#include <linux/etherdevice.h>
#include <asm/unaligned.h>
+#include "iwl-core.h"
#include "iwl-4965.h"
#include "iwl-helpers.h"
IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */
};
+#ifdef CONFIG_IWL4965_HT
+
+static const u16 default_tid_to_tx_fifo[] = {
+ IWL_TX_FIFO_AC1,
+ IWL_TX_FIFO_AC0,
+ IWL_TX_FIFO_AC0,
+ IWL_TX_FIFO_AC1,
+ IWL_TX_FIFO_AC2,
+ IWL_TX_FIFO_AC2,
+ IWL_TX_FIFO_AC3,
+ IWL_TX_FIFO_AC3,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_AC3
+};
+
+#endif /*CONFIG_IWL4965_HT */
+
static int is_fat_channel(__le32 rxon_flags)
{
return (rxon_flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) ||
return 0;
}
+int iwl4965_hwrate_to_plcp_idx(u32 rate_n_flags)
+{
+ int idx = 0;
+
+ /* 4965 HT rate format */
+ if (rate_n_flags & RATE_MCS_HT_MSK) {
+ idx = (rate_n_flags & 0xff);
+
+ if (idx >= IWL_RATE_MIMO_6M_PLCP)
+ idx = idx - IWL_RATE_MIMO_6M_PLCP;
+
+ idx += IWL_FIRST_OFDM_RATE;
+ /* skip 9M not supported in ht*/
+ if (idx >= IWL_RATE_9M_INDEX)
+ idx += 1;
+ if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE))
+ return idx;
+
+ /* 4965 legacy rate format, search for match in table */
+ } else {
+ for (idx = 0; idx < ARRAY_SIZE(iwl4965_rates); idx++)
+ if (iwl4965_rates[idx].plcp == (rate_n_flags & 0xFF))
+ return idx;
+ }
+
+ return -1;
+}
+
+/**
+ * translate ucode response to mac80211 tx status control values
+ */
+void iwl4965_hwrate_to_tx_control(struct iwl4965_priv *priv, u32 rate_n_flags,
+ struct ieee80211_tx_control *control)
+{
+ int rate_index;
+
+ control->antenna_sel_tx =
+ ((rate_n_flags & RATE_MCS_ANT_AB_MSK) >> RATE_MCS_ANT_A_POS);
+ if (rate_n_flags & RATE_MCS_HT_MSK)
+ control->flags |= IEEE80211_TXCTL_OFDM_HT;
+ if (rate_n_flags & RATE_MCS_GF_MSK)
+ control->flags |= IEEE80211_TXCTL_GREEN_FIELD;
+ if (rate_n_flags & RATE_MCS_FAT_MSK)
+ control->flags |= IEEE80211_TXCTL_40_MHZ_WIDTH;
+ if (rate_n_flags & RATE_MCS_DUP_MSK)
+ control->flags |= IEEE80211_TXCTL_DUP_DATA;
+ if (rate_n_flags & RATE_MCS_SGI_MSK)
+ control->flags |= IEEE80211_TXCTL_SHORT_GI;
+ /* since iwl4965_hwrate_to_plcp_idx is band indifferent, we always use
+ * IEEE80211_BAND_2GHZ band as it contains all the rates */
+ rate_index = iwl4965_hwrate_to_plcp_idx(rate_n_flags);
+ if (rate_index == -1)
+ control->tx_rate = NULL;
+ else
+ control->tx_rate =
+ &priv->bands[IEEE80211_BAND_2GHZ].bitrates[rate_index];
+}
+
/*
* Determine how many receiver/antenna chains to use.
* More provides better reception via diversity. Fewer saves power.
start = IWL_STA_ID;
if (is_broadcast_ether_addr(addr))
- return IWL4965_BROADCAST_ID;
+ return priv->hw_setting.bcast_sta_id;
spin_lock_irqsave(&priv->sta_lock, flags);
for (i = start; i < priv->hw_setting.max_stations; i++)
*
* Does not set up a command, or touch hardware.
*/
-int iwl4965_set_fat_chan_info(struct iwl4965_priv *priv, int phymode, u16 channel,
+int iwl4965_set_fat_chan_info(struct iwl4965_priv *priv,
+ enum ieee80211_band band, u16 channel,
const struct iwl4965_eeprom_channel *eeprom_ch,
u8 fat_extension_channel)
{
struct iwl4965_channel_info *ch_info;
ch_info = (struct iwl4965_channel_info *)
- iwl4965_get_channel_info(priv, phymode, channel);
+ iwl4965_get_channel_info(priv, band, channel);
if (!is_channel_valid(ch_info))
return -1;
/* set CSR_HW_CONFIG_REG for uCode use */
- iwl4965_set_bit(priv, CSR_SW_VER, CSR_HW_IF_CONFIG_REG_BIT_KEDRON_R |
- CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
- CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
+ iwl4965_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ CSR49_HW_IF_CONFIG_REG_BIT_4965_R |
+ CSR49_HW_IF_CONFIG_REG_BIT_RADIO_SI |
+ CSR49_HW_IF_CONFIG_REG_BIT_MAC_SI);
rc = iwl4965_grab_nic_access(priv);
if (rc < 0) {
memset(priv->hw_setting.shared_virt, 0, sizeof(struct iwl4965_shared));
priv->hw_setting.max_txq_num = iwl4965_param_queues_num;
- priv->hw_setting.ac_queue_count = AC_NUM;
priv->hw_setting.tx_cmd_len = sizeof(struct iwl4965_tx_cmd);
priv->hw_setting.max_rxq_size = RX_QUEUE_SIZE;
priv->hw_setting.max_rxq_log = RX_QUEUE_SIZE_LOG;
priv->hw_setting.max_pkt_size = priv->hw_setting.rx_buf_size - 256;
priv->hw_setting.max_stations = IWL4965_STATION_COUNT;
priv->hw_setting.bcast_sta_id = IWL4965_BROADCAST_ID;
+
+ priv->hw_setting.tx_ant_num = 2;
+
return 0;
}
}
static const struct iwl4965_channel_info *
-iwl4965_get_channel_txpower_info(struct iwl4965_priv *priv, u8 phymode, u16 channel)
+iwl4965_get_channel_txpower_info(struct iwl4965_priv *priv,
+ enum ieee80211_band band, u16 channel)
{
const struct iwl4965_channel_info *ch_info;
- ch_info = iwl4965_get_channel_info(priv, phymode, channel);
+ ch_info = iwl4965_get_channel_info(priv, band, channel);
if (!is_channel_valid(ch_info))
return NULL;
/* Get current (RXON) channel, band, width */
ch_info =
- iwl4965_get_channel_txpower_info(priv, priv->phymode, channel);
+ iwl4965_get_channel_txpower_info(priv, priv->band, channel);
IWL_DEBUG_TXPOWER("chan %d band %d is_fat %d\n", channel, band,
is_fat);
return -EAGAIN;
}
- band = ((priv->phymode == MODE_IEEE80211B) ||
- (priv->phymode == MODE_IEEE80211G));
+ band = priv->band == IEEE80211_BAND_2GHZ;
is_fat = is_fat_channel(priv->active_rxon.flags);
struct iwl4965_channel_switch_cmd cmd = { 0 };
const struct iwl4965_channel_info *ch_info;
- band = ((priv->phymode == MODE_IEEE80211B) ||
- (priv->phymode == MODE_IEEE80211G));
+ band = priv->band == IEEE80211_BAND_2GHZ;
- ch_info = iwl4965_get_channel_info(priv, priv->phymode, channel);
+ ch_info = iwl4965_get_channel_info(priv, priv->band, channel);
is_fat = is_fat_channel(priv->staging_rxon.flags);
u16 fc = le16_to_cpu(hdr->frame_control);
u8 rate_plcp;
u16 rate_flags = 0;
- int rate_idx = min(ctrl->tx_rate & 0xffff, IWL_RATE_COUNT - 1);
