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path: root/drivers/net/wireless/iwlwifi/iwl-core.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-core.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-core.c1259
1 files changed, 1204 insertions, 55 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 2dfd982d7d1..a44188bf445 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -34,9 +34,11 @@
struct iwl_priv; /* FIXME: remove */
#include "iwl-debug.h"
#include "iwl-eeprom.h"
-#include "iwl-4965.h" /* FIXME: remove */
+#include "iwl-dev.h" /* FIXME: remove */
#include "iwl-core.h"
+#include "iwl-io.h"
#include "iwl-rfkill.h"
+#include "iwl-power.h"
MODULE_DESCRIPTION("iwl core");
@@ -44,10 +46,106 @@ MODULE_VERSION(IWLWIFI_VERSION);
MODULE_AUTHOR(DRV_COPYRIGHT);
MODULE_LICENSE("GPL");
-#ifdef CONFIG_IWLWIFI_DEBUG
-u32 iwl_debug_level;
-EXPORT_SYMBOL(iwl_debug_level);
-#endif
+#define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
+ [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
+ IWL_RATE_SISO_##s##M_PLCP, \
+ IWL_RATE_MIMO2_##s##M_PLCP,\
+ IWL_RATE_MIMO3_##s##M_PLCP,\
+ IWL_RATE_##r##M_IEEE, \
+ IWL_RATE_##ip##M_INDEX, \
+ IWL_RATE_##in##M_INDEX, \
+ IWL_RATE_##rp##M_INDEX, \
+ IWL_RATE_##rn##M_INDEX, \
+ IWL_RATE_##pp##M_INDEX, \
+ IWL_RATE_##np##M_INDEX }
+
+/*
+ * Parameter order:
+ * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
+ *
+ * If there isn't a valid next or previous rate then INV is used which
+ * maps to IWL_RATE_INVALID
+ *
+ */
+const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
+ IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */
+ IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */
+ IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */
+ IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */
+ IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */
+ IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */
+ IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */
+ IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */
+ IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */
+ IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */
+ IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */
+ IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */
+ IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */
+ /* FIXME:RS: ^^ should be INV (legacy) */
+};
+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 *control)
+{
+ int rate_index;
+
+ control->antenna_sel_tx =
+ ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
+ if (rate_n_flags & RATE_MCS_HT_MSK)
+ control->flags |= IEEE80211_TX_CTL_OFDM_HT;
+ if (rate_n_flags & RATE_MCS_GF_MSK)
+ control->flags |= IEEE80211_TX_CTL_GREEN_FIELD;
+ if (rate_n_flags & RATE_MCS_FAT_MSK)
+ control->flags |= IEEE80211_TX_CTL_40_MHZ_WIDTH;
+ if (rate_n_flags & RATE_MCS_DUP_MSK)
+ control->flags |= IEEE80211_TX_CTL_DUP_DATA;
+ if (rate_n_flags & RATE_MCS_SGI_MSK)
+ control->flags |= IEEE80211_TX_CTL_SHORT_GI;
+ rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags);
+ if (control->band == IEEE80211_BAND_5GHZ)
+ rate_index -= IWL_FIRST_OFDM_RATE;
+ control->tx_rate_idx = rate_index;
+}
+EXPORT_SYMBOL(iwl_hwrate_to_tx_control);
+
+int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
+{
+ int idx = 0;
+
+ /* HT rate format */
+ if (rate_n_flags & RATE_MCS_HT_MSK) {
+ idx = (rate_n_flags & 0xff);
+
+ if (idx >= IWL_RATE_MIMO2_6M_PLCP)
+ idx = idx - IWL_RATE_MIMO2_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;
+
+ /* legacy rate format, search for match in table */
+ } else {
+ for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++)
+ if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
+ return idx;
+ }
+
+ return -1;
+}
+EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx);
+
+
+
+const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+EXPORT_SYMBOL(iwl_bcast_addr);
+
/* This function both allocates and initializes hw and priv. */
struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
@@ -72,25 +170,132 @@ out:
}
EXPORT_SYMBOL(iwl_alloc_all);
+void iwl_hw_detect(struct iwl_priv *priv)
+{
+ priv->hw_rev = _iwl_read32(priv, CSR_HW_REV);
+ priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG);
+ pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id);
+}
+EXPORT_SYMBOL(iwl_hw_detect);
+
+/* Tell nic where to find the "keep warm" buffer */
+int iwl_kw_init(struct iwl_priv *priv)
+{
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ ret = iwl_grab_nic_access(priv);
+ if (ret)
+ goto out;
+
+ iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG,
+ priv->kw.dma_addr >> 4);
+ iwl_release_nic_access(priv);
+out:
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return ret;
+}
+
+int iwl_kw_alloc(struct iwl_priv *priv)
+{
+ struct pci_dev *dev = priv->pci_dev;
+ struct iwl_kw *kw = &priv->kw;
+
+ kw->size = IWL_KW_SIZE;
+ kw->v_addr = pci_alloc_consistent(dev, kw->size, &kw->dma_addr);
+ if (!kw->v_addr)
+ return -ENOMEM;
+
+ return 0;
+}
+
+/**
+ * iwl_kw_free - Free the "keep warm" buffer
+ */
+void iwl_kw_free(struct iwl_priv *priv)
+{
+ struct pci_dev *dev = priv->pci_dev;
+ struct iwl_kw *kw = &priv->kw;
+
+ if (kw->v_addr) {
+ pci_free_consistent(dev, kw->size, kw->v_addr, kw->dma_addr);
+ memset(kw, 0, sizeof(*kw));
+ }
+}
+
+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);
+ iwl_write32(priv, CSR_INT_COALESCING, 512 / 32);
+ 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_ERROR("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 and init all Tx and Command queues */
+ ret = iwl_txq_ctx_reset(priv);
+ if (ret)
+ return ret;
+
+ set_bit(STATUS_INIT, &priv->status);
+
+ return 0;
+}
+EXPORT_SYMBOL(iwl_hw_nic_init);
+
/**
- * iwlcore_clear_stations_table - Clear the driver's station table
+ * iwl_clear_stations_table - Clear the driver's station table
*
* NOTE: This does not clear or otherwise alter the device's station table.
