*/
static bool bt_coex_active = true;
module_param(bt_coex_active, bool, S_IRUGO);
-MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist\n");
+MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist");
static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
{COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP,
u32 iwl_debug_level;
EXPORT_SYMBOL(iwl_debug_level);
-static irqreturn_t iwl_isr(int irq, void *data);
-
/*
* Parameter order:
* rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
};
EXPORT_SYMBOL(iwl_rates);
-/**
- * translate ucode response to mac80211 tx status control values
- */
-void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
- struct ieee80211_tx_info *info)
-{
- struct ieee80211_tx_rate *r = &info->control.rates[0];
-
- info->antenna_sel_tx =
- ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
- if (rate_n_flags & RATE_MCS_HT_MSK)
- r->flags |= IEEE80211_TX_RC_MCS;
- if (rate_n_flags & RATE_MCS_GF_MSK)
- r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
- if (rate_n_flags & RATE_MCS_HT40_MSK)
- r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
- if (rate_n_flags & RATE_MCS_DUP_MSK)
- r->flags |= IEEE80211_TX_RC_DUP_DATA;
- if (rate_n_flags & RATE_MCS_SGI_MSK)
- r->flags |= IEEE80211_TX_RC_SHORT_GI;
- r->idx = iwl_hwrate_to_mac80211_idx(rate_n_flags, info->band);
-}
-EXPORT_SYMBOL(iwl_hwrate_to_tx_control);
-
int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
{
int idx = 0;
}
EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx);
-int iwl_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band)
-{
- int idx = 0;
- int band_offset = 0;
-
- /* HT rate format: mac80211 wants an MCS number, which is just LSB */
- if (rate_n_flags & RATE_MCS_HT_MSK) {
- idx = (rate_n_flags & 0xff);
- return idx;
- /* Legacy rate format, search for match in table */
- } else {
- if (band == IEEE80211_BAND_5GHZ)
- band_offset = IWL_FIRST_OFDM_RATE;
- for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)
- if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
- return idx - band_offset;
- }
-
- return -1;
-}
-
u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant)
{
int i;
}
EXPORT_SYMBOL(iwl_hw_detect);
-int iwl_hw_nic_init(struct iwl_priv *priv)
-{
- unsigned long flags;
- struct iwl_rx_queue *rxq = &priv->rxq;
- int ret;
-
- /* nic_init */
- spin_lock_irqsave(&priv->lock, flags);
- priv->cfg->ops->lib->apm_ops.init(priv);
-
- /* Set interrupt coalescing calibration timer to default (512 usecs) */
- iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_CALIB_TIMEOUT_DEF);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN);
-
- priv->cfg->ops->lib->apm_ops.config(priv);
-
- /* Allocate the RX queue, or reset if it is already allocated */
- if (!rxq->bd) {
- ret = iwl_rx_queue_alloc(priv);
- if (ret) {
- IWL_ERR(priv, "Unable to initialize Rx queue\n");
- return -ENOMEM;
- }
- } else
- iwl_rx_queue_reset(priv, rxq);
-
- iwl_rx_replenish(priv);
-
- iwl_rx_init(priv, rxq);
-
- spin_lock_irqsave(&priv->lock, flags);
-
- rxq->need_update = 1;
- iwl_rx_queue_update_write_ptr(priv, rxq);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Allocate or reset and init all Tx and Command queues */
- if (!priv->txq) {
- ret = iwl_txq_ctx_alloc(priv);
- if (ret)
- return ret;
- } else
- iwl_txq_ctx_reset(priv);
-
- set_bit(STATUS_INIT, &priv->status);
-
- return 0;
-}
-EXPORT_SYMBOL(iwl_hw_nic_init);
-
/*
* QoS support
*/
-void iwl_activate_qos(struct iwl_priv *priv, u8 force)
+static void iwl_update_qos(struct iwl_priv *priv)
{
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
priv->qos_data.def_qos_parm.qos_flags = 0;
- if (priv->qos_data.qos_cap.q_AP.queue_request &&
- !priv->qos_data.qos_cap.q_AP.txop_request)
- priv->qos_data.def_qos_parm.qos_flags |=
- QOS_PARAM_FLG_TXOP_TYPE_MSK;
if (priv->qos_data.qos_active)
priv->qos_data.def_qos_parm.qos_flags |=
QOS_PARAM_FLG_UPDATE_EDCA_MSK;
if (priv->current_ht_config.is_ht)
priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
- if (force || iwl_is_associated(priv)) {
- IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
- priv->qos_data.qos_active,
- priv->qos_data.def_qos_parm.qos_flags);
+ IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
+ priv->qos_data.qos_active,
+ priv->qos_data.def_qos_parm.qos_flags);
- iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM,
- sizeof(struct iwl_qosparam_cmd),
- &priv->qos_data.def_qos_parm, NULL);
- }
+ iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM,
+ sizeof(struct iwl_qosparam_cmd),
+ &priv->qos_data.def_qos_parm, NULL);
}
-EXPORT_SYMBOL(iwl_activate_qos);
-
-/*
- * AC CWmin CW max AIFSN TXOP Limit TXOP Limit
- * (802.11b) (802.11a/g)
- * AC_BK 15 1023 7 0 0
- * AC_BE 15 1023 3 0 0
- * AC_VI 7 15 2 6.016ms 3.008ms
- * AC_VO 3 7 2 3.264ms 1.504ms
- */
-void iwl_reset_qos(struct iwl_priv *priv)
-{
- u16 cw_min = 15;
- u16 cw_max = 1023;
- u8 aifs = 2;
- bool is_legacy = false;
- unsigned long flags;
- int i;
-
- spin_lock_irqsave(&priv->lock, flags);
- /* QoS always active in AP and ADHOC mode
- * In STA mode wait for association
- */
- if (priv->iw_mode == NL80211_IFTYPE_ADHOC ||
- priv->iw_mode == NL80211_IFTYPE_AP)
- priv->qos_data.qos_active = 1;
- else
- priv->qos_data.qos_active = 0;
-
- /* check for legacy mode */
- if ((priv->iw_mode == NL80211_IFTYPE_ADHOC &&
- (priv->active_rate & IWL_OFDM_RATES_MASK) == 0) ||
- (priv->iw_mode == NL80211_IFTYPE_STATION &&
- (priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK) == 0)) {
- cw_min = 31;
- is_legacy = 1;
- }
-
- if (priv->qos_data.qos_active)
- aifs = 3;
-
- /* AC_BE */
- priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min);
- priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max);
- priv->qos_data.def_qos_parm.ac[0].aifsn = aifs;
- priv->qos_data.def_qos_parm.ac[0].edca_txop = 0;
- priv->qos_data.def_qos_parm.ac[0].reserved1 = 0;
-
- if (priv->qos_data.qos_active) {
- /* AC_BK */
- i = 1;
- priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min);
- priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max);
- priv->qos_data.def_qos_parm.ac[i].aifsn = 7;
- priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
- priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
-
- /* AC_VI */
- i = 2;
- priv->qos_data.def_qos_parm.ac[i].cw_min =
- cpu_to_le16((cw_min + 1) / 2 - 1);
- priv->qos_data.def_qos_parm.ac[i].cw_max =
- cpu_to_le16(cw_min);
- priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
- if (is_legacy)
- priv->qos_data.def_qos_parm.ac[i].edca_txop =
- cpu_to_le16(6016);
- else
- priv->qos_data.def_qos_parm.ac[i].edca_txop =
- cpu_to_le16(3008);
- priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
-
- /* AC_VO */
- i = 3;
- priv->qos_data.def_qos_parm.ac[i].cw_min =
- cpu_to_le16((cw_min + 1) / 4 - 1);
- priv->qos_data.def_qos_parm.ac[i].cw_max =
- cpu_to_le16((cw_min + 1) / 2 - 1);
- priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
- priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
- if (is_legacy)
- priv->qos_data.def_qos_parm.ac[i].edca_txop =
- cpu_to_le16(3264);
- else
- priv->qos_data.def_qos_parm.ac[i].edca_txop =
- cpu_to_le16(1504);
- } else {
- for (i = 1; i < 4; i++) {
- priv->qos_data.def_qos_parm.ac[i].cw_min =
- cpu_to_le16(cw_min);
- priv->qos_data.def_qos_parm.ac[i].cw_max =
- cpu_to_le16(cw_max);
- priv->qos_data.def_qos_parm.ac[i].aifsn = aifs;
- priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
- priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
- }
- }
- IWL_DEBUG_QOS(priv, "set QoS to default \n");
-
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-EXPORT_SYMBOL(iwl_reset_qos);
#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
#define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv)
{
- int i;
- int rate_mask;
-
- /* Set rate mask*/
- if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
- rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK;
- else
- rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK;
-
- /* Find lowest valid rate */
- for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
- i = iwl_rates[i].next_ieee) {
- if (rate_mask & (1 << i))
- return iwl_rates[i].plcp;
- }
-
- /* No valid rate was found. Assign the lowest one */
+ /*
+ * Assign the lowest rate -- should really get this from
+ * the beacon skb from mac80211.