+ int rate_idx = min(ctrl->tx_rate->hw_value & 0xffff, IWL_RATE_COUNT - 1);
rate_plcp = iwl4965_rates[rate_idx].plcp;
tx_beacon_cmd = &frame->u.beacon;
memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
- tx_beacon_cmd->tx.sta_id = IWL4965_BROADCAST_ID;
+ tx_beacon_cmd->tx.sta_id = priv->hw_setting.bcast_sta_id;
tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
frame_size = iwl4965_fill_beacon_frame(priv,
IWL_DEBUG_ASSOC("rx chain %X\n", priv->staging_rxon.rx_chain);
}
-#ifdef CONFIG_IWL4965_HT
-#ifdef CONFIG_IWL4965_HT_AGG
-/*
- get the traffic load value for tid
-*/
-static u32 iwl4965_tl_get_load(struct iwl4965_priv *priv, u8 tid)
-{
- u32 load = 0;
- u32 current_time = jiffies_to_msecs(jiffies);
- u32 time_diff;
- s32 index;
- unsigned long flags;
- struct iwl4965_traffic_load *tid_ptr = NULL;
-
- if (tid >= TID_MAX_LOAD_COUNT)
- return 0;
-
- tid_ptr = &(priv->lq_mngr.agg_ctrl.traffic_load[tid]);
-
- current_time -= current_time % TID_ROUND_VALUE;
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- if (!(tid_ptr->queue_count))
- goto out;
-
- time_diff = TIME_WRAP_AROUND(tid_ptr->time_stamp, current_time);
- index = time_diff / TID_QUEUE_CELL_SPACING;
-
- if (index >= TID_QUEUE_MAX_SIZE) {
- u32 oldest_time = current_time - TID_MAX_TIME_DIFF;
-
- while (tid_ptr->queue_count &&
- (tid_ptr->time_stamp < oldest_time)) {
- tid_ptr->total -= tid_ptr->packet_count[tid_ptr->head];
- tid_ptr->packet_count[tid_ptr->head] = 0;
- tid_ptr->time_stamp += TID_QUEUE_CELL_SPACING;
- tid_ptr->queue_count--;
- tid_ptr->head++;
- if (tid_ptr->head >= TID_QUEUE_MAX_SIZE)
- tid_ptr->head = 0;
- }
- }
- load = tid_ptr->total;
-
- out:
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- return load;
-}
-
-/*
- increment traffic load value for tid and also remove
- any old values if passed the certian time period
-*/
-static void iwl4965_tl_add_packet(struct iwl4965_priv *priv, u8 tid)
-{
- u32 current_time = jiffies_to_msecs(jiffies);
- u32 time_diff;
- s32 index;
- unsigned long flags;
- struct iwl4965_traffic_load *tid_ptr = NULL;
-
- if (tid >= TID_MAX_LOAD_COUNT)
- return;
-
- tid_ptr = &(priv->lq_mngr.agg_ctrl.traffic_load[tid]);
-
- current_time -= current_time % TID_ROUND_VALUE;
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- if (!(tid_ptr->queue_count)) {
- tid_ptr->total = 1;
- tid_ptr->time_stamp = current_time;
- tid_ptr->queue_count = 1;
- tid_ptr->head = 0;
- tid_ptr->packet_count[0] = 1;
- goto out;
- }
-
- time_diff = TIME_WRAP_AROUND(tid_ptr->time_stamp, current_time);
- index = time_diff / TID_QUEUE_CELL_SPACING;
-
- if (index >= TID_QUEUE_MAX_SIZE) {
- u32 oldest_time = current_time - TID_MAX_TIME_DIFF;
-
- while (tid_ptr->queue_count &&
- (tid_ptr->time_stamp < oldest_time)) {
- tid_ptr->total -= tid_ptr->packet_count[tid_ptr->head];
- tid_ptr->packet_count[tid_ptr->head] = 0;
- tid_ptr->time_stamp += TID_QUEUE_CELL_SPACING;
- tid_ptr->queue_count--;
- tid_ptr->head++;
- if (tid_ptr->head >= TID_QUEUE_MAX_SIZE)
- tid_ptr->head = 0;
- }
- }
-
- index = (tid_ptr->head + index) % TID_QUEUE_MAX_SIZE;
- tid_ptr->packet_count[index] = tid_ptr->packet_count[index] + 1;
- tid_ptr->total = tid_ptr->total + 1;
-
- if ((index + 1) > tid_ptr->queue_count)
- tid_ptr->queue_count = index + 1;
- out:
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
-
-}
-
-#define MMAC_SCHED_MAX_NUMBER_OF_HT_BACK_FLOWS 7
-enum HT_STATUS {
- BA_STATUS_FAILURE = 0,
- BA_STATUS_INITIATOR_DELBA,
- BA_STATUS_RECIPIENT_DELBA,
- BA_STATUS_RENEW_ADDBA_REQUEST,
- BA_STATUS_ACTIVE,
-};
-
-/**
- * iwl4964_tl_ba_avail - Find out if an unused aggregation queue is available
- */
-static u8 iwl4964_tl_ba_avail(struct iwl4965_priv *priv)
-{
- int i;
- struct iwl4965_lq_mngr *lq;
- u8 count = 0;
- u16 msk;
-
- lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
-
- /* Find out how many agg queues are in use */
- for (i = 0; i < TID_MAX_LOAD_COUNT ; i++) {
- msk = 1 << i;
- if ((lq->agg_ctrl.granted_ba & msk) ||
- (lq->agg_ctrl.wait_for_agg_status & msk))
- count++;
- }
-
- if (count < MMAC_SCHED_MAX_NUMBER_OF_HT_BACK_FLOWS)
- return 1;
-
- return 0;
-}
-
-static void iwl4965_ba_status(struct iwl4965_priv *priv,
- u8 tid, enum HT_STATUS status);
-
-static int iwl4965_perform_addba(struct iwl4965_priv *priv, u8 tid, u32 length,
- u32 ba_timeout)
-{
- int rc;
-
- rc = ieee80211_start_BA_session(priv->hw, priv->bssid, tid);
- if (rc)
- iwl4965_ba_status(priv, tid, BA_STATUS_FAILURE);
-
- return rc;
-}
-
-static int iwl4965_perform_delba(struct iwl4965_priv *priv, u8 tid)
-{
- int rc;
-
- rc = ieee80211_stop_BA_session(priv->hw, priv->bssid, tid);
- if (rc)
- iwl4965_ba_status(priv, tid, BA_STATUS_FAILURE);
-
- return rc;
-}
-
-static void iwl4965_turn_on_agg_for_tid(struct iwl4965_priv *priv,
- struct iwl4965_lq_mngr *lq,
- u8 auto_agg, u8 tid)
-{
- u32 tid_msk = (1 << tid);
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
-/*
- if ((auto_agg) && (!lq->enable_counter)){
- lq->agg_ctrl.next_retry = 0;
- lq->agg_ctrl.tid_retry = 0;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- return;
- }
-*/
- if (!(lq->agg_ctrl.granted_ba & tid_msk) &&
- (lq->agg_ctrl.requested_ba & tid_msk)) {
- u8 available_queues;
- u32 load;
-
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- available_queues = iwl4964_tl_ba_avail(priv);
- load = iwl4965_tl_get_load(priv, tid);
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- if (!available_queues) {
- if (auto_agg)
- lq->agg_ctrl.tid_retry |= tid_msk;
- else {
- lq->agg_ctrl.requested_ba &= ~tid_msk;
- lq->agg_ctrl.wait_for_agg_status &= ~tid_msk;
- }
- } else if ((auto_agg) &&
- ((load <= lq->agg_ctrl.tid_traffic_load_threshold) ||