*/
-void iwlcore_clear_stations_table(struct iwl_priv *priv)
+void iwl_clear_stations_table(struct iwl_priv *priv)
{
unsigned long flags;
spin_lock_irqsave(&priv->sta_lock, flags);
+ if (iwl_is_alive(priv) &&
+ !test_bit(STATUS_EXIT_PENDING, &priv->status) &&
+ iwl_send_cmd_pdu_async(priv, REPLY_REMOVE_ALL_STA, 0, NULL, NULL))
+ IWL_ERROR("Couldn't clear the station table\n");
+
priv->num_stations = 0;
memset(priv->stations, 0, sizeof(priv->stations));
spin_unlock_irqrestore(&priv->sta_lock, flags);
}
-EXPORT_SYMBOL(iwlcore_clear_stations_table);
+EXPORT_SYMBOL(iwl_clear_stations_table);
-void iwlcore_reset_qos(struct iwl_priv *priv)
+void iwl_reset_qos(struct iwl_priv *priv)
{
u16 cw_min = 15;
u16 cw_max = 1023;
@@ -176,7 +381,397 @@ void iwlcore_reset_qos(struct iwl_priv *priv)
spin_unlock_irqrestore(&priv->lock, flags);
}
-EXPORT_SYMBOL(iwlcore_reset_qos);
+EXPORT_SYMBOL(iwl_reset_qos);
+
+#define MAX_BIT_RATE_40_MHZ 0x96; /* 150 Mbps */
+#define MAX_BIT_RATE_20_MHZ 0x48; /* 72 Mbps */
+static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
+ struct ieee80211_ht_info *ht_info,
+ enum ieee80211_band band)
+{
+ u16 max_bit_rate = 0;
+ u8 rx_chains_num = priv->hw_params.rx_chains_num;
+ u8 tx_chains_num = priv->hw_params.tx_chains_num;
+
+ ht_info->cap = 0;
+ memset(ht_info->supp_mcs_set, 0, 16);
+
+ ht_info->ht_supported = 1;
+
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_GRN_FLD;
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_20;
+ ht_info->cap |= (u16)(IEEE80211_HT_CAP_MIMO_PS &
+ (IWL_MIMO_PS_NONE << 2));
+
+ max_bit_rate = MAX_BIT_RATE_20_MHZ;
+ if (priv->hw_params.fat_channel & BIT(band)) {
+ 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;
+ max_bit_rate = MAX_BIT_RATE_40_MHZ;
+ }
+
+ if (priv->cfg->mod_params->amsdu_size_8K)
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_MAX_AMSDU;
+
+ ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
+ ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
+
+ ht_info->supp_mcs_set[0] = 0xFF;
+ if (rx_chains_num >= 2)
+ ht_info->supp_mcs_set[1] = 0xFF;
+ if (rx_chains_num >= 3)
+ ht_info->supp_mcs_set[2] = 0xFF;
+
+ /* Highest supported Rx data rate */
+ max_bit_rate *= rx_chains_num;
+ ht_info->supp_mcs_set[10] = (u8)(max_bit_rate & 0x00FF);
+ ht_info->supp_mcs_set[11] = (u8)((max_bit_rate & 0xFF00) >> 8);
+
+ /* Tx MCS capabilities */
+ ht_info->supp_mcs_set[12] = IEEE80211_HT_CAP_MCS_TX_DEFINED;
+ if (tx_chains_num != rx_chains_num) {
+ ht_info->supp_mcs_set[12] |= IEEE80211_HT_CAP_MCS_TX_RX_DIFF;
+ ht_info->supp_mcs_set[12] |= ((tx_chains_num - 1) << 2);
+ }
+}
+
+static void iwlcore_init_hw_rates(struct iwl_priv *priv,
+ struct ieee80211_rate *rates)
+{
+ int i;
+
+ for (i = 0; i < IWL_RATE_COUNT; i++) {
+ rates[i].bitrate = iwl_rates[i].ieee * 5;
+ rates[i].hw_value = i; /* Rate scaling will work on indexes */
+ rates[i].hw_value_short = i;
+ rates[i].flags = 0;
+ if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
+ /*
+ * If CCK != 1M then set short preamble rate flag.