+ */
if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
return IWL_RATE_1M_PLCP;
else
return res;
}
-/**
- * iwl_is_monitor_mode - Determine if interface in monitor mode
- *
- * priv->iw_mode is set in add_interface, but add_interface is
- * never called for monitor mode. The only way mac80211 informs us about
- * monitor mode is through configuring filters (call to configure_filter).
- */
-bool iwl_is_monitor_mode(struct iwl_priv *priv)
-{
- return !!(priv->staging_rxon.filter_flags & RXON_FILTER_PROMISC_MSK);
-}
-EXPORT_SYMBOL(iwl_is_monitor_mode);
-
/**
* iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
*
rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;
- /* copied from 'iwl_bg_request_scan()' */
- /* Force use of chains B and C (0x6) for Rx for 4965
- * Avoid A (0x1) because of its off-channel reception on A-band.
- * MIMO is not used here, but value is required */
- if (iwl_is_monitor_mode(priv) &&
- !(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) &&
- ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)) {
- rx_chain = ANT_ABC << RXON_RX_CHAIN_VALID_POS;
- rx_chain |= ANT_BC << RXON_RX_CHAIN_FORCE_SEL_POS;
- rx_chain |= ANT_ABC << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS;
- rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS;
- }
-
priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain);
if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)
if (!ch_info)
ch_info = &priv->channel_info[0];
- /*
- * in some case A channels are all non IBSS
- * in this case force B/G channel
- */
- if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
- !(is_channel_ibss(ch_info)))
- ch_info = &priv->channel_info[0];
-
priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
priv->band = ch_info->band;
}
priv->active_rate = 0;
- priv->active_rate_basic = 0;
for (i = 0; i < hw->n_bitrates; i++) {
rate = &(hw->bitrates[i]);
priv->active_rate |= (1 << rate->hw_value);
}
- IWL_DEBUG_RATE(priv, "Set active_rate = %0x, active_rate_basic = %0x\n",
- priv->active_rate, priv->active_rate_basic);
+ IWL_DEBUG_RATE(priv, "Set active_rate = %0x\n", priv->active_rate);
- /*
- * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
- * otherwise set it to the default of all CCK rates and 6, 12, 24 for
- * OFDM
- */
- if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
- priv->staging_rxon.cck_basic_rates =
- ((priv->active_rate_basic &
- IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
- else
- priv->staging_rxon.cck_basic_rates =
- (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
-
- if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
- priv->staging_rxon.ofdm_basic_rates =
- ((priv->active_rate_basic &
- (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
- IWL_FIRST_OFDM_RATE) & 0xFF;
- else
- priv->staging_rxon.ofdm_basic_rates =
- (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+ priv->staging_rxon.cck_basic_rates =
+ (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
+
+ priv->staging_rxon.ofdm_basic_rates =
+ (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
}
void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
}
EXPORT_SYMBOL(iwl_irq_handle_error);
-int iwl_apm_stop_master(struct iwl_priv *priv)
+static int iwl_apm_stop_master(struct iwl_priv *priv)
{
int ret = 0;
return ret;
}
-EXPORT_SYMBOL(iwl_apm_stop_master);
void iwl_apm_stop(struct iwl_priv *priv)
{
int ret = 0;
s8 prev_tx_power = priv->tx_power_user_lmt;
- if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) {
- IWL_WARN(priv, "Requested user TXPOWER %d below lower limit %d.\n",
+ if (tx_power < IWLAGN_TX_POWER_TARGET_POWER_MIN) {
+ IWL_WARN(priv,
+ "Requested user TXPOWER %d below lower limit %d.\n",
tx_power,
- IWL_TX_POWER_TARGET_POWER_MIN);
+ IWLAGN_TX_POWER_TARGET_POWER_MIN);
return -EINVAL;
}
}
EXPORT_SYMBOL(iwl_set_tx_power);
-#define ICT_COUNT (PAGE_SIZE/sizeof(u32))
-
-/* Free dram table */
-void iwl_free_isr_ict(struct iwl_priv *priv)
-{
- if (priv->ict_tbl_vir) {
- dma_free_coherent(&priv->pci_dev->dev,
- (sizeof(u32) * ICT_COUNT) + PAGE_SIZE,
- priv->ict_tbl_vir, priv->ict_tbl_dma);
- priv->ict_tbl_vir = NULL;
- }
-}
-EXPORT_SYMBOL(iwl_free_isr_ict);
-
-
-/* allocate dram shared table it is a PAGE_SIZE aligned
- * also reset all data related to ICT table interrupt.