- ((lq->agg_ctrl.wait_for_agg_status & tid_msk))))
- lq->agg_ctrl.tid_retry |= tid_msk;
- else {
- lq->agg_ctrl.wait_for_agg_status |= tid_msk;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- iwl4965_perform_addba(priv, tid, 0x40,
- lq->agg_ctrl.ba_timeout);
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- }
- }
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
-}
-
-static void iwl4965_turn_on_agg(struct iwl4965_priv *priv, u8 tid)
-{
- struct iwl4965_lq_mngr *lq;
- unsigned long flags;
-
- lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
-
- if ((tid < TID_MAX_LOAD_COUNT))
- iwl4965_turn_on_agg_for_tid(priv, lq, lq->agg_ctrl.auto_agg,
- tid);
- else if (tid == TID_ALL_SPECIFIED) {
- if (lq->agg_ctrl.requested_ba) {
- for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++)
- iwl4965_turn_on_agg_for_tid(priv, lq,
- lq->agg_ctrl.auto_agg, tid);
- } else {
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- lq->agg_ctrl.tid_retry = 0;
- lq->agg_ctrl.next_retry = 0;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- }
- }
-
-}
-
-void iwl4965_turn_off_agg(struct iwl4965_priv *priv, u8 tid)
-{
- u32 tid_msk;
- struct iwl4965_lq_mngr *lq;
- unsigned long flags;
-
- lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
-
- if ((tid < TID_MAX_LOAD_COUNT)) {
- tid_msk = 1 << tid;
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- lq->agg_ctrl.wait_for_agg_status |= tid_msk;
- lq->agg_ctrl.requested_ba &= ~tid_msk;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- iwl4965_perform_delba(priv, tid);
- } else if (tid == TID_ALL_SPECIFIED) {
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++) {
- tid_msk = 1 << tid;
- lq->agg_ctrl.wait_for_agg_status |= tid_msk;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- iwl4965_perform_delba(priv, tid);
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- }
- lq->agg_ctrl.requested_ba = 0;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- }
-}
-
-/**
- * iwl4965_ba_status - Update driver's link quality mgr with tid's HT status
- */
-static void iwl4965_ba_status(struct iwl4965_priv *priv,
- u8 tid, enum HT_STATUS status)
-{
- struct iwl4965_lq_mngr *lq;
- u32 tid_msk = (1 << tid);
- unsigned long flags;
-
- lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
-
- if ((tid >= TID_MAX_LOAD_COUNT))
- goto out;
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- switch (status) {
- case BA_STATUS_ACTIVE:
- if (!(lq->agg_ctrl.granted_ba & tid_msk))
- lq->agg_ctrl.granted_ba |= tid_msk;
- break;
- default:
- if ((lq->agg_ctrl.granted_ba & tid_msk))
- lq->agg_ctrl.granted_ba &= ~tid_msk;
- break;
- }
-
- lq->agg_ctrl.wait_for_agg_status &= ~tid_msk;
- if (status != BA_STATUS_ACTIVE) {
- if (lq->agg_ctrl.auto_agg) {
- lq->agg_ctrl.tid_retry |= tid_msk;
- lq->agg_ctrl.next_retry =
- jiffies + msecs_to_jiffies(500);
- } else
- lq->agg_ctrl.requested_ba &= ~tid_msk;
- }
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- out:
- return;
-}
-
-static void iwl4965_bg_agg_work(struct work_struct *work)
-{
- struct iwl4965_priv *priv = container_of(work, struct iwl4965_priv,
- agg_work);
-
- u32 tid;
- u32 retry_tid;
- u32 tid_msk;
- unsigned long flags;
- struct iwl4965_lq_mngr *lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- retry_tid = lq->agg_ctrl.tid_retry;
- lq->agg_ctrl.tid_retry = 0;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
-
- if (retry_tid == TID_ALL_SPECIFIED)
- iwl4965_turn_on_agg(priv, TID_ALL_SPECIFIED);
- else {
- for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++) {
- tid_msk = (1 << tid);
- if (retry_tid & tid_msk)
- iwl4965_turn_on_agg(priv, tid);
- }
- }
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- if (lq->agg_ctrl.tid_retry)
- lq->agg_ctrl.next_retry = jiffies + msecs_to_jiffies(500);
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- return;
-}
-
-/* TODO: move this functionality to rate scaling */
-void iwl4965_tl_get_stats(struct iwl4965_priv *priv,
- struct ieee80211_hdr *hdr)
-{
- __le16 *qc = ieee80211_get_qos_ctrl(hdr);
-
- if (qc &&
- (priv->iw_mode != IEEE80211_IF_TYPE_IBSS)) {
- u8 tid = 0;
- tid = (u8) (le16_to_cpu(*qc) & 0xF);
- if (tid < TID_MAX_LOAD_COUNT)
- iwl4965_tl_add_packet(priv, tid);
- }
-
- if (priv->lq_mngr.agg_ctrl.next_retry &&
- (time_after(priv->lq_mngr.agg_ctrl.next_retry, jiffies))) {
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- priv->lq_mngr.agg_ctrl.next_retry = 0;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- schedule_work(&priv->agg_work);
- }
-}
-
-#endif /*CONFIG_IWL4965_HT_AGG */
-#endif /* CONFIG_IWL4965_HT */
-
/**
* sign_extend - Sign extend a value using specified bit as sign-bit
*
{
s8 signal = stats->ssi;
s8 noise = 0;
- int rate = stats->rate;
+ int rate = stats->rate_idx;
u64 tsf = stats->mactime;
__le16 phy_flags_hw = rx_start->phy_flags;
struct iwl4965_rt_rx_hdr {
IEEE80211_CHAN_2GHZ),
&iwl4965_rt->rt_chbitmask);
- rate = iwl4965_rate_index_from_plcp(rate);
if (rate == -1)
iwl4965_rt->rt_rate = 0;
else
return 0;
}
-void iwl4965_init_ht_hw_capab(struct ieee80211_ht_info *ht_info, int mode)
+void iwl4965_init_ht_hw_capab(struct ieee80211_ht_info *ht_info,
+ enum ieee80211_band band)
{
ht_info->cap = 0;
memset(ht_info->supp_mcs_set, 0, 16);
ht_info->ht_supported = 1;
- if (mode == MODE_IEEE80211A) {
+ if (band == IEEE80211_BAND_5GHZ) {
ht_info->cap |= (u16)IEEE80211_HT_CAP_SUP_WIDTH;
ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_40;
ht_info->supp_mcs_set[4] = 0x01;
}
}
}
+#ifdef CONFIG_IWL4965_DEBUG
+
+/**
+ * iwl4965_dbg_report_frame - dump frame to syslog during debug sessions
+ *
+ * You may hack this function to show different aspects of received frames,
+ * including selective frame dumps.