+ */
+ rates[i].flags |=
+ (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
+ 0 : IEEE80211_RATE_SHORT_PREAMBLE;
+ }
+ }
+}
+
+/**
+ * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom
+ */
+static int iwlcore_init_geos(struct iwl_priv *priv)
+{
+ struct iwl_channel_info *ch;
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_channel *channels;
+ struct ieee80211_channel *geo_ch;
+ struct ieee80211_rate *rates;
+ int i = 0;
+
+ if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
+ priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
+ IWL_DEBUG_INFO("Geography modes already initialized.\n");
+ set_bit(STATUS_GEO_CONFIGURED, &priv->status);
+ return 0;
+ }
+
+ channels = kzalloc(sizeof(struct ieee80211_channel) *
+ priv->channel_count, GFP_KERNEL);
+ if (!channels)
+ return -ENOMEM;
+
+ rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)),
+ GFP_KERNEL);
+ if (!rates) {
+ kfree(channels);
+ return -ENOMEM;
+ }
+
+ /* 5.2GHz channels start after the 2.4GHz channels */
+ sband = &priv->bands[IEEE80211_BAND_5GHZ];
+ sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
+ /* just OFDM */
+ sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
+ sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE;
+
+ if (priv->cfg->sku & IWL_SKU_N)
+ iwlcore_init_ht_hw_capab(priv, &sband->ht_info,
+ IEEE80211_BAND_5GHZ);
+
+ sband = &priv->bands[IEEE80211_BAND_2GHZ];
+ sband->channels = channels;
+ /* OFDM & CCK */
+ sband->bitrates = rates;
+ sband->n_bitrates = IWL_RATE_COUNT;
+
+ if (priv->cfg->sku & IWL_SKU_N)
+ iwlcore_init_ht_hw_capab(priv, &sband->ht_info,
+ IEEE80211_BAND_2GHZ);
+
+ priv->ieee_channels = channels;
+ priv->ieee_rates = rates;
+
+ iwlcore_init_hw_rates(priv, rates);
+
+ for (i = 0; i < priv->channel_count; i++) {
+ ch = &priv->channel_info[i];
+
+ /* FIXME: might be removed if scan is OK */
+ if (!is_channel_valid(ch))
+ continue;
+
+ if (is_channel_a_band(ch))
+ sband = &priv->bands[IEEE80211_BAND_5GHZ];
+ else
+ sband = &priv->bands[IEEE80211_BAND_2GHZ];
+
+ geo_ch = &sband->channels[sband->n_channels++];
+
+ geo_ch->center_freq =
+ ieee80211_channel_to_frequency(ch->channel);
+ geo_ch->max_power = ch->max_power_avg;
+ geo_ch->max_antenna_gain = 0xff;
+ geo_ch->hw_value = ch->channel;
+
+ if (is_channel_valid(ch)) {
+ if (!(ch->flags & EEPROM_CHANNEL_IBSS))
+ geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
+
+ if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
+ geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
+
+ if (ch->flags & EEPROM_CHANNEL_RADAR)
+ geo_ch->flags |= IEEE80211_CHAN_RADAR;
+
+ geo_ch->flags |= ch->fat_extension_channel;
+
+ if (ch->max_power_avg > priv->tx_power_channel_lmt)
+ priv->tx_power_channel_lmt = ch->max_power_avg;
+ } else {
+ geo_ch->flags |= IEEE80211_CHAN_DISABLED;
+ }
+
+ /* Save flags for reg domain usage */
+ geo_ch->orig_flags = geo_ch->flags;
+
+ IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
+ ch->channel, geo_ch->center_freq,
+ is_channel_a_band(ch) ? "5.2" : "2.4",
+ geo_ch->flags & IEEE80211_CHAN_DISABLED ?
+ "restricted" : "valid",
+ geo_ch->flags);
+ }
+
+ if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
+ priv->cfg->sku & IWL_SKU_A) {
+ printk(KERN_INFO DRV_NAME
+ ": Incorrectly detected BG card as ABG. Please send "
+ "your PCI ID 0x%04X:0x%04X to maintainer.\n",
+ priv->pci_dev->device, priv->pci_dev->subsystem_device);
+ priv->cfg->sku &= ~IWL_SKU_A;
+ }
+
+ printk(KERN_INFO DRV_NAME
+ ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
+ priv->bands[IEEE80211_BAND_2GHZ].n_channels,
+ priv->bands[IEEE80211_BAND_5GHZ].n_channels);
+
+
+ set_bit(STATUS_GEO_CONFIGURED, &priv->status);
+
+ return 0;
+}
+
+/*
+ * iwlcore_free_geos - undo allocations in iwlcore_init_geos
+ */
+static void iwlcore_free_geos(struct iwl_priv *priv)
+{
+ kfree(priv->ieee_channels);
+ kfree(priv->ieee_rates);
+ clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
+}
+
+static u8 is_single_rx_stream(struct iwl_priv *priv)
+{
+ return !priv->current_ht_config.is_ht ||
+ ((priv->current_ht_config.supp_mcs_set[1] == 0) &&
+ (priv->current_ht_config.supp_mcs_set[2] == 0)) ||
+ priv->ps_mode == IWL_MIMO_PS_STATIC;
+}
+
+static u8 iwl_is_channel_extension(struct iwl_priv *priv,
