aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/ath/ath5k/base.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/base.c')
-rw-r--r--drivers/net/wireless/ath/ath5k/base.c218
1 files changed, 144 insertions, 74 deletions
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 9f31cfa56cc..4b18434ba69 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -56,10 +56,12 @@
#include <linux/etherdevice.h>
#include <linux/nl80211.h>
+#include <net/cfg80211.h>
#include <net/ieee80211_radiotap.h>
#include <asm/unaligned.h>
+#include <net/mac80211.h>
#include "base.h"
#include "reg.h"
#include "debug.h"
@@ -164,28 +166,36 @@ static const struct ieee80211_rate ath5k_rates[] = {
.flags = IEEE80211_RATE_SHORT_PREAMBLE },
{ .bitrate = 60,
.hw_value = ATH5K_RATE_CODE_6M,
- .flags = 0 },
+ .flags = IEEE80211_RATE_SUPPORTS_5MHZ |
+ IEEE80211_RATE_SUPPORTS_10MHZ },
{ .bitrate = 90,
.hw_value = ATH5K_RATE_CODE_9M,
- .flags = 0 },
+ .flags = IEEE80211_RATE_SUPPORTS_5MHZ |
+ IEEE80211_RATE_SUPPORTS_10MHZ },
{ .bitrate = 120,
.hw_value = ATH5K_RATE_CODE_12M,
- .flags = 0 },
+ .flags = IEEE80211_RATE_SUPPORTS_5MHZ |
+ IEEE80211_RATE_SUPPORTS_10MHZ },
{ .bitrate = 180,
.hw_value = ATH5K_RATE_CODE_18M,
- .flags = 0 },
+ .flags = IEEE80211_RATE_SUPPORTS_5MHZ |
+ IEEE80211_RATE_SUPPORTS_10MHZ },
{ .bitrate = 240,
.hw_value = ATH5K_RATE_CODE_24M,
- .flags = 0 },
+ .flags = IEEE80211_RATE_SUPPORTS_5MHZ |
+ IEEE80211_RATE_SUPPORTS_10MHZ },
{ .bitrate = 360,
.hw_value = ATH5K_RATE_CODE_36M,
- .flags = 0 },
+ .flags = IEEE80211_RATE_SUPPORTS_5MHZ |
+ IEEE80211_RATE_SUPPORTS_10MHZ },
{ .bitrate = 480,
.hw_value = ATH5K_RATE_CODE_48M,
- .flags = 0 },
+ .flags = IEEE80211_RATE_SUPPORTS_5MHZ |
+ IEEE80211_RATE_SUPPORTS_10MHZ },
{ .bitrate = 540,
.hw_value = ATH5K_RATE_CODE_54M,
- .flags = 0 },
+ .flags = IEEE80211_RATE_SUPPORTS_5MHZ |
+ IEEE80211_RATE_SUPPORTS_10MHZ },
};
static inline u64 ath5k_extend_tsf(struct ath5k_hw *ah, u32 rstamp)
@@ -240,13 +250,14 @@ static const struct ath_ops ath5k_common_ops = {
* Driver Initialization *
\***********************/
-static int ath5k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request)
+static void ath5k_reg_notifier(struct wiphy *wiphy,
+ struct regulatory_request *request)
{
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct ath5k_hw *ah = hw->priv;
struct ath_regulatory *regulatory = ath5k_hw_regulatory(ah);
- return ath_reg_notifier_apply(wiphy, request, regulatory);
+ ath_reg_notifier_apply(wiphy, request, regulatory);
}
/********************\
@@ -433,11 +444,27 @@ ath5k_setup_bands(struct ieee80211_hw *hw)
* Called with ah->lock.