+ * group100 parameter selects whether to show 1 out of 100 good frames.
+ *
+ * TODO: This was originally written for 3945, need to audit for
+ * proper operation with 4965.
+ */
+static void iwl4965_dbg_report_frame(struct iwl4965_priv *priv,
+ struct iwl4965_rx_packet *pkt,
+ struct ieee80211_hdr *header, int group100)
+{
+ u32 to_us;
+ u32 print_summary = 0;
+ u32 print_dump = 0; /* set to 1 to dump all frames' contents */
+ u32 hundred = 0;
+ u32 dataframe = 0;
+ u16 fc;
+ u16 seq_ctl;
+ u16 channel;
+ u16 phy_flags;
+ int rate_sym;
+ u16 length;
+ u16 status;
+ u16 bcn_tmr;
+ u32 tsf_low;
+ u64 tsf;
+ u8 rssi;
+ u8 agc;
+ u16 sig_avg;
+ u16 noise_diff;
+ struct iwl4965_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
+ struct iwl4965_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
+ struct iwl4965_rx_frame_end *rx_end = IWL_RX_END(pkt);
+ u8 *data = IWL_RX_DATA(pkt);
+
+ if (likely(!(iwl4965_debug_level & IWL_DL_RX)))
+ return;
+
+ /* MAC header */
+ fc = le16_to_cpu(header->frame_control);
+ seq_ctl = le16_to_cpu(header->seq_ctrl);
+
+ /* metadata */
+ channel = le16_to_cpu(rx_hdr->channel);
+ phy_flags = le16_to_cpu(rx_hdr->phy_flags);
+ rate_sym = rx_hdr->rate;
+ length = le16_to_cpu(rx_hdr->len);
+
+ /* end-of-frame status and timestamp */
+ status = le32_to_cpu(rx_end->status);
+ bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp);
+ tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff;
+ tsf = le64_to_cpu(rx_end->timestamp);
+
+ /* signal statistics */
+ rssi = rx_stats->rssi;
+ agc = rx_stats->agc;
+ sig_avg = le16_to_cpu(rx_stats->sig_avg);
+ noise_diff = le16_to_cpu(rx_stats->noise_diff);
+
+ to_us = !compare_ether_addr(header->addr1, priv->mac_addr);
+
+ /* if data frame is to us and all is good,
+ * (optionally) print summary for only 1 out of every 100 */
+ if (to_us && (fc & ~IEEE80211_FCTL_PROTECTED) ==
+ (IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) {
+ dataframe = 1;
+ if (!group100)
+ print_summary = 1; /* print each frame */
+ else if (priv->framecnt_to_us < 100) {
+ priv->framecnt_to_us++;
+ print_summary = 0;
+ } else {
+ priv->framecnt_to_us = 0;
+ print_summary = 1;
+ hundred = 1;
+ }
+ } else {
+ /* print summary for all other frames */
+ print_summary = 1;
+ }
+
+ if (print_summary) {
+ char *title;
+ int rate_idx;
+ u32 bitrate;
+
+ if (hundred)
+ title = "100Frames";
+ else if (fc & IEEE80211_FCTL_RETRY)
+ title = "Retry";
+ else if (ieee80211_is_assoc_response(fc))
+ title = "AscRsp";
+ else if (ieee80211_is_reassoc_response(fc))
+ title = "RasRsp";
+ else if (ieee80211_is_probe_response(fc)) {
+ title = "PrbRsp";
+ print_dump = 1; /* dump frame contents */
+ } else if (ieee80211_is_beacon(fc)) {
+ title = "Beacon";
+ print_dump = 1; /* dump frame contents */
+ } else if (ieee80211_is_atim(fc))
+ title = "ATIM";
+ else if (ieee80211_is_auth(fc))
+ title = "Auth";
+ else if (ieee80211_is_deauth(fc))
+ title = "DeAuth";
+ else if (ieee80211_is_disassoc(fc))
+ title = "DisAssoc";
+ else
+ title = "Frame";
+
+ rate_idx = iwl4965_hwrate_to_plcp_idx(rate_sym);
+ if (unlikely(rate_idx == -1))
+ bitrate = 0;
+ else
+ bitrate = iwl4965_rates[rate_idx].ieee / 2;
+
+ /* print frame summary.