+ enum ieee80211_band band,
+ u16 channel, u8 extension_chan_offset)
+{
+ const struct iwl_channel_info *ch_info;
+
+ ch_info = iwl_get_channel_info(priv, band, channel);
+ if (!is_channel_valid(ch_info))
+ return 0;
+
+ if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE)
+ return !(ch_info->fat_extension_channel &
+ IEEE80211_CHAN_NO_FAT_ABOVE);
+ else if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW)
+ return !(ch_info->fat_extension_channel &
+ IEEE80211_CHAN_NO_FAT_BELOW);
+
+ return 0;
+}
+
+u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
+ struct ieee80211_ht_info *sta_ht_inf)
+{
+ struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config;
+
+ if ((!iwl_ht_conf->is_ht) ||
+ (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) ||
+ (iwl_ht_conf->extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE))
+ return 0;
+
+ if (sta_ht_inf) {
+ if ((!sta_ht_inf->ht_supported) ||
+ (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH)))
+ return 0;
+ }
+
+ return iwl_is_channel_extension(priv, priv->band,
+ iwl_ht_conf->control_channel,
+ iwl_ht_conf->extension_chan_offset);
+}
+EXPORT_SYMBOL(iwl_is_fat_tx_allowed);
+
+void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
+{
+ struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+ u32 val;
+
+ if (!ht_info->is_ht)
+ return;
+
+ /* Set up channel bandwidth: 20 MHz only, or 20/40 mixed if fat ok */
+ if (iwl_is_fat_tx_allowed(priv, NULL))
+ rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED_MSK;
+ else
+ rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
+ RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
+
+ if (le16_to_cpu(rxon->channel) != ht_info->control_channel) {
+ IWL_DEBUG_ASSOC("control diff than current %d %d\n",
+ le16_to_cpu(rxon->channel),
+ ht_info->control_channel);
+ return;
+ }
+
+ /* Note: control channel is opposite of extension channel */
+ switch (ht_info->extension_chan_offset) {
+ case IEEE80211_HT_IE_CHA_SEC_ABOVE:
+ rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
+ break;
+ case IEEE80211_HT_IE_CHA_SEC_BELOW:
+ rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
+ break;
+ case IEEE80211_HT_IE_CHA_SEC_NONE:
+ default:
+ rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK;
+ break;
+ }
+
+ val = ht_info->ht_protection;
+
+ rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS);
+
+ iwl_set_rxon_chain(priv);
+
+ IWL_DEBUG_ASSOC("supported HT rate 0x%X 0x%X 0x%X "
+ "rxon flags 0x%X operation mode :0x%X "
+ "extension channel offset 0x%x "
+ "control chan %d\n",
+ ht_info->supp_mcs_set[0],
+ ht_info->supp_mcs_set[1],
+ ht_info->supp_mcs_set[2],
+ le32_to_cpu(rxon->flags), ht_info->ht_protection,
+ ht_info->extension_chan_offset,
+ ht_info->control_channel);
+ return;
+}
+EXPORT_SYMBOL(iwl_set_rxon_ht);
+
+/*
+ * Determine how many receiver/antenna chains to use.
+ * More provides better reception via diversity. Fewer saves power.
+ * MIMO (dual stream) requires at least 2, but works better with 3.
+ * This does not determine *which* chains to use, just how many.
+ */
+static int iwlcore_get_rx_chain_counter(struct iwl_priv *priv,
+ u8 *idle_state, u8 *rx_state)
+{
+ u8 is_single = is_single_rx_stream(priv);
+ u8 is_cam = test_bit(STATUS_POWER_PMI, &priv->status) ? 0 : 1;
+
+ /* # of Rx chains to use when expecting MIMO. */
+ if (is_single || (!is_cam && (priv->ps_mode == IWL_MIMO_PS_STATIC)))
+ *rx_state = 2;
+ else
+ *rx_state = 3;
+
+ /* # Rx chains when idling and maybe trying to save power */
+ switch (priv->ps_mode) {
+ case IWL_MIMO_PS_STATIC:
+ case IWL_MIMO_PS_DYNAMIC:
+ *idle_state = (is_cam) ? 2 : 1;
+ break;
+ case IWL_MIMO_PS_NONE:
+ *idle_state = (is_cam) ? *rx_state : 1;
+ break;
+ default:
+ *idle_state = 1;
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
+ *
+ * Selects how many and which Rx receivers/antennas/chains to use.
+ * This should not be used for scan command ... it puts data in wrong place.
+ */
+void iwl_set_rxon_chain(struct iwl_priv *priv)
+{
+ u8 is_single = is_single_rx_stream(priv);
+ u8 idle_state, rx_state;
+
+ priv->staging_rxon.rx_chain = 0;
+ rx_state = idle_state = 3;
+
+ /* Tell uCode which antennas are actually connected.
+ * Before first association, we assume all antennas are connected.