*/
int
-ath5k_chan_set(struct ath5k_hw *ah, struct ieee80211_channel *chan)
+ath5k_chan_set(struct ath5k_hw *ah, struct cfg80211_chan_def *chandef)
{
ATH5K_DBG(ah, ATH5K_DEBUG_RESET,
"channel set, resetting (%u -> %u MHz)\n",
- ah->curchan->center_freq, chan->center_freq);
+ ah->curchan->center_freq, chandef->chan->center_freq);
+
+ switch (chandef->width) {
+ case NL80211_CHAN_WIDTH_20:
+ case NL80211_CHAN_WIDTH_20_NOHT:
+ ah->ah_bwmode = AR5K_BWMODE_DEFAULT;
+ break;
+ case NL80211_CHAN_WIDTH_5:
+ ah->ah_bwmode = AR5K_BWMODE_5MHZ;
+ break;
+ case NL80211_CHAN_WIDTH_10:
+ ah->ah_bwmode = AR5K_BWMODE_10MHZ;
+ break;
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
/*
* To switch channels clear any pending DMA operations;
@@ -445,7 +472,7 @@ ath5k_chan_set(struct ath5k_hw *ah, struct ieee80211_channel *chan)
* hardware at the new frequency, and then re-enable
* the relevant bits of the h/w.
*/
- return ath5k_reset(ah, chan, true);
+ return ath5k_reset(ah, chandef->chan, true);
}
void ath5k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
@@ -511,8 +538,9 @@ ath5k_update_bssid_mask_and_opmode(struct ath5k_hw *ah,
ath5k_vif_iter(&iter_data, vif->addr, vif);
/* Get list of all active MAC addresses */
- ieee80211_iterate_active_interfaces_atomic(ah->hw, ath5k_vif_iter,
- &iter_data);
+ ieee80211_iterate_active_interfaces_atomic(
+ ah->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+ ath5k_vif_iter, &iter_data);
memcpy(ah->bssidmask, iter_data.mask, ETH_ALEN);
ah->opmode = iter_data.opmode;
@@ -664,9 +692,46 @@ static enum ath5k_pkt_type get_hw_packet_type(struct sk_buff *skb)
return htype;
}
+static struct ieee80211_rate *
+ath5k_get_rate(const struct ieee80211_hw *hw,
+ const struct ieee80211_tx_info *info,
+ struct ath5k_buf *bf, int idx)
+{
+ /*
+ * convert a ieee80211_tx_rate RC-table entry to
+ * the respective ieee80211_rate struct
+ */
+ if (bf->rates[idx].idx < 0) {
+ return NULL;
+ }
+
+ return &hw->wiphy->bands[info->band]->bitrates[ bf->rates[idx].idx ];
+}
+
+static u16
+ath5k_get_rate_hw_value(const struct ieee80211_hw *hw,
+ const struct ieee80211_tx_info *info,
+ struct ath5k_buf *bf, int idx)
+{
+ struct ieee80211_rate *rate;
+ u16 hw_rate;
+ u8 rc_flags;
+
+ rate = ath5k_get_rate(hw, info, bf, idx);
+ if (!rate)
+ return 0;
+
+ rc_flags = bf->rates[idx].flags;
+ hw_rate = (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) ?
+ rate->hw_value_short : rate->hw_value;
+
+ return hw_rate;
+}
+
static int
ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
- struct ath5k_txq *txq, int padsize)
+ struct ath5k_txq *txq, int padsize,
+ struct ieee80211_tx_control *control)
{
struct ath5k_desc *ds = bf->desc;
struct sk_buff *skb = bf->skb;
@@ -686,7 +751,14 @@ ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
bf->skbaddr = dma_map_single(ah->dev, skb->data, skb->len,
DMA_TO_DEVICE);
- rate = ieee80211_get_tx_rate(ah->hw, info);
+ if (dma_mapping_error(ah->dev, bf->skbaddr))
+ return -ENOSPC;
+
+ ieee80211_get_tx_rates(info->control.vif, (control) ? control->sta : NULL, skb, bf->rates,
+ ARRAY_SIZE(bf->rates));
+
+ rate = ath5k_get_rate(ah->hw, info, bf, 0);
+
if (!rate) {
ret = -EINVAL;
goto err_unmap;
@@ -696,8 +768,8 @@ ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
flags |= AR5K_TXDESC_NOACK;
rc_flags = info->control.rates[0].flags;
- hw_rate = (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) ?