- */
-int iwl_alloc_isr_ict(struct iwl_priv *priv)
-{
-
- if (priv->cfg->use_isr_legacy)
- return 0;
- /* allocate shrared data table */
- priv->ict_tbl_vir = dma_alloc_coherent(&priv->pci_dev->dev,
- (sizeof(u32) * ICT_COUNT) + PAGE_SIZE,
- &priv->ict_tbl_dma, GFP_KERNEL);
- if (!priv->ict_tbl_vir)
- return -ENOMEM;
-
- /* align table to PAGE_SIZE boundry */
- priv->aligned_ict_tbl_dma = ALIGN(priv->ict_tbl_dma, PAGE_SIZE);
-
- IWL_DEBUG_ISR(priv, "ict dma addr %Lx dma aligned %Lx diff %d\n",
- (unsigned long long)priv->ict_tbl_dma,
- (unsigned long long)priv->aligned_ict_tbl_dma,
- (int)(priv->aligned_ict_tbl_dma - priv->ict_tbl_dma));
-
- priv->ict_tbl = priv->ict_tbl_vir +
- (priv->aligned_ict_tbl_dma - priv->ict_tbl_dma);
-
- IWL_DEBUG_ISR(priv, "ict vir addr %p vir aligned %p diff %d\n",
- priv->ict_tbl, priv->ict_tbl_vir,
- (int)(priv->aligned_ict_tbl_dma - priv->ict_tbl_dma));
-
- /* reset table and index to all 0 */
- memset(priv->ict_tbl_vir,0, (sizeof(u32) * ICT_COUNT) + PAGE_SIZE);
- priv->ict_index = 0;
-
- /* add periodic RX interrupt */
- priv->inta_mask |= CSR_INT_BIT_RX_PERIODIC;
- return 0;
-}
-EXPORT_SYMBOL(iwl_alloc_isr_ict);
-
-/* Device is going up inform it about using ICT interrupt table,
- * also we need to tell the driver to start using ICT interrupt.
- */
-int iwl_reset_ict(struct iwl_priv *priv)
-{
- u32 val;
- unsigned long flags;
-
- if (!priv->ict_tbl_vir)
- return 0;
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_disable_interrupts(priv);
-
- memset(&priv->ict_tbl[0], 0, sizeof(u32) * ICT_COUNT);
-
- val = priv->aligned_ict_tbl_dma >> PAGE_SHIFT;
-
- val |= CSR_DRAM_INT_TBL_ENABLE;
- val |= CSR_DRAM_INIT_TBL_WRAP_CHECK;
-
- IWL_DEBUG_ISR(priv, "CSR_DRAM_INT_TBL_REG =0x%X "
- "aligned dma address %Lx\n",
- val, (unsigned long long)priv->aligned_ict_tbl_dma);
-
- iwl_write32(priv, CSR_DRAM_INT_TBL_REG, val);
- priv->use_ict = true;
- priv->ict_index = 0;
- iwl_write32(priv, CSR_INT, priv->inta_mask);
- iwl_enable_interrupts(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return 0;
-}
-EXPORT_SYMBOL(iwl_reset_ict);
-
-/* Device is going down disable ict interrupt usage */
-void iwl_disable_ict(struct iwl_priv *priv)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->use_ict = false;
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-EXPORT_SYMBOL(iwl_disable_ict);
-
-/* interrupt handler using ict table, with this interrupt driver will
- * stop using INTA register to get device's interrupt, reading this register
- * is expensive, device will write interrupts in ICT dram table, increment
- * index then will fire interrupt to driver, driver will OR all ICT table
- * entries from current index up to table entry with 0 value. the result is
- * the interrupt we need to service, driver will set the entries back to 0 and
- * set index.
- */
-irqreturn_t iwl_isr_ict(int irq, void *data)
-{
- struct iwl_priv *priv = data;
- u32 inta, inta_mask;
- u32 val = 0;
-
- if (!priv)
- return IRQ_NONE;
-
- /* dram interrupt table not set yet,
- * use legacy interrupt.
- */
- if (!priv->use_ict)
- return iwl_isr(irq, data);
-
- spin_lock(&priv->lock);
-
- /* Disable (but don't clear!) interrupts here to avoid
- * back-to-back ISRs and sporadic interrupts from our NIC.