+ * MAC addresses show just the last byte (for brevity),
+ * but you can hack it to show more, if you'd like to. */
+ if (dataframe)
+ IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, "
+ "len=%u, rssi=%d, chnl=%d, rate=%u, \n",
+ title, fc, header->addr1[5],
+ length, rssi, channel, bitrate);
+ else {
+ /* src/dst addresses assume managed mode */
+ IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, "
+ "src=0x%02x, rssi=%u, tim=%lu usec, "
+ "phy=0x%02x, chnl=%d\n",
+ title, fc, header->addr1[5],
+ header->addr3[5], rssi,
+ tsf_low - priv->scan_start_tsf,
+ phy_flags, channel);
+ }
+ }
+ if (print_dump)
+ iwl4965_print_hex_dump(IWL_DL_RX, data, length);
+}
+#else
+static inline void iwl4965_dbg_report_frame(struct iwl4965_priv *priv,
+ struct iwl4965_rx_packet *pkt,
+ struct ieee80211_hdr *header,
+ int group100)
+{
+}
+#endif
+
#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
static void iwl4965_rx_reply_rx(struct iwl4965_priv *priv,
struct iwl4965_rx_mem_buffer *rxb)
{
+ struct ieee80211_hdr *header;
+ struct ieee80211_rx_status rx_status;
struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
/* Use phy data (Rx signal strength, etc.) contained within
* this rx packet for legacy frames,
(struct iwl4965_rx_phy_res *)&priv->last_phy_res[1];
__le32 *rx_end;
unsigned int len = 0;
- struct ieee80211_hdr *header;
u16 fc;
- struct ieee80211_rx_status stats = {
- .mactime = le64_to_cpu(rx_start->timestamp),
- .channel = le16_to_cpu(rx_start->channel),
- .phymode =
- (rx_start->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
- MODE_IEEE80211G : MODE_IEEE80211A,
- .antenna = 0,
- .rate = iwl4965_hw_get_rate(rx_start->rate_n_flags),
- .flag = 0,
- };
u8 network_packet;
+ rx_status.mactime = le64_to_cpu(rx_start->timestamp);
+ rx_status.freq = ieee80211chan2mhz(le16_to_cpu(rx_start->channel));
+ rx_status.band = (rx_start->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
+ IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
+ rx_status.rate_idx = iwl4965_hwrate_to_plcp_idx(
+ le32_to_cpu(rx_start->rate_n_flags));
+
+ if (rx_status.band == IEEE80211_BAND_5GHZ)
+ rx_status.rate_idx -= IWL_FIRST_OFDM_RATE;
+
+ rx_status.antenna = 0;
+ rx_status.flag = 0;
+
if ((unlikely(rx_start->cfg_phy_cnt > 20))) {
IWL_DEBUG_DROP
("dsp size out of range [0,20]: "
"%d/n", rx_start->cfg_phy_cnt);
return;
}
+
if (!include_phy) {
if (priv->last_phy_res[0])
rx_start = (struct iwl4965_rx_phy_res *)
+ rx_start->cfg_phy_cnt);
len = le16_to_cpu(rx_start->byte_count);
- rx_end = (__le32 *) (pkt->u.raw + rx_start->cfg_phy_cnt +
+ rx_end = (__le32 *)(pkt->u.raw + rx_start->cfg_phy_cnt +
sizeof(struct iwl4965_rx_phy_res) + len);
} else {
struct iwl4965_rx_mpdu_res_start *amsdu =
priv->ucode_beacon_time = le32_to_cpu(rx_start->beacon_time_stamp);
- stats.freq = ieee80211chan2mhz(stats.channel);
-
/* Find max signal strength (dBm) among 3 antenna/receiver chains */
- stats.ssi = iwl4965_calc_rssi(rx_start);
+ rx_status.ssi = iwl4965_calc_rssi(rx_start);
/* Meaningful noise values are available only from beacon statistics,
* which are gathered only when associated, and indicate noise
* Ignore these noise values while scanning (other channels) */
if (iwl4965_is_associated(priv) &&
!test_bit(STATUS_SCANNING, &priv->status)) {
- stats.noise = priv->last_rx_noise;
- stats.signal = iwl4965_calc_sig_qual(stats.ssi, stats.noise);
+ rx_status.noise = priv->last_rx_noise;
+ rx_status.signal = iwl4965_calc_sig_qual(rx_status.ssi,
+ rx_status.noise);
} else {
- stats.noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
- stats.signal = iwl4965_calc_sig_qual(stats.ssi, 0);
+ rx_status.noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
+ rx_status.signal = iwl4965_calc_sig_qual(rx_status.ssi, 0);
}
/* Reset beacon noise level if not associated. */
if (!iwl4965_is_associated(priv))
priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
-#ifdef CONFIG_IWL4965_DEBUG
- /* TODO: Parts of iwl4965_report_frame are broken for 4965 */
- if (iwl4965_debug_level & (IWL_DL_RX))
- /* Set "1" to report good data frames in groups of 100 */
- iwl4965_report_frame(priv, pkt, header, 1);
-
- if (iwl4965_debug_level & (IWL_DL_RX | IWL_DL_STATS))
- IWL_DEBUG_RX("Rssi %d, noise %d, qual %d, TSF %lu\n",
- stats.ssi, stats.noise, stats.signal,
- (long unsigned int)le64_to_cpu(rx_start->timestamp));
-#endif
+ /* Set "1" to report good data frames in groups of 100 */
+ /* FIXME: need to optimze the call: */
+ iwl4965_dbg_report_frame(priv, pkt, header, 1);
+
+ IWL_DEBUG_STATS_LIMIT("Rssi %d, noise %d, qual %d, TSF %llu\n",
+ rx_status.ssi, rx_status.noise, rx_status.signal,
+ rx_status.mactime);
network_packet = iwl4965_is_network_packet(priv, header);
if (network_packet) {
- priv->last_rx_rssi = stats.ssi;
+ priv->last_rx_rssi = rx_status.ssi;
priv->last_beacon_time = priv->ucode_beacon_time;
priv->last_tsf = le64_to_cpu(rx_start->timestamp);
}
return;
}
}
- iwl4965_handle_data_packet(priv, 0, include_phy, rxb, &stats);
+ iwl4965_handle_data_packet(priv, 0, include_phy, rxb, &rx_status);
break;
case IEEE80211_FTYPE_CTL:
case IEEE80211_STYPE_BACK_REQ:
IWL_DEBUG_HT("IEEE80211_STYPE_BACK_REQ arrived\n");
iwl4965_handle_data_packet(priv, 0, include_phy,
- rxb, &stats);
+ rxb, &rx_status);
break;
default:
break;
print_mac(mac3, header->addr3));
else
iwl4965_handle_data_packet(priv, 1, include_phy, rxb,
- &stats);
+ &rx_status);
break;
}
default:
}
#ifdef CONFIG_IWL4965_HT
-#ifdef CONFIG_IWL4965_HT_AGG
-
-/**
- * iwl4965_set_tx_status - Update driver's record of one Tx frame's status
- *
- * This will get sent to mac80211.