+ * Just after first association, iwl_chain_noise_calibration()
+ * checks which antennas actually *are* connected. */
+ priv->staging_rxon.rx_chain |=
+ cpu_to_le16(priv->hw_params.valid_rx_ant <<
+ RXON_RX_CHAIN_VALID_POS);
+
+ /* How many receivers should we use? */
+ iwlcore_get_rx_chain_counter(priv, &idle_state, &rx_state);
+ priv->staging_rxon.rx_chain |=
+ cpu_to_le16(rx_state << RXON_RX_CHAIN_MIMO_CNT_POS);
+ priv->staging_rxon.rx_chain |=
+ cpu_to_le16(idle_state << RXON_RX_CHAIN_CNT_POS);
+
+ if (!is_single && (rx_state >= 2) &&
+ !test_bit(STATUS_POWER_PMI, &priv->status))
+ priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
+ else
+ priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
+
+ IWL_DEBUG_ASSOC("rx chain %X\n", priv->staging_rxon.rx_chain);
+}
+EXPORT_SYMBOL(iwl_set_rxon_chain);
/**
* iwlcore_set_rxon_channel - Set the phymode and channel values in staging RXON
@@ -188,7 +783,7 @@ EXPORT_SYMBOL(iwlcore_reset_qos);
* NOTE: Does not commit to the hardware; it sets appropriate bit fields
* in the staging RXON flag structure based on the phymode
*/
-int iwlcore_set_rxon_channel(struct iwl_priv *priv,
+int iwl_set_rxon_channel(struct iwl_priv *priv,
enum ieee80211_band band,
u16 channel)
{
@@ -214,68 +809,185 @@ int iwlcore_set_rxon_channel(struct iwl_priv *priv,
return 0;
}
-EXPORT_SYMBOL(iwlcore_set_rxon_channel);
+EXPORT_SYMBOL(iwl_set_rxon_channel);
-static void iwlcore_init_hw(struct iwl_priv *priv)
+int iwl_setup_mac(struct iwl_priv *priv)
{
+ int ret;
struct ieee80211_hw *hw = priv->hw;
hw->rate_control_algorithm = "iwl-4965-rs";
- /* Tell mac80211 and its clients (e.g. Wireless Extensions)
- * the range of signal quality values that we'll provide.
- * Negative values for level/noise indicate that we'll provide dBm.
- * For WE, at least, non-0 values here *enable* display of values
- * in app (iwconfig). */
- hw->max_rssi = -20; /* signal level, negative indicates dBm */
- hw->max_noise = -20; /* noise level, negative indicates dBm */
- hw->max_signal = 100; /* link quality indication (%) */
-
- /* Tell mac80211 our Tx characteristics */
- hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE;
-
+ /* Tell mac80211 our characteristics */
+ hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
+ IEEE80211_HW_SIGNAL_DBM |
+ IEEE80211_HW_NOISE_DBM;
/* Default value; 4 EDCA QOS priorities */
hw->queues = 4;
-#ifdef CONFIG_IWL4965_HT
- /* Enhanced value; more queues, to support 11n aggregation */
- hw->queues = 16;
-#endif /* CONFIG_IWL4965_HT */
+ /* queues to support 11n aggregation */
+ if (priv->cfg->sku & IWL_SKU_N)
+ hw->ampdu_queues = priv->cfg->mod_params->num_of_ampdu_queues;
+
+ hw->conf.beacon_int = 100;
+
+ if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
+ priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
+ &priv->bands[IEEE80211_BAND_2GHZ];
+ if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
+ priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
+ &priv->bands[IEEE80211_BAND_5GHZ];
+
+ ret = ieee80211_register_hw(priv->hw);
+ if (ret) {
+ IWL_ERROR("Failed to register hw (error %d)\n", ret);
+ return ret;
+ }
+ priv->mac80211_registered = 1;
+
+ return 0;
}
+EXPORT_SYMBOL(iwl_setup_mac);
-int iwl_setup(struct iwl_priv *priv)
+int iwl_set_hw_params(struct iwl_priv *priv)
{
- int ret = 0;
- iwlcore_init_hw(priv);
- ret = priv->cfg->ops->lib->init_drv(priv);
- return ret;
+ priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto;
+ priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
+ priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
+ if (priv->cfg->mod_params->amsdu_size_8K)
+ priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K;
+ else
+ priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K;
+ priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256;
+
+ if (priv->cfg->mod_params->disable_11n)
+ priv->cfg->sku &= ~IWL_SKU_N;
+
+ /* Device-specific setup */
+ return priv->cfg->ops->lib->set_hw_params(priv);
}
-EXPORT_SYMBOL(iwl_setup);
+EXPORT_SYMBOL(iwl_set_hw_params);
-/* Low level driver call this function to update iwlcore with
- * driver status.