- * If we have something to service, the tasklet will re-enable ints.
- * If we *don't* have something, we'll re-enable before leaving here.
- */
- inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
- iwl_write32(priv, CSR_INT_MASK, 0x00000000);
-
-
- /* Ignore interrupt if there's nothing in NIC to service.
- * This may be due to IRQ shared with another device,
- * or due to sporadic interrupts thrown from our NIC. */
- if (!priv->ict_tbl[priv->ict_index]) {
- IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n");
- goto none;
- }
-
- /* read all entries that not 0 start with ict_index */
- while (priv->ict_tbl[priv->ict_index]) {
-
- val |= le32_to_cpu(priv->ict_tbl[priv->ict_index]);
- IWL_DEBUG_ISR(priv, "ICT index %d value 0x%08X\n",
- priv->ict_index,
- le32_to_cpu(priv->ict_tbl[priv->ict_index]));
- priv->ict_tbl[priv->ict_index] = 0;
- priv->ict_index = iwl_queue_inc_wrap(priv->ict_index,
- ICT_COUNT);
-
- }
-
- /* We should not get this value, just ignore it. */
- if (val == 0xffffffff)
- val = 0;
-
- /*
- * this is a w/a for a h/w bug. the h/w bug may cause the Rx bit
- * (bit 15 before shifting it to 31) to clear when using interrupt
- * coalescing. fortunately, bits 18 and 19 stay set when this happens
- * so we use them to decide on the real state of the Rx bit.
- * In order words, bit 15 is set if bit 18 or bit 19 are set.
- */
- if (val & 0xC0000)
- val |= 0x8000;
-
- inta = (0xff & val) | ((0xff00 & val) << 16);
- IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n",
- inta, inta_mask, val);
-
- inta &= priv->inta_mask;
- priv->inta |= inta;
-
- /* iwl_irq_tasklet() will service interrupts and re-enable them */
- if (likely(inta))
- tasklet_schedule(&priv->irq_tasklet);
- else if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) {
- /* Allow interrupt if was disabled by this handler and
- * no tasklet was schedules, We should not enable interrupt,
- * tasklet will enable it.
- */
- iwl_enable_interrupts(priv);
- }
-
- spin_unlock(&priv->lock);
- return IRQ_HANDLED;
-
- none:
- /* re-enable interrupts here since we don't have anything to service.
- * only Re-enable if disabled by irq.
- */
- if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta)
- iwl_enable_interrupts(priv);
-
- spin_unlock(&priv->lock);
- return IRQ_NONE;
-}
-EXPORT_SYMBOL(iwl_isr_ict);
-
-
-static irqreturn_t iwl_isr(int irq, void *data)
-{
- struct iwl_priv *priv = data;
- u32 inta, inta_mask;
-#ifdef CONFIG_IWLWIFI_DEBUG
- u32 inta_fh;
-#endif
- if (!priv)
- return IRQ_NONE;
-
- spin_lock(&priv->lock);
-
- /* Disable (but don't clear!) interrupts here to avoid
- * back-to-back ISRs and sporadic interrupts from our NIC.
- * If we have something to service, the tasklet will re-enable ints.
- * If we *don't* have something, we'll re-enable before leaving here. */
- inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
- iwl_write32(priv, CSR_INT_MASK, 0x00000000);
-
- /* Discover which interrupts are active/pending */
- inta = iwl_read32(priv, CSR_INT);
-
- /* Ignore interrupt if there's nothing in NIC to service.
- * This may be due to IRQ shared with another device,
- * or due to sporadic interrupts thrown from our NIC. */
- if (!inta) {
- IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n");
- goto none;
- }
-
- if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
- /* Hardware disappeared. It might have already raised
- * an interrupt */
- IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
- goto unplugged;
- }
-
-#ifdef CONFIG_IWLWIFI_DEBUG
- if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
- IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, "
- "fh 0x%08x\n", inta, inta_mask, inta_fh);
- }
-#endif
-
- priv->inta |= inta;
- /* iwl_irq_tasklet() will service interrupts and re-enable them */
- if (likely(inta))
- tasklet_schedule(&priv->irq_tasklet);
- else if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta)
- iwl_enable_interrupts(priv);
-
- unplugged:
- spin_unlock(&priv->lock);
- return IRQ_HANDLED;
-
- none:
- /* re-enable interrupts here since we don't have anything to service. */
- /* only Re-enable if diabled by irq and no schedules tasklet. */
- if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta)
- iwl_enable_interrupts(priv);
-
- spin_unlock(&priv->lock);
- return IRQ_NONE;
-}
-
irqreturn_t iwl_isr_legacy(int irq, void *data)
{
struct iwl_priv *priv = data;
u32 inta, inta_mask;
u32 inta_fh;
+ unsigned long flags;
if (!priv)
return IRQ_NONE;
- spin_lock(&priv->lock);
+ spin_lock_irqsave(&priv->lock, flags);
/* Disable (but don't clear!) interrupts here to avoid
* back-to-back ISRs and sporadic interrupts from our NIC.