- */
-static void iwl4965_set_tx_status(struct iwl4965_priv *priv, int txq_id, int idx,
- u32 status, u32 retry_count, u32 rate)
-{
- struct ieee80211_tx_status *tx_status =
- &(priv->txq[txq_id].txb[idx].status);
-
- tx_status->flags = status ? IEEE80211_TX_STATUS_ACK : 0;
- tx_status->retry_count += retry_count;
- tx_status->control.tx_rate = rate;
-}
-
/**
* iwl4965_sta_modify_enable_tid_tx - Enable Tx for this TID in station table
iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
}
-
/**
* iwl4965_tx_status_reply_compressed_ba - Update tx status from block-ack
*
{
int i, sh, ack;
- u16 ba_seq_ctl = le16_to_cpu(ba_resp->ba_seq_ctl);
- u32 bitmap0, bitmap1;
- u32 resp_bitmap0 = le32_to_cpu(ba_resp->ba_bitmap0);
- u32 resp_bitmap1 = le32_to_cpu(ba_resp->ba_bitmap1);
+ u16 seq_ctl = le16_to_cpu(ba_resp->seq_ctl);
+ u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
+ u64 bitmap;
+ int successes = 0;
+ struct ieee80211_tx_status *tx_status;
if (unlikely(!agg->wait_for_ba)) {
IWL_ERROR("Received BA when not expected\n");
/* Mark that the expected block-ack response arrived */
agg->wait_for_ba = 0;
- IWL_DEBUG_TX_REPLY("BA %d %d\n", agg->start_idx, ba_resp->ba_seq_ctl);
+ IWL_DEBUG_TX_REPLY("BA %d %d\n", agg->start_idx, ba_resp->seq_ctl);
/* Calculate shift to align block-ack bits with our Tx window bits */
- sh = agg->start_idx - SEQ_TO_INDEX(ba_seq_ctl >> 4);
+ sh = agg->start_idx - SEQ_TO_INDEX(seq_ctl>>4);
if (sh < 0) /* tbw something is wrong with indices */
sh += 0x100;
/* don't use 64-bit values for now */
- bitmap0 = resp_bitmap0 >> sh;
- bitmap1 = resp_bitmap1 >> sh;
- bitmap0 |= (resp_bitmap1 & ((1 << sh) | ((1 << sh) - 1))) << (32 - sh);
+ bitmap = le64_to_cpu(ba_resp->bitmap) >> sh;
if (agg->frame_count > (64 - sh)) {
IWL_DEBUG_TX_REPLY("more frames than bitmap size");
/* check for success or failure according to the
* transmitted bitmap and block-ack bitmap */
- bitmap0 &= agg->bitmap0;
- bitmap1 &= agg->bitmap1;
+ bitmap &= agg->bitmap;
/* For each frame attempted in aggregation,
* update driver's record of tx frame's status. */
for (i = 0; i < agg->frame_count ; i++) {
- int idx = (agg->start_idx + i) & 0xff;
- ack = bitmap0 & (1 << i);
+ ack = bitmap & (1 << i);
+ successes += !!ack;
IWL_DEBUG_TX_REPLY("%s ON i=%d idx=%d raw=%d\n",
- ack? "ACK":"NACK", i, idx, agg->start_idx + i);
- iwl4965_set_tx_status(priv, agg->txq_id, idx, ack, 0,
- agg->rate_n_flags);
+ ack? "ACK":"NACK", i, (agg->start_idx + i) & 0xff,
+ agg->start_idx + i);
+ }
+
+ tx_status = &priv->txq[scd_flow].txb[agg->start_idx].status;
+ tx_status->flags = IEEE80211_TX_STATUS_ACK;
+ tx_status->flags |= IEEE80211_TX_STATUS_AMPDU;
+ tx_status->ampdu_ack_map = successes;
+ tx_status->ampdu_ack_len = agg->frame_count;
+ iwl4965_hwrate_to_tx_control(priv, agg->rate_n_flags,
+ &tx_status->control);
+
+ IWL_DEBUG_TX_REPLY("Bitmap %llx\n", (unsigned long long)bitmap);
+
+ return 0;
+}
+
+/**
+ * iwl4965_tx_queue_stop_scheduler - Stop queue, but keep configuration
+ */
+static void iwl4965_tx_queue_stop_scheduler(struct iwl4965_priv *priv,
+ u16 txq_id)
+{
+ /* Simply stop the queue, but don't change any configuration;
+ * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */
+ iwl4965_write_prph(priv,
+ KDR_SCD_QUEUE_STATUS_BITS(txq_id),
+ (0 << SCD_QUEUE_STTS_REG_POS_ACTIVE)|
+ (1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
+}
+
+/**
+ * txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID
+ * priv->lock must be held by the caller
+ */
+static int iwl4965_tx_queue_agg_disable(struct iwl4965_priv *priv, u16 txq_id,
+ u16 ssn_idx, u8 tx_fifo)
+{
+ int ret = 0;
+ if (IWL_BACK_QUEUE_FIRST_ID > txq_id) {
+ IWL_WARNING("queue number too small: %d, must be > %d\n",
+ txq_id, IWL_BACK_QUEUE_FIRST_ID);
+ return -EINVAL;
}
- IWL_DEBUG_TX_REPLY("Bitmap %x%x\n", bitmap0, bitmap1);
+ ret = iwl4965_grab_nic_access(priv);
+ if (ret)
+ return ret;
+ iwl4965_tx_queue_stop_scheduler(priv, txq_id);
+
+ iwl4965_clear_bits_prph(priv, KDR_SCD_QUEUECHAIN_SEL, (1 << txq_id));
+
+ priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
+ priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
+ /* supposes that ssn_idx is valid (!= 0xFFF) */
+ iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
+
+ iwl4965_clear_bits_prph(priv, KDR_SCD_INTERRUPT_MASK, (1 << txq_id));
+ iwl4965_txq_ctx_deactivate(priv, txq_id);
+ iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
+
+ iwl4965_release_nic_access(priv);
+
+ return 0;
+}
+
+int iwl4965_check_empty_hw_queue(struct iwl4965_priv *priv, int sta_id,
+ u8 tid, int txq_id)
+{
+ struct iwl4965_queue *q = &priv->txq[txq_id].q;
+ u8 *addr = priv->stations[sta_id].sta.sta.addr;
+ struct iwl4965_tid_data *tid_data = &priv->stations[sta_id].tid[tid];
+
+ switch (priv->stations[sta_id].tid[tid].agg.state) {
+ case IWL_EMPTYING_HW_QUEUE_DELBA:
+ /* We are reclaiming the last packet of the */
+ /* aggregated HW queue */
+ if (txq_id == tid_data->agg.txq_id &&
+ q->read_ptr == q->write_ptr) {
+ u16 ssn = SEQ_TO_SN(tid_data->seq_number);
+ int tx_fifo = default_tid_to_tx_fifo[tid];
+ IWL_DEBUG_HT("HW queue empty: continue DELBA flow\n");
+ iwl4965_tx_queue_agg_disable(priv, txq_id,
+ ssn, tx_fifo);
+ tid_data->agg.state = IWL_AGG_OFF;
+ ieee80211_stop_tx_ba_cb_irqsafe(priv->hw, addr, tid);
+ }
+ break;
+ case IWL_EMPTYING_HW_QUEUE_ADDBA:
+ /* We are reclaiming the last packet of the queue */
+ if (tid_data->tfds_in_queue == 0) {
+ IWL_DEBUG_HT("HW queue empty: continue ADDBA flow\n");
+ tid_data->agg.state = IWL_AGG_ON;
+ ieee80211_start_tx_ba_cb_irqsafe(priv->hw, addr, tid);
+ }
+ break;
+ }
return 0;
}
int index;
struct iwl4965_tx_queue *txq = NULL;
struct iwl4965_ht_agg *agg;
+ DECLARE_MAC_BUF(mac);
/* "flow" corresponds to Tx queue */
- u16 ba_resp_scd_flow = le16_to_cpu(ba_resp->scd_flow);
+ u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
/* "ssn" is start of block-ack Tx window, corresponds to index
* (in Tx queue's circular buffer) of first TFD/frame in window */
u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn);
- if (ba_resp_scd_flow >= ARRAY_SIZE(priv->txq)) {
+ if (scd_flow >= ARRAY_SIZE(priv->txq)) {
IWL_ERROR("BUG_ON scd_flow is bigger than number of queues");
return;
}
- txq = &priv->txq[ba_resp_scd_flow];
+ txq = &priv->txq[scd_flow];
agg = &priv->stations[ba_resp->sta_id].tid[ba_resp->tid].agg;
/* Find index just before block-ack window */
index = iwl4965_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
/* TODO: Need to get this copy more safely - now good for debug */
-/*
- {
- DECLARE_MAC_BUF(mac);
+
IWL_DEBUG_TX_REPLY("REPLY_COMPRESSED_BA [%d]Received from %s, "
"sta_id = %d\n",
agg->wait_for_ba,
print_mac(mac, (u8*) &ba_resp->sta_addr_lo32),
ba_resp->sta_id);
- IWL_DEBUG_TX_REPLY("TID = %d, SeqCtl = %d, bitmap = 0x%X%X, scd_flow = "
+ IWL_DEBUG_TX_REPLY("TID = %d, SeqCtl = %d, bitmap = 0x%llx, scd_flow = "
"%d, scd_ssn = %d\n",
ba_resp->tid,
- ba_resp->ba_seq_ctl,
- ba_resp->ba_bitmap1,
- ba_resp->ba_bitmap0,
+ ba_resp->seq_ctl,
+ (unsigned long long)ba_resp->bitmap,
ba_resp->scd_flow,
ba_resp->scd_ssn);
- IWL_DEBUG_TX_REPLY("DAT start_idx = %d, bitmap = 0x%X%X \n",
+ IWL_DEBUG_TX_REPLY("DAT start_idx = %d, bitmap = 0x%llx \n",
agg->start_idx,
- agg->bitmap1,
- agg->bitmap0);
- }
-*/
+ (unsigned long long)agg->bitmap);
/* Update driver's record of ACK vs. not for each frame in window */
iwl4965_tx_status_reply_compressed_ba(priv, agg, ba_resp);
/* Release all TFDs before the SSN, i.e. all TFDs in front of
* block-ack window (we assume that they've been successfully
* transmitted ... if not, it's too late anyway). */
- if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff))
- iwl4965_tx_queue_reclaim(priv, ba_resp_scd_flow, index);
-
-}
-
-
-/**
- * iwl4965_tx_queue_stop_scheduler - Stop queue, but keep configuration
- */
-static void iwl4965_tx_queue_stop_scheduler(struct iwl4965_priv *priv, u16 txq_id)
-{
- /* Simply stop the queue, but don't change any configuration;
- * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */
- iwl4965_write_prph(priv,
- KDR_SCD_QUEUE_STATUS_BITS(txq_id),
- (0 << SCD_QUEUE_STTS_REG_POS_ACTIVE)|
- (1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
+ if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) {
+ int freed = iwl4965_tx_queue_reclaim(priv, scd_flow, index);
+ priv->stations[ba_resp->sta_id].