- */
-int iwlcore_low_level_notify(struct iwl_priv *priv,
- enum iwlcore_card_notify notify)
+int iwl_init_drv(struct iwl_priv *priv)
{
int ret;
- switch (notify) {
- case IWLCORE_INIT_EVT:
- ret = iwl_rfkill_init(priv);
- if (ret)
- IWL_ERROR("Unable to initialize RFKILL system. "
- "Ignoring error: %d\n", ret);
- break;
- case IWLCORE_START_EVT:
- break;
- case IWLCORE_STOP_EVT:
- break;
- case IWLCORE_REMOVE_EVT:
- iwl_rfkill_unregister(priv);
- break;
+
+ priv->retry_rate = 1;
+ priv->ibss_beacon = NULL;
+
+ spin_lock_init(&priv->lock);
+ spin_lock_init(&priv->power_data.lock);
+ spin_lock_init(&priv->sta_lock);
+ spin_lock_init(&priv->hcmd_lock);
+ spin_lock_init(&priv->lq_mngr.lock);
+
+ INIT_LIST_HEAD(&priv->free_frames);
+
+ mutex_init(&priv->mutex);
+
+ /* Clear the driver's (not device's) station table */
+ iwl_clear_stations_table(priv);
+
+ priv->data_retry_limit = -1;
+ priv->ieee_channels = NULL;
+ priv->ieee_rates = NULL;
+ priv->band = IEEE80211_BAND_2GHZ;
+
+ priv->iw_mode = IEEE80211_IF_TYPE_STA;
+
+ priv->use_ant_b_for_management_frame = 1; /* start with ant B */
+ priv->ps_mode = IWL_MIMO_PS_NONE;
+
+ /* Choose which receivers/antennas to use */
+ iwl_set_rxon_chain(priv);
+ iwl_init_scan_params(priv);
+
+ if (priv->cfg->mod_params->enable_qos)
+ priv->qos_data.qos_enable = 1;
+
+ iwl_reset_qos(priv);
+
+ priv->qos_data.qos_active = 0;
+ priv->qos_data.qos_cap.val = 0;
+
+ iwl_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6);
+
+ priv->rates_mask = IWL_RATES_MASK;
+ /* If power management is turned on, default to AC mode */
+ priv->power_mode = IWL_POWER_AC;
+ priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX;
+
+ ret = iwl_init_channel_map(priv);
+ if (ret) {
+ IWL_ERROR("initializing regulatory failed: %d\n", ret);
+ goto err;
+ }
+
+ ret = iwlcore_init_geos(priv);
+ if (ret) {
+ IWL_ERROR("initializing geos failed: %d\n", ret);
+ goto err_free_channel_map;
}
return 0;
+
+err_free_channel_map:
+ iwl_free_channel_map(priv);
+err:
+ return ret;
+}
+EXPORT_SYMBOL(iwl_init_drv);
+
+void iwl_free_calib_results(struct iwl_priv *priv)
+{
+ kfree(priv->calib_results.lo_res);
+ priv->calib_results.lo_res = NULL;
+ priv->calib_results.lo_res_len = 0;
+
+ kfree(priv->calib_results.tx_iq_res);
+ priv->calib_results.tx_iq_res = NULL;
+ priv->calib_results.tx_iq_res_len = 0;
+
+ kfree(priv->calib_results.tx_iq_perd_res);
+ priv->calib_results.tx_iq_perd_res = NULL;
+ priv->calib_results.tx_iq_perd_res_len = 0;
+}
+EXPORT_SYMBOL(iwl_free_calib_results);
+
+int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
+{
+ int ret = 0;
+ if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) {
+ IWL_WARNING("Requested user TXPOWER %d below limit.\n",
+ priv->tx_power_user_lmt);
+ return -EINVAL;
+ }
+
+ if (tx_power > IWL_TX_POWER_TARGET_POWER_MAX) {
+ IWL_WARNING("Requested user TXPOWER %d above limit.\n",
+ priv->tx_power_user_lmt);
+ return -EINVAL;
+ }
+
+ if (priv->tx_power_user_lmt != tx_power)
+ force = true;
+
+ priv->tx_power_user_lmt = tx_power;
+
+ if (force && priv->cfg->ops->lib->send_tx_power)
+ ret = priv->cfg->ops->lib->send_tx_power(priv);
+
+ return ret;
+}
+EXPORT_SYMBOL(iwl_set_tx_power);
+
+
+void iwl_uninit_drv(struct iwl_priv *priv)
+{
+ iwl_free_calib_results(priv);
+ iwlcore_free_geos(priv);
+ iwl_free_channel_map(priv);
+ kfree(priv->scan);
}
-EXPORT_SYMBOL(iwlcore_low_level_notify);
+EXPORT_SYMBOL(iwl_uninit_drv);
int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags)
{
@@ -290,3 +1002,440 @@ int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags)
}
EXPORT_SYMBOL(iwl_send_statistics_request);
+/**
+ * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
+ * using sample data 100 bytes apart. If these sample points are good,
+ * it's a pretty good bet that everything between them is good, too.
+ */
+static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
+{
+ u32 val;
+ int ret = 0;
+ u32 errcnt = 0;
+ u32 i;
+
+ IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
+
+ ret = iwl_grab_nic_access(priv);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
+ /* read data comes through single port, auto-incr addr */
+ /* NOTE: Use the debugless read so we don't flood kernel log
+ * if IWL_DL_IO is set */
+ iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
+ i + RTC_INST_LOWER_BOUND);
+ val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+ if (val != le32_to_cpu(*image)) {
+ ret = -EIO;
+ errcnt++;
+ if (errcnt >= 3)
+ break;
+ }
+ }
+
+ iwl_release_nic_access(priv);
+
+ return ret;
+}
+
+/**
+ * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host,
+ * looking at all data.