tasklet_schedule(&priv->irq_tasklet);
unplugged:
- spin_unlock(&priv->lock);
+ spin_unlock_irqrestore(&priv->lock, flags);
return IRQ_HANDLED;
none:
/* only Re-enable if diabled by irq */
if (test_bit(STATUS_INT_ENABLED, &priv->status))
iwl_enable_interrupts(priv);
- spin_unlock(&priv->lock);
+ spin_unlock_irqrestore(&priv->lock, flags);
return IRQ_NONE;
}
EXPORT_SYMBOL(iwl_isr_legacy);
-int iwl_send_bt_config(struct iwl_priv *priv)
+void iwl_send_bt_config(struct iwl_priv *priv)
{
struct iwl_bt_cmd bt_cmd = {
.lead_time = BT_LEAD_TIME_DEF,
IWL_DEBUG_INFO(priv, "BT coex %s\n",
(bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active");
- return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
- sizeof(struct iwl_bt_cmd), &bt_cmd);
+ if (iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
+ sizeof(struct iwl_bt_cmd), &bt_cmd))
+ IWL_ERR(priv, "failed to send BT Coex Config\n");
}
EXPORT_SYMBOL(iwl_send_bt_config);
cpu_to_le16((params->txop * 32));
priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
- priv->qos_data.qos_active = 1;
-
- if (priv->iw_mode == NL80211_IFTYPE_AP)
- iwl_activate_qos(priv, 1);
- else if (priv->assoc_id && iwl_is_associated(priv))
- iwl_activate_qos(priv, 0);
spin_unlock_irqrestore(&priv->lock, flags);
struct iwl_ht_config *ht_conf = &priv->current_ht_config;
struct ieee80211_sta *sta;
- IWL_DEBUG_MAC80211(priv, "enter: \n");
+ IWL_DEBUG_MAC80211(priv, "enter:\n");
if (!ht_conf->is_ht)
return;
iwlcore_commit_rxon(priv);
}
-#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
void iwl_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
iwl_led_associate(priv);
- /*
- * We have just associated, don't start scan too early
- * leave time for EAPOL exchange to complete.
- *
- * XXX: do this in mac80211
- */
- priv->next_scan_jiffies = jiffies +
- IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
if (!iwl_is_rfkill(priv))
priv->cfg->ops->lib->post_associate(priv);
} else
return -EIO;
}
- if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
- IWL_DEBUG_MAC80211(priv, "leave - not IBSS\n");
- return -EIO;
- }
-
spin_lock_irqsave(&priv->lock, flags);
if (priv->ibss_beacon)
IWL_DEBUG_MAC80211(priv, "leave\n");
spin_unlock_irqrestore(&priv->lock, flags);
- iwl_reset_qos(priv);
-
priv->cfg->ops->lib->post_associate(priv);
-
return 0;
}
EXPORT_SYMBOL(iwl_mac_beacon_update);
-int iwl_set_mode(struct iwl_priv *priv, int mode)
+static int iwl_set_mode(struct iwl_priv *priv, struct ieee80211_vif *vif)
{
- if (mode == NL80211_IFTYPE_ADHOC) {
- const struct iwl_channel_info *ch_info;
-
- ch_info = iwl_get_channel_info(priv,
- priv->band,
- le16_to_cpu(priv->staging_rxon.channel));
-
- if (!ch_info || !is_channel_ibss(ch_info)) {
- IWL_ERR(priv, "channel %d not IBSS channel\n",
- le16_to_cpu(priv->staging_rxon.channel));
- return -EINVAL;
- }
- }
-
- iwl_connection_init_rx_config(priv, mode);
+ iwl_connection_init_rx_config(priv, vif->type);
if (priv->cfg->ops->hcmd->set_rxon_chain)
priv->cfg->ops->hcmd->set_rxon_chain(priv);
memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
- iwl_clear_stations_table(priv);
-
- /* dont commit rxon if rf-kill is on*/
- if (!iwl_is_ready_rf(priv))
- return -EAGAIN;
-
- iwlcore_commit_rxon(priv);
-
- return 0;
+ return iwlcore_commit_rxon(priv);
}
-EXPORT_SYMBOL(iwl_set_mode);
-int iwl_mac_add_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
+int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
struct iwl_priv *priv = hw->priv;
int err = 0;
mutex_lock(&priv->mutex);
+ if (WARN_ON(!iwl_is_ready_rf(priv))) {
+ err = -EINVAL;
+ goto out;
+ }
+
if (priv->vif) {
IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n");
err = -EOPNOTSUPP;
priv->vif = vif;
priv->iw_mode = vif->type;
- if (vif->addr) {
- IWL_DEBUG_MAC80211(priv, "Set %pM\n", vif->addr);
- memcpy(priv->mac_addr, vif->addr, ETH_ALEN);
- }
+ IWL_DEBUG_MAC80211(priv, "Set %pM\n", vif->addr);
+ memcpy(priv->mac_addr, vif->addr, ETH_ALEN);
+
+ err = iwl_set_mode(priv, vif);
+ if (err)
+ goto out_err;
+
+ /* Add the broadcast address so we can send broadcast frames */