+ tid[ba_resp->tid].tfds_in_queue -= freed;
+ if (iwl4965_queue_space(&txq->q) > txq->q.low_mark &&
+ priv->mac80211_registered &&
+ agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)
+ ieee80211_wake_queue(priv->hw, scd_flow);
+ iwl4965_check_empty_hw_queue(priv, ba_resp->sta_id,
+ ba_resp->tid, scd_flow);
+ }
}
/**
return 0;
}
+
/**
* iwl4965_tx_queue_agg_enable - Set up & enable aggregation for selected queue
*
return 0;
}
-/**
- * txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID
- */
-static int iwl4965_tx_queue_agg_disable(struct iwl4965_priv *priv, u16 txq_id,
- u16 ssn_idx, u8 tx_fifo)
-{
- unsigned long flags;
- int rc;
-
- if (IWL_BACK_QUEUE_FIRST_ID > txq_id) {
- IWL_WARNING("queue number too small: %d, must be > %d\n",
- txq_id, IWL_BACK_QUEUE_FIRST_ID);
- return -EINVAL;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
- rc = iwl4965_grab_nic_access(priv);
- if (rc) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
- }
-
- iwl4965_tx_queue_stop_scheduler(priv, txq_id);
-
- iwl4965_clear_bits_prph(priv, KDR_SCD_QUEUECHAIN_SEL, (1 << txq_id));
-
- priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
- priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
- /* supposes that ssn_idx is valid (!= 0xFFF) */
- iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
-
- iwl4965_clear_bits_prph(priv, KDR_SCD_INTERRUPT_MASK, (1 << txq_id));
- iwl4965_txq_ctx_deactivate(priv, txq_id);
- iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
-
- iwl4965_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return 0;
-}
-
-#endif/* CONFIG_IWL4965_HT_AGG */
#endif /* CONFIG_IWL4965_HT */
/**
* all the way down to 1M in IEEE order, and then spin on 1M */
if (is_ap)
r = IWL_RATE_54M_INDEX;
- else if (priv->phymode == MODE_IEEE80211A)
+ else if (priv->band == IEEE80211_BAND_5GHZ)
r = IWL_RATE_6M_INDEX;
else
r = IWL_RATE_1M_INDEX;
link_cmd.agg_params.agg_time_limit = cpu_to_le16(4000);
/* Update the rate scaling for control frame Tx to AP */
- link_cmd.sta_id = is_ap ? IWL_AP_ID : IWL4965_BROADCAST_ID;
+ link_cmd.sta_id = is_ap ? IWL_AP_ID : priv->hw_setting.bcast_sta_id;
iwl4965_send_cmd_pdu(priv, REPLY_TX_LINK_QUALITY_CMD, sizeof(link_cmd),
&link_cmd);
#ifdef CONFIG_IWL4965_HT
-static u8 iwl4965_is_channel_extension(struct iwl4965_priv *priv, int phymode,
- u16 channel, u8 extension_chan_offset)
+static u8 iwl4965_is_channel_extension(struct iwl4965_priv *priv,
+ enum ieee80211_band band,
+ u16 channel, u8 extension_chan_offset)
{
const struct iwl4965_channel_info *ch_info;
- ch_info = iwl4965_get_channel_info(priv, phymode, channel);
+ ch_info = iwl4965_get_channel_info(priv, band, channel);
if (!is_channel_valid(ch_info))
return 0;
- if (extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_AUTO)
+ if (extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_NONE)
return 0;
if ((ch_info->fat_extension_channel == extension_chan_offset) ||
if ((!iwl_ht_conf->is_ht) ||
(iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) ||
- (iwl_ht_conf->extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_AUTO))
+ (iwl_ht_conf->extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_NONE))
return 0;
if (sta_ht_inf) {
if ((!sta_ht_inf->ht_supported) ||
- (!sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH))
+ (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH)))
return 0;
}
- return (iwl4965_is_channel_extension(priv, priv->phymode,
+ return (iwl4965_is_channel_extension(priv, priv->band,
iwl_ht_conf->control_channel,
iwl_ht_conf->extension_chan_offset));
}
case IWL_EXT_CHANNEL_OFFSET_BELOW:
rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
break;
- case IWL_EXT_CHANNEL_OFFSET_AUTO:
- rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK;
- break;
+ case IWL_EXT_CHANNEL_OFFSET_NONE:
default:
rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK;
break;
iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
}
-#ifdef CONFIG_IWL4965_HT_AGG
-
-static const u16 default_tid_to_tx_fifo[] = {
- IWL_TX_FIFO_AC1,
- IWL_TX_FIFO_AC0,
- IWL_TX_FIFO_AC0,
- IWL_TX_FIFO_AC1,
- IWL_TX_FIFO_AC2,
- IWL_TX_FIFO_AC2,
- IWL_TX_FIFO_AC3,
- IWL_TX_FIFO_AC3,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_AC3
-};
-
/*
* Find first available (lowest unused) Tx Queue, mark it "active".