- rate->hw_value_short : rate->hw_value;
+
+ hw_rate = ath5k_get_rate_hw_value(ah->hw, info, bf, 0);
pktlen = skb->len;
@@ -720,12 +792,13 @@ ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
duration = le16_to_cpu(ieee80211_ctstoself_duration(ah->hw,
info->control.vif, pktlen, info));
}
+
ret = ah->ah_setup_tx_desc(ah, ds, pktlen,
ieee80211_get_hdrlen_from_skb(skb), padsize,
get_hw_packet_type(skb),
(ah->ah_txpower.txp_requested * 2),
hw_rate,
- info->control.rates[0].count, keyidx, ah->ah_tx_ant, flags,
+ bf->rates[0].count, keyidx, ah->ah_tx_ant, flags,
cts_rate, duration);
if (ret)
goto err_unmap;
@@ -734,13 +807,15 @@ ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
if (ah->ah_capabilities.cap_has_mrr_support) {
memset(mrr_rate, 0, sizeof(mrr_rate));
memset(mrr_tries, 0, sizeof(mrr_tries));
+
for (i = 0; i < 3; i++) {
- rate = ieee80211_get_alt_retry_rate(ah->hw, info, i);
+
+ rate = ath5k_get_rate(ah->hw, info, bf, i);
if (!rate)
break;
- mrr_rate[i] = rate->hw_value;
- mrr_tries[i] = info->control.rates[i + 1].count;
+ mrr_rate[i] = ath5k_get_rate_hw_value(ah->hw, info, bf, i);
+ mrr_tries[i] = bf->rates[i].count;
}
ath5k_hw_setup_mrr_tx_desc(ah, ds,
@@ -848,7 +923,7 @@ ath5k_txbuf_free_skb(struct ath5k_hw *ah, struct ath5k_buf *bf)
return;
dma_unmap_single(ah->dev, bf->skbaddr, bf->skb->len,
DMA_TO_DEVICE);
- dev_kfree_skb_any(bf->skb);
+ ieee80211_free_txskb(ah->hw, bf->skb);
bf->skb = NULL;
bf->skbaddr = 0;
bf->desc->ds_data = 0;
@@ -1166,14 +1241,11 @@ static void
ath5k_check_ibss_tsf(struct ath5k_hw *ah, struct sk_buff *skb,
struct ieee80211_rx_status *rxs)
{
- struct ath_common *common = ath5k_hw_common(ah);
u64 tsf, bc_tstamp;
u32 hw_tu;
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
- if (ieee80211_is_beacon(mgmt->frame_control) &&
- le16_to_cpu(mgmt->u.beacon.capab_info) & WLAN_CAPABILITY_IBSS &&
- ether_addr_equal(mgmt->bssid, common->curbssid)) {
+ if (le16_to_cpu(mgmt->u.beacon.capab_info) & WLAN_CAPABILITY_IBSS) {
/*
* Received an IBSS beacon with the same BSSID. Hardware *must*
* have updated the local TSF. We have to work around various
@@ -1229,23 +1301,6 @@ ath5k_check_ibss_tsf(struct ath5k_hw *ah, struct sk_buff *skb,
}
}
-static void
-ath5k_update_beacon_rssi(struct ath5k_hw *ah, struct sk_buff *skb, int rssi)
-{
- struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
- struct ath_common *common = ath5k_hw_common(ah);
-
- /* only beacons from our BSSID */
- if (!ieee80211_is_beacon(mgmt->frame_control) ||
- !ether_addr_equal(mgmt->bssid, common->curbssid))
- return;
-
- ewma_add(&ah->ah_beacon_rssi_avg, rssi);
-
- /* in IBSS mode we should keep RSSI statistics per neighbour */
- /* le16_to_cpu(mgmt->u.beacon.capab_info) & WLAN_CAPABILITY_IBSS */
-}
-
/*
* Compute padding position. skb must contain an IEEE 802.11 frame
*/
@@ -1318,6 +1373,7 @@ ath5k_receive_frame(struct ath5k_hw *ah, struct sk_buff *skb,
struct ath5k_rx_status *rs)
{
struct ieee80211_rx_status *rxs;
+ struct ath_common *common = ath5k_hw_common(ah);
ath5k_remove_padding(skb);
@@ -1335,20 +1391,9 @@ ath5k_receive_frame(struct ath5k_hw *ah, struct sk_buff *skb,
* 15bit only. that means TSF extension has to be done within
* 32768usec (about 32ms). it might be necessary to move this to
* the interrupt handler, like it is done in madwifi.
