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path: root/drivers/net/wireless/iwlwifi/iwl-4965.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-4965.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-4965.c83
1 files changed, 62 insertions, 21 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index d3afddae8d9..83e6a42ca2d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -346,9 +346,19 @@ static void iwl4965_chain_noise_reset(struct iwl_priv *priv)
{
struct iwl_chain_noise_data *data = &(priv->chain_noise_data);
- if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) {
+ if ((data->state == IWL_CHAIN_NOISE_ALIVE) &&
+ iwl_is_associated(priv)) {
struct iwl_calib_diff_gain_cmd cmd;
+ /* clear data for chain noise calibration algorithm */
+ data->chain_noise_a = 0;
+ data->chain_noise_b = 0;
+ data->chain_noise_c = 0;
+ data->chain_signal_a = 0;
+ data->chain_signal_b = 0;
+ data->chain_signal_c = 0;
+ data->beacon_count = 0;
+
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.op_code = IWL_PHY_CALIBRATE_DIFF_GAIN_CMD;
cmd.diff_gain_a = 0;
@@ -419,13 +429,6 @@ static void iwl4965_gain_computation(struct iwl_priv *priv,
/* Mark so we run this algo only once! */
data->state = IWL_CHAIN_NOISE_CALIBRATED;
}
- data->chain_noise_a = 0;
- data->chain_noise_b = 0;
- data->chain_noise_c = 0;
- data->chain_signal_a = 0;
- data->chain_signal_b = 0;
- data->chain_signal_c = 0;
- data->beacon_count = 0;
}
static void iwl4965_bg_txpower_work(struct work_struct *work)
@@ -669,6 +672,7 @@ static int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
priv->cfg->ops->lib->temp_ops.set_ct_kill(priv);
priv->hw_params.sens = &iwl4965_sensitivity;
+ priv->hw_params.beacon_time_tsf_bits = IWLAGN_EXT_BEACON_TIME_POS;
return 0;
}
@@ -1441,7 +1445,8 @@ static int iwl4965_send_rxon_assoc(struct iwl_priv *priv)
return ret;
}
-static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
+static int iwl4965_hw_channel_switch(struct iwl_priv *priv,
+ struct ieee80211_channel_switch *ch_switch)
{
int rc;
u8 band = 0;
@@ -1449,11 +1454,14 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
u8 ctrl_chan_high = 0;
struct iwl4965_channel_switch_cmd cmd;
const struct iwl_channel_info *ch_info;
-
+ u32 switch_time_in_usec, ucode_switch_time;
+ u16 ch;
+ u32 tsf_low;
+ u8 switch_count;
+ u16 beacon_interval = le16_to_cpu(priv->rxon_timing.beacon_interval);
+ struct ieee80211_vif *vif = priv->vif;
band = priv->band == IEEE80211_BAND_2GHZ;
- ch_info = iwl_get_channel_info(priv, priv->band, channel);
-
is_ht40 = is_ht40_channel(priv->staging_rxon.flags);
if (is_ht40 &&
@@ -1462,26 +1470,56 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
cmd.band = band;
cmd.expect_beacon = 0;
- cmd.channel = cpu_to_le16(channel);
+ ch = ieee80211_frequency_to_channel(ch_switch->channel->center_freq);
+ cmd.channel = cpu_to_le16(ch);
cmd.rxon_flags = priv->staging_rxon.flags;
cmd.rxon_filter_flags = priv->staging_rxon.filter_flags;
- cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
+ switch_count = ch_switch->count;
+ tsf_low = ch_switch->timestamp & 0x0ffffffff;
+ /*
+ * calculate the ucode channel switch time
+ * adding TSF as one of the factor for when to switch
+ */
+ if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) {
+ if (switch_count > ((priv->ucode_beacon_time - tsf_low) /
+ beacon_interval)) {
+ switch_count -= (priv->ucode_beacon_time -
+ tsf_low) / beacon_interval;
+ } else
+ switch_count = 0;
+ }
+ if (switch_count <= 1)
+ cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
+ else {
+ switch_time_in_usec =
+ vif->bss_conf.beacon_int * switch_count * TIME_UNIT;
+ ucode_switch_time = iwl_usecs_to_beacons(priv,
+ switch_time_in_usec,
+ beacon_interval);
+ cmd.switch_time = iwl_add_beacon_time(priv,
+ priv->ucode_beacon_time,
+ ucode_switch_time,
+ beacon_interval);
+ }
+ IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n",
+ cmd.switch_time);
+ ch_info = iwl_get_channel_info(priv, priv->band, ch);
if (ch_info)
cmd.expect_beacon = is_channel_radar(ch_info);
else {
IWL_ERR(priv, "invalid channel switch from %u to %u\n",
- priv->active_rxon.channel, channel);
+ priv->active_rxon.channel, ch);
return -EFAULT;
}
- rc = iwl4965_fill_txpower_tbl(priv, band, channel, is_ht40,
+ rc = iwl4965_fill_txpower_tbl(priv, band, ch, is_ht40,
ctrl_chan_high, &cmd.tx_power);
if (rc) {
IWL_DEBUG_11H(priv, "error:%d fill txpower_tbl\n", rc);
return rc;
}
- priv->switch_rxon.channel = cpu_to_le16(channel);
+ priv->switch_rxon.channel = cmd.channel;
priv->switch_rxon.switch_in_progress = true;
return iwl_send_cmd_pdu(priv, REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd);
@@ -1870,7 +1908,7 @@ static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv,
IWL_DEBUG_TX_REPLY(priv, "FrameCnt = %d, StartIdx=%d idx=%d\n",
agg->frame_count, agg->start_idx, idx);
- info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]);
+ info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb);
info->status.rates[0].count = tx_resp->failure_frame + 1;
info->flags &= ~IEEE80211_TX_CTL_AMPDU;
info->flags |= iwl_tx_status_to_mac80211(status);
@@ -2026,6 +2064,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
int sta_id;
int freed;
u8 *qc = NULL;
+ unsigned long flags;
if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d "
@@ -2035,7 +2074,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
return;
}
- info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]);
+ info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
memset(&info->status, 0, sizeof(info->status));
hdr = iwl_tx_queue_get_hdr(priv, txq_id, index);
@@ -2050,10 +2089,10 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
return;
}
+ spin_lock_irqsave(&priv->sta_lock, flags);
if (txq->sched_retry) {
const u32 scd_ssn = iwl4965_get_scd_ssn(tx_resp);
struct iwl_ht_agg *agg = NULL;
-
WARN_ON(!qc);
agg = &priv->stations[sta_id].tid[tid].agg;
@@ -2110,6 +2149,8 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
iwlagn_txq_check_empty(priv, sta_id, tid, txq_id);
iwl_check_abort_status(priv, tx_resp->frame_count, status);
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
}
static int iwl4965_calc_rssi(struct iwl_priv *priv,
@@ -2285,7 +2326,7 @@ struct iwl_cfg iwl4965_agn_cfg = {
* Force use of chains B and C for scan RX on 5 GHz band
* because the device has off-channel reception on chain A.
*/
- .scan_antennas[IEEE80211_BAND_5GHZ] = ANT_BC,
+ .scan_rx_antennas[IEEE80211_BAND_5GHZ] = ANT_BC,
};
/* Module firmware */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-02 03:23:04 +0000