+ priv->cfg->ops->lib->add_bcast_station(priv);
- if (iwl_set_mode(priv, vif->type) == -EAGAIN)
- /* we are not ready, will run again when ready */
- set_bit(STATUS_MODE_PENDING, &priv->status);
+ goto out;
+ out_err:
+ priv->vif = NULL;
+ priv->iw_mode = NL80211_IFTYPE_STATION;
out:
mutex_unlock(&priv->mutex);
EXPORT_SYMBOL(iwl_mac_add_interface);
void iwl_mac_remove_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
+ struct ieee80211_vif *vif)
{
struct iwl_priv *priv = hw->priv;
mutex_lock(&priv->mutex);
+ iwl_clear_ucode_stations(priv, true);
+
if (iwl_is_ready_rf(priv)) {
iwl_scan_cancel_timeout(priv, 100);
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
/**
* iwl_mac_config - mac80211 config callback
- *
- * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
- * be set inappropriately and the driver currently sets the hardware up to
- * use it whenever needed.
*/
int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
{
goto set_ch_out;
}
- if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
- !is_channel_ibss(ch_info)) {
- IWL_ERR(priv, "channel %d in band %d not "
- "IBSS channel\n",
- conf->channel->hw_value, conf->channel->band);
- ret = -EINVAL;
- goto set_ch_out;
- }
-
spin_lock_irqsave(&priv->lock, flags);
/* Configure HT40 channels */
iwl_set_tx_power(priv, conf->power_level, false);
}
+ if (changed & IEEE80211_CONF_CHANGE_QOS) {
+ bool qos_active = !!(conf->flags & IEEE80211_CONF_QOS);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->qos_data.qos_active = qos_active;
+ iwl_update_qos(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ }
+
if (!iwl_is_ready(priv)) {
IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
goto out;
memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_config));
spin_unlock_irqrestore(&priv->lock, flags);
- iwl_reset_qos(priv);
-
spin_lock_irqsave(&priv->lock, flags);
priv->assoc_id = 0;
priv->assoc_capability = 0;
- priv->assoc_station_added = 0;
/* new association get rid of ibss beacon skb */
if (priv->ibss_beacon)
priv->beacon_int = priv->vif->bss_conf.beacon_int;
priv->timestamp = 0;
- if ((priv->iw_mode == NL80211_IFTYPE_STATION))
- priv->beacon_int = 0;
spin_unlock_irqrestore(&priv->lock, flags);
/* we are restarting association process
* clear RXON_FILTER_ASSOC_MSK bit
*/
- if (priv->iw_mode != NL80211_IFTYPE_AP) {
- iwl_scan_cancel_timeout(priv, 100);
- priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwlcore_commit_rxon(priv);
- }
-
- if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
- IWL_DEBUG_MAC80211(priv, "leave - not in IBSS\n");
- mutex_unlock(&priv->mutex);
- return;
- }
+ iwl_scan_cancel_timeout(priv, 100);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwlcore_commit_rxon(priv);
iwl_set_rate(priv);
sizeof(struct iwl_tx_queue) * priv->cfg->num_of_queues,
GFP_KERNEL);
if (!priv->txq) {
- IWL_ERR(priv, "Not enough memory for txq \n");
+ IWL_ERR(priv, "Not enough memory for txq\n");
return -ENOMEM;
}
return 0;
int iwl_send_wimax_coex(struct iwl_priv *priv)
{
- struct iwl_wimax_coex_cmd uninitialized_var(coex_cmd);
+ struct iwl_wimax_coex_cmd coex_cmd;
if (priv->cfg->support_wimax_coexist) {
/* UnMask wake up src at associated sleep */
- coex_cmd.flags |= COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
+ coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
/* UnMask wake up src at unassociated sleep */
coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
*/
IWL_DEBUG_INFO(priv, "perform radio reset.\n");
iwl_internal_short_hw_scan(priv);
- return;
}
}
return 0;
}
+EXPORT_SYMBOL(iwl_force_reset);
+
+/**
+ * iwl_bg_monitor_recover - Timer callback to check for stuck queue and recover
+ *
+ * During normal condition (no queue is stuck), the timer is continually set to
+ * execute every monitor_recover_period milliseconds after the last timer
+ * expired. When the queue read_ptr is at the same place, the timer is
+ * shorten to 100mSecs. This is
+ * 1) to reduce the chance that the read_ptr may wrap around (not stuck)
+ * 2) to detect the stuck queues quicker before the station and AP can
+ * disassociate each other.