- *
- * Unfortunately we don't know when the hardware takes the rx
- * timestamp (beginning of phy frame, data frame, end of rx?).
- * The only thing we know is that it is hardware specific...
- * On AR5213 it seems the rx timestamp is at the end of the
- * frame, but I'm not sure.
- *
- * NOTE: mac80211 defines mactime at the beginning of the first
- * data symbol. Since we don't have any time references it's
- * impossible to comply to that. This affects IBSS merge only
- * right now, so it's not too bad...
*/
rxs->mactime = ath5k_extend_tsf(ah, rs->rs_tstamp);
- rxs->flag |= RX_FLAG_MACTIME_MPDU;
+ rxs->flag |= RX_FLAG_MACTIME_END;
rxs->freq = ah->curchan->center_freq;
rxs->band = ah->curchan->band;
@@ -1364,6 +1409,16 @@ ath5k_receive_frame(struct ath5k_hw *ah, struct sk_buff *skb,
rxs->rate_idx = ath5k_hw_to_driver_rix(ah, rs->rs_rate);
rxs->flag |= ath5k_rx_decrypted(ah, skb, rs);
+ switch (ah->ah_bwmode) {
+ case AR5K_BWMODE_5MHZ:
+ rxs->flag |= RX_FLAG_5MHZ;
+ break;
+ case AR5K_BWMODE_10MHZ:
+ rxs->flag |= RX_FLAG_10MHZ;
+ break;
+ default:
+ break;
+ }
if (rxs->rate_idx >= 0 && rs->rs_rate ==
ah->sbands[ah->curchan->band].bitrates[rxs->rate_idx].hw_value_short)
@@ -1371,11 +1426,13 @@ ath5k_receive_frame(struct ath5k_hw *ah, struct sk_buff *skb,
trace_ath5k_rx(ah, skb);
- ath5k_update_beacon_rssi(ah, skb, rs->rs_rssi);
+ if (ath_is_mybeacon(common, (struct ieee80211_hdr *)skb->data)) {
+ ewma_add(&ah->ah_beacon_rssi_avg, rs->rs_rssi);
- /* check beacons in IBSS mode */
- if (ah->opmode == NL80211_IFTYPE_ADHOC)
- ath5k_check_ibss_tsf(ah, skb, rxs);
+ /* check beacons in IBSS mode */
+ if (ah->opmode == NL80211_IFTYPE_ADHOC)
+ ath5k_check_ibss_tsf(ah, skb, rxs);
+ }
ieee80211_rx(ah->hw, skb);
}
@@ -1524,7 +1581,7 @@ unlock:
void
ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ath5k_txq *txq)
+ struct ath5k_txq *txq, struct ieee80211_tx_control *control)
{
struct ath5k_hw *ah = hw->priv;
struct ath5k_buf *bf;
@@ -1564,7 +1621,7 @@ ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
bf->skb = skb;
- if (ath5k_txbuf_setup(ah, bf, txq, padsize)) {
+ if (ath5k_txbuf_setup(ah, bf, txq, padsize, control)) {
bf->skb = NULL;
spin_lock_irqsave(&ah->txbuflock, flags);
list_add_tail(&bf->list, &ah->txbuf);
@@ -1575,21 +1632,26 @@ ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
return;
drop_packet:
- dev_kfree_skb_any(skb);
+ ieee80211_free_txskb(hw, skb);
}
static void
ath5k_tx_frame_completed(struct ath5k_hw *ah, struct sk_buff *skb,
- struct ath5k_txq *txq, struct ath5k_tx_status *ts)
+ struct ath5k_txq *txq, struct ath5k_tx_status *ts,
+ struct ath5k_buf *bf)
{
struct ieee80211_tx_info *info;
u8 tries[3];
int i;
+ int size = 0;
ah->stats.tx_all_count++;
ah->stats.tx_bytes_count += skb->len;
info = IEEE80211_SKB_CB(skb);
+ size = min_t(int, sizeof(info->status.rates), sizeof(bf->rates));
+ memcpy(info->status.rates, bf->rates, size);
+
tries[0] = info->status.rates[0].count;
tries[1] = info->status.rates[1].count;
tries[2] = info->status.rates[2].count;
@@ -1672,7 +1734,7 @@ ath5k_tx_processq(struct ath5k_hw *ah, struct ath5k_txq *txq)