* Called only when finding queue for aggregation.
return -1;
}
-int iwl4965_mac_ht_tx_agg_start(struct ieee80211_hw *hw, u8 *da, u16 tid,
- u16 *start_seq_num)
+static int iwl4965_mac_ht_tx_agg_start(struct ieee80211_hw *hw, const u8 *da,
+ u16 tid, u16 *start_seq_num)
{
-
struct iwl4965_priv *priv = hw->priv;
int sta_id;
int tx_fifo;
int txq_id;
int ssn = -1;
+ int ret = 0;
unsigned long flags;
struct iwl4965_tid_data *tid_data;
DECLARE_MAC_BUF(mac);
- /* Determine Tx DMA/FIFO channel for this Traffic ID */
if (likely(tid < ARRAY_SIZE(default_tid_to_tx_fifo)))
tx_fifo = default_tid_to_tx_fifo[tid];
else
return -EINVAL;
- IWL_WARNING("iwl-AGG iwl4965_mac_ht_tx_agg_start on da=%s"
- " tid=%d\n", print_mac(mac, da), tid);
+ IWL_WARNING("%s on da = %s tid = %d\n",
+ __func__, print_mac(mac, da), tid);
- /* Get index into station table */
sta_id = iwl4965_hw_find_station(priv, da);
if (sta_id == IWL_INVALID_STATION)
return -ENXIO;
- /* Find available Tx queue for aggregation */
+ if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_OFF) {
+ IWL_ERROR("Start AGG when state is not IWL_AGG_OFF !\n");
+ return -ENXIO;
+ }
+
txq_id = iwl4965_txq_ctx_activate_free(priv);
if (txq_id == -1)
return -ENXIO;
spin_lock_irqsave(&priv->sta_lock, flags);
tid_data = &priv->stations[sta_id].tid[tid];
-
- /* Get starting sequence number for 1st frame in block ack window.
- * We'll use least signif byte as 1st frame's index into Tx queue. */
ssn = SEQ_TO_SN(tid_data->seq_number);
tid_data->agg.txq_id = txq_id;
spin_unlock_irqrestore(&priv->sta_lock, flags);
*start_seq_num = ssn;
+ ret = iwl4965_tx_queue_agg_enable(priv, txq_id, tx_fifo,
+ sta_id, tid, ssn);
+ if (ret)
+ return ret;
- /* Update driver's link quality manager */
- iwl4965_ba_status(priv, tid, BA_STATUS_ACTIVE);
-
- /* Set up and enable aggregation for selected Tx queue and FIFO */
- return iwl4965_tx_queue_agg_enable(priv, txq_id, tx_fifo,
- sta_id, tid, ssn);
+ ret = 0;
+ if (tid_data->tfds_in_queue == 0) {
+ printk(KERN_ERR "HW queue is empty\n");
+ tid_data->agg.state = IWL_AGG_ON;
+ ieee80211_start_tx_ba_cb_irqsafe(hw, da, tid);
+ } else {
+ IWL_DEBUG_HT("HW queue is NOT empty: %d packets in HW queue\n",
+ tid_data->tfds_in_queue);
+ tid_data->agg.state = IWL_EMPTYING_HW_QUEUE_ADDBA;
+ }
+ return ret;
}
-
-int iwl4965_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, u8 *da, u16 tid)
+static int iwl4965_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, const u8 *da,
+ u16 tid)
{
struct iwl4965_priv *priv = hw->priv;
int tx_fifo_id, txq_id, sta_id, ssn = -1;
struct iwl4965_tid_data *tid_data;
- int rc;
+ int ret, write_ptr, read_ptr;
+ unsigned long flags;
DECLARE_MAC_BUF(mac);
if (!da) {
- IWL_ERROR("%s: da = NULL\n", __func__);
+ IWL_ERROR("da = NULL\n");
return -EINVAL;
}
if (sta_id == IWL_INVALID_STATION)
return -ENXIO;
+ if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_ON)
+ IWL_WARNING("Stopping AGG while state not IWL_AGG_ON\n");
+
tid_data = &priv->stations[sta_id].tid[tid];
ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4;
txq_id = tid_data->agg.txq_id;
+ write_ptr = priv->txq[txq_id].q.write_ptr;
+ read_ptr = priv->txq[txq_id].q.read_ptr;
+
+ /* The queue is not empty */
+ if (write_ptr != read_ptr) {
+ IWL_DEBUG_HT("Stopping a non empty AGG HW QUEUE\n");
+ priv->stations[sta_id].tid[tid].agg.state =
+ IWL_EMPTYING_HW_QUEUE_DELBA;
+ return 0;
+ }
- rc = iwl4965_tx_queue_agg_disable(priv, txq_id, ssn, tx_fifo_id);
- /* FIXME: need more safe way to handle error condition */
- if (rc)
- return rc;
-
- iwl4965_ba_status(priv, tid, BA_STATUS_INITIATOR_DELBA);
- IWL_DEBUG_INFO("iwl4965_mac_ht_tx_agg_stop on da=%s tid=%d\n",
- print_mac(mac, da), tid);
+ IWL_DEBUG_HT("HW queue empty\n");;
+ priv->stations[sta_id].tid[tid].agg.state = IWL_AGG_OFF;
- return 0;
-}
+ spin_lock_irqsave(&priv->lock, flags);
+ ret = iwl4965_tx_queue_agg_disable(priv, txq_id, ssn, tx_fifo_id);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ if (ret)
+ return ret;
-#endif /* CONFIG_IWL4965_HT_AGG */
+ ieee80211_stop_tx_ba_cb_irqsafe(priv->hw, da, tid);
-int iwl4965_mac_ht_tx_agg_start(struct ieee80211_hw *hw, const u8 *da, u16 tid,
- u16 *start_seq_num)
-{
- return 0;
-}
+ IWL_DEBUG_INFO("iwl4965_mac_ht_tx_agg_stop on da=%s tid=%d\n",
+ print_mac(mac, da), tid);
-int iwl4965_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, const u8 *da, u16 tid)
-{
return 0;
}
iwl4965_rx_missed_beacon_notif;
#ifdef CONFIG_IWL4965_HT
-#ifdef CONFIG_IWL4965_HT_AGG
priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl4965_rx_reply_compressed_ba;
-#endif /* CONFIG_IWL4965_HT_AGG */
#endif /* CONFIG_IWL4965_HT */
}
#ifdef CONFIG_IWL4965_SENSITIVITY
INIT_WORK(&priv->sensitivity_work, iwl4965_bg_sensitivity_work);
#endif
-#ifdef CONFIG_IWL4965_HT
-#ifdef CONFIG_IWL4965_HT_AGG
- INIT_WORK(&priv->agg_work, iwl4965_bg_agg_work);
-#endif /* CONFIG_IWL4965_HT_AGG */
-#endif /* CONFIG_IWL4965_HT */
init_timer(&priv->statistics_periodic);
priv->statistics_periodic.data = (unsigned long)priv;
priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
cancel_delayed_work(&priv->init_alive_start);
}
+static struct iwl_cfg iwl4965_agn_cfg = {
+ .name = "4965AGN",
+ .fw_name = "iwlwifi-4965" IWL4965_UCODE_API ".ucode",
+ .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
+};
+
struct pci_device_id iwl4965_hw_card_ids[] = {
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4229)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4230)},
+ {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
+ {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},
{0}
};
projects / firefly-linux-kernel-4.4.55.git / blobdiff