+ *
+ * This function monitors all the tx queues and recover from it if any
+ * of the queues are stuck.
+ * 1. It first check the cmd queue for stuck conditions. If it is stuck,
+ * it will recover by resetting the firmware and return.
+ * 2. Then, it checks for station association. If it associates it will check
+ * other queues. If any queue is stuck, it will recover by resetting
+ * the firmware.
+ * Note: It the number of times the queue read_ptr to be at the same place to
+ * be MAX_REPEAT+1 in order to consider to be stuck.
+ */
+/*
+ * The maximum number of times the read pointer of the tx queue at the
+ * same place without considering to be stuck.
+ */
+#define MAX_REPEAT (2)
+static int iwl_check_stuck_queue(struct iwl_priv *priv, int cnt)
+{
+ struct iwl_tx_queue *txq;
+ struct iwl_queue *q;
+
+ txq = &priv->txq[cnt];
+ q = &txq->q;
+ /* queue is empty, skip */
+ if (q->read_ptr != q->write_ptr) {
+ if (q->read_ptr == q->last_read_ptr) {
+ /* a queue has not been read from last time */
+ if (q->repeat_same_read_ptr > MAX_REPEAT) {
+ IWL_ERR(priv,
+ "queue %d stuck %d time. Fw reload.\n",
+ q->id, q->repeat_same_read_ptr);
+ q->repeat_same_read_ptr = 0;
+ iwl_force_reset(priv, IWL_FW_RESET);
+ } else {
+ q->repeat_same_read_ptr++;
+ IWL_DEBUG_RADIO(priv,
+ "queue %d, not read %d time\n",
+ q->id,
+ q->repeat_same_read_ptr);
+ mod_timer(&priv->monitor_recover, jiffies +
+ msecs_to_jiffies(IWL_ONE_HUNDRED_MSECS));
+ }
+ return 1;
+ } else {
+ q->last_read_ptr = q->read_ptr;
+ q->repeat_same_read_ptr = 0;
+ }
+ }
+ return 0;
+}
+
+void iwl_bg_monitor_recover(unsigned long data)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)data;
+ int cnt;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ /* monitor and check for stuck cmd queue */
+ if (iwl_check_stuck_queue(priv, IWL_CMD_QUEUE_NUM))
+ return;
+
+ /* monitor and check for other stuck queues */
+ if (iwl_is_associated(priv)) {
+ for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
+ /* skip as we already checked the command queue */
+ if (cnt == IWL_CMD_QUEUE_NUM)
+ continue;
+ if (iwl_check_stuck_queue(priv, cnt))
+ return;
+ }
+ }
+ /*
+ * Reschedule the timer to occur in
+ * priv->cfg->monitor_recover_period
+ */
+ mod_timer(&priv->monitor_recover,
+ jiffies + msecs_to_jiffies(priv->cfg->monitor_recover_period));
+}
+EXPORT_SYMBOL(iwl_bg_monitor_recover);
#ifdef CONFIG_PM
struct iwl_priv *priv = pci_get_drvdata(pdev);
int ret;
+ /*
+ * We disable the RETRY_TIMEOUT register (0x41) to keep
+ * PCI Tx retries from interfering with C3 CPU state.
+ */
+ pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
+
pci_set_power_state(pdev, PCI_D0);
ret = pci_enable_device(pdev);
if (ret)
git.openpandora.org / pandora-kernel.git / blobdiff