+ */
+static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image,
+ u32 len)
+{
+ u32 val;
+ u32 save_len = len;
+ int ret = 0;
+ u32 errcnt;
+
+ IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
+
+ ret = iwl_grab_nic_access(priv);
+ if (ret)
+ return ret;
+
+ iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND);
+
+ errcnt = 0;
+ for (; len > 0; len -= sizeof(u32), image++) {
+ /* read data comes through single port, auto-incr addr */
+ /* NOTE: Use the debugless read so we don't flood kernel log
+ * if IWL_DL_IO is set */
+ val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+ if (val != le32_to_cpu(*image)) {
+ IWL_ERROR("uCode INST section is invalid at "
+ "offset 0x%x, is 0x%x, s/b 0x%x\n",
+ save_len - len, val, le32_to_cpu(*image));
+ ret = -EIO;
+ errcnt++;
+ if (errcnt >= 20)
+ break;
+ }
+ }
+
+ iwl_release_nic_access(priv);
+
+ if (!errcnt)
+ IWL_DEBUG_INFO
+ ("ucode image in INSTRUCTION memory is good\n");
+
+ return ret;
+}
+
+/**
+ * iwl_verify_ucode - determine which instruction image is in SRAM,
+ * and verify its contents
+ */
+int iwl_verify_ucode(struct iwl_priv *priv)
+{
+ __le32 *image;
+ u32 len;
+ int ret;
+
+ /* Try bootstrap */
+ image = (__le32 *)priv->ucode_boot.v_addr;
+ len = priv->ucode_boot.len;
+ ret = iwlcore_verify_inst_sparse(priv, image, len);
+ if (!ret) {
+ IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ /* Try initialize */
+ image = (__le32 *)priv->ucode_init.v_addr;
+ len = priv->ucode_init.len;
+ ret = iwlcore_verify_inst_sparse(priv, image, len);
+ if (!ret) {
+ IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ /* Try runtime/protocol */
+ image = (__le32 *)priv->ucode_code.v_addr;
+ len = priv->ucode_code.len;
+ ret = iwlcore_verify_inst_sparse(priv, image, len);
+ if (!ret) {
+ IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
+
+ /* Since nothing seems to match, show first several data entries in
+ * instruction SRAM, so maybe visual inspection will give a clue.
+ * Selection of bootstrap image (vs. other images) is arbitrary. */
+ image = (__le32 *)priv->ucode_boot.v_addr;
+ len = priv->ucode_boot.len;
+ ret = iwl_verify_inst_full(priv, image, len);
+
+ return ret;
+}
+EXPORT_SYMBOL(iwl_verify_ucode);
+
+
+static const char *desc_lookup(int i)
+{
+ switch (i) {
+ case 1:
+ return "FAIL";
+ case 2:
+ return "BAD_PARAM";
+ case 3:
+ return "BAD_CHECKSUM";
+ case 4:
+ return "NMI_INTERRUPT";
+ case 5:
+ return "SYSASSERT";
+ case 6:
+ return "FATAL_ERROR";
+ }
+
+ return "UNKNOWN";
+}
+
+#define ERROR_START_OFFSET (1 * sizeof(u32))
+#define ERROR_ELEM_SIZE (7 * sizeof(u32))
+
+void iwl_dump_nic_error_log(struct iwl_priv *priv)
+{
+ u32 data2, line;
+ u32 desc, time, count, base, data1;
+ u32 blink1, blink2, ilink1, ilink2;
+ int ret;
+
+ if (priv->ucode_type == UCODE_INIT)
+ base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
+ else
+ base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
+
+ if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
+ IWL_ERROR("Not valid error log pointer 0x%08X\n", base);
+ return;
+ }
+
+ ret = iwl_grab_nic_access(priv);
+ if (ret) {
+ IWL_WARNING("Can not read from adapter at this time.\n");
+ return;
+ }
+
+ count = iwl_read_targ_mem(priv, base);
+
+ if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
+ IWL_ERROR("Start IWL Error Log Dump:\n");
+ IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count);
+ }
+
+ desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
+ blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32));
+ blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32));
+ ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32));
+ ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32));
+ data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32));
+ data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32));
+ line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32));
+ time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32));
+
+ IWL_ERROR("Desc Time "
+ "data1 data2 line\n");
+ IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
+ desc_lookup(desc), desc, time, data1, data2, line);
+ IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
+ IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2,
+ ilink1, ilink2);
+
+ iwl_release_nic_access(priv);
+}
+EXPORT_SYMBOL(iwl_dump_nic_error_log);
+
+#define EVENT_START_OFFSET (4 * sizeof(u32))
+
+/**
+ * iwl_print_event_log - Dump error event log to syslog
+ *
+ * NOTE: Must be called with iwl4965_grab_nic_access() already obtained!
+ */
+void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
+ u32 num_events, u32 mode)
+{
+ u32 i;
+ u32 base; /* SRAM byte address of event log header */
+ u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
+ u32 ptr; /* SRAM byte address of log data */
+ u32 ev, time, data; /* event log data */
+
+ if (num_events == 0)
+ return;
+ if (priv->ucode_type == UCODE_INIT)
+ base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
+ else
+ base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+
+ if (mode == 0)
+ event_size = 2 * sizeof(u32);
+ else
+ event_size = 3 * sizeof(u32);
+
+ ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
+
+ /* "time" is actually "data" for mode 0 (no timestamp).