dma_unmap_single(ah->dev, bf->skbaddr, skb->len,
DMA_TO_DEVICE);
- ath5k_tx_frame_completed(ah, skb, txq, &ts);
+ ath5k_tx_frame_completed(ah, skb, txq, &ts, bf);
}
/*
@@ -1926,7 +1988,7 @@ ath5k_beacon_send(struct ath5k_hw *ah)
skb = ieee80211_get_buffered_bc(ah->hw, vif);
while (skb) {
- ath5k_tx_queue(ah->hw, skb, ah->cabq);
+ ath5k_tx_queue(ah->hw, skb, ah->cabq, NULL);
if (ah->cabq->txq_len >= ah->cabq->txq_max)
break;
@@ -2378,6 +2440,9 @@ ath5k_tx_complete_poll_work(struct work_struct *work)
int i;
bool needreset = false;
+ if (!test_bit(ATH_STAT_STARTED, ah->status))
+ return;
+
mutex_lock(&ah->lock);
for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
@@ -2434,7 +2499,7 @@ static const struct ieee80211_iface_combination if_comb = {
.num_different_channels = 1,
};
-int __devinit
+int
ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops)
{
struct ieee80211_hw *hw = ah->hw;
@@ -2448,7 +2513,8 @@ ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops)
IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
IEEE80211_HW_SIGNAL_DBM |
IEEE80211_HW_MFP_CAPABLE |
- IEEE80211_HW_REPORTS_TX_ACK_STATUS;
+ IEEE80211_HW_REPORTS_TX_ACK_STATUS |
+ IEEE80211_HW_SUPPORTS_RC_TABLE;
hw->wiphy->interface_modes =
BIT(NL80211_IFTYPE_AP) |
@@ -2462,12 +2528,13 @@ ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops)
/* SW support for IBSS_RSN is provided by mac80211 */
hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
+ hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_5_10_MHZ;
+
/* both antennas can be configured as RX or TX */
hw->wiphy->available_antennas_tx = 0x3;
hw->wiphy->available_antennas_rx = 0x3;
hw->extra_tx_headroom = 2;
- hw->channel_change_time = 5000;
/*
* Mark the device as detached to avoid processing
@@ -2648,7 +2715,7 @@ int ath5k_start(struct ieee80211_hw *hw)
* be followed by initialization of the appropriate bits
* and then setup of the interrupt mask.
*/
- ah->curchan = ah->hw->conf.channel;
+ ah->curchan = ah->hw->conf.chandef.chan;
ah->imask = AR5K_INT_RXOK
| AR5K_INT_RXERR
| AR5K_INT_RXEOL
@@ -2685,6 +2752,7 @@ done:
mmiowb();
mutex_unlock(&ah->lock);
+ set_bit(ATH_STAT_STARTED, ah->status);
ieee80211_queue_delayed_work(ah->hw, &ah->tx_complete_work,
msecs_to_jiffies(ATH5K_TX_COMPLETE_POLL_INT));
@@ -2746,6 +2814,7 @@ void ath5k_stop(struct ieee80211_hw *hw)
ath5k_stop_tasklets(ah);
+ clear_bit(ATH_STAT_STARTED, ah->status);
cancel_delayed_work_sync(&ah->tx_complete_work);
if (!ath5k_modparam_no_hw_rfkill_switch)
@@ -2860,7 +2929,7 @@ static void ath5k_reset_work(struct work_struct *work)
mutex_unlock(&ah->lock);
}
-static int __devinit
+static int
ath5k_init(struct ieee80211_hw *hw)
{
@@ -3045,8 +3114,9 @@ ath5k_any_vif_assoc(struct ath5k_hw *ah)
iter_data.need_set_hw_addr = false;
iter_data.found_active = true;
- ieee80211_iterate_active_interfaces_atomic(ah->hw, ath5k_vif_iter,
- &iter_data);
+ ieee80211_iterate_active_interfaces_atomic(
+ ah->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+ ath5k_vif_iter, &iter_data);
return iter_data.any_assoc;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 15:59:27 +0000