+ * place event id # at far right for easier visual parsing. */
+ for (i = 0; i < num_events; i++) {
+ ev = iwl_read_targ_mem(priv, ptr);
+ ptr += sizeof(u32);
+ time = iwl_read_targ_mem(priv, ptr);
+ ptr += sizeof(u32);
+ if (mode == 0) {
+ /* data, ev */
+ IWL_ERROR("EVT_LOG:0x%08x:%04u\n", time, ev);
+ } else {
+ data = iwl_read_targ_mem(priv, ptr);
+ ptr += sizeof(u32);
+ IWL_ERROR("EVT_LOGT:%010u:0x%08x:%04u\n",
+ time, data, ev);
+ }
+ }
+}
+EXPORT_SYMBOL(iwl_print_event_log);
+
+
+void iwl_dump_nic_event_log(struct iwl_priv *priv)
+{
+ int ret;
+ u32 base; /* SRAM byte address of event log header */
+ u32 capacity; /* event log capacity in # entries */
+ u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
+ u32 num_wraps; /* # times uCode wrapped to top of log */
+ u32 next_entry; /* index of next entry to be written by uCode */
+ u32 size; /* # entries that we'll print */
+
+ if (priv->ucode_type == UCODE_INIT)
+ base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
+ else
+ base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+
+ if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
+ IWL_ERROR("Invalid event log pointer 0x%08X\n", base);
+ return;
+ }
+
+ ret = iwl_grab_nic_access(priv);
+ if (ret) {
+ IWL_WARNING("Can not read from adapter at this time.\n");
+ return;
+ }
+
+ /* event log header */
+ capacity = iwl_read_targ_mem(priv, base);
+ mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
+ num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
+ next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
+
+ size = num_wraps ? capacity : next_entry;
+
+ /* bail out if nothing in log */
+ if (size == 0) {
+ IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
+ iwl_release_nic_access(priv);
+ return;
+ }
+
+ IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
+ size, num_wraps);
+
+ /* if uCode has wrapped back to top of log, start at the oldest entry,
+ * i.e the next one that uCode would fill. */
+ if (num_wraps)
+ iwl_print_event_log(priv, next_entry,
+ capacity - next_entry, mode);
+ /* (then/else) start at top of log */
+ iwl_print_event_log(priv, 0, next_entry, mode);
+
+ iwl_release_nic_access(priv);
+}
+EXPORT_SYMBOL(iwl_dump_nic_event_log);
+
+void iwl_rf_kill_ct_config(struct iwl_priv *priv)
+{
+ struct iwl_ct_kill_config cmd;
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ cmd.critical_temperature_R =
+ cpu_to_le32(priv->hw_params.ct_kill_threshold);
+
+ ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
+ sizeof(cmd), &cmd);
+ if (ret)
+ IWL_ERROR("REPLY_CT_KILL_CONFIG_CMD failed\n");
+ else
+ IWL_DEBUG_INFO("REPLY_CT_KILL_CONFIG_CMD succeeded, "
+ "critical temperature is %d\n",
+ cmd.critical_temperature_R);
+}
+EXPORT_SYMBOL(iwl_rf_kill_ct_config);
+
+/*
+ * CARD_STATE_CMD
+ *
+ * Use: Sets the device's internal card state to enable, disable, or halt
+ *
+ * When in the 'enable' state the card operates as normal.
+ * When in the 'disable' state, the card enters into a low power mode.
+ * When in the 'halt' state, the card is shut down and must be fully
+ * restarted to come back on.
+ */
+static int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag)
+{
+ struct iwl_host_cmd cmd = {
+ .id = REPLY_CARD_STATE_CMD,
+ .len = sizeof(u32),
+ .data = &flags,
+ .meta.flags = meta_flag,
+ };
+
+ return iwl_send_cmd(priv, &cmd);
+}
+
+void iwl_radio_kill_sw_disable_radio(struct iwl_priv *priv)
+{
+ unsigned long flags;
+
+ if (test_bit(STATUS_RF_KILL_SW, &priv->status))
+ return;
+
+ IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO OFF\n");
+
+ iwl_scan_cancel(priv);
+ /* FIXME: This is a workaround for AP */
+ if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_SW_BIT_RFKILL);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ /* call the host command only if no hw rf-kill set */
+ if (!test_bit(STATUS_RF_KILL_HW, &priv->status) &&
+ iwl_is_ready(priv))
+ iwl_send_card_state(priv,
+ CARD_STATE_CMD_DISABLE, 0);
+ set_bit(STATUS_RF_KILL_SW, &priv->status);
+ /* make sure mac80211 stop sending Tx frame */
+ if (priv->mac80211_registered)
+ ieee80211_stop_queues(priv->hw);
+ }
+}
+EXPORT_SYMBOL(iwl_radio_kill_sw_disable_radio);
+
+int iwl_radio_kill_sw_enable_radio(struct iwl_priv *priv)
+{
+ unsigned long flags;
+
+ if (!test_bit(STATUS_RF_KILL_SW, &priv->status))
+ return 0;
+
+ IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO ON\n");
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+ /* If the driver is up it will receive CARD_STATE_NOTIFICATION
+ * notification where it will clear SW rfkill status.
+ * Setting it here would break the handler. Only if the
+ * interface is down we can set here since we don't
+ * receive any further notification.
+ */
+ if (!priv->is_open)
+ clear_bit(STATUS_RF_KILL_SW, &priv->status);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ /* wake up ucode */
+ msleep(10);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl_read32(priv, CSR_UCODE_DRV_GP1);
+ if (!iwl_grab_nic_access(priv))
+ iwl_release_nic_access(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
+ IWL_DEBUG_RF_KILL("Can not turn radio back on - "
+ "disabled by HW switch\n");
+ return 0;
+ }
+
+ /* If the driver is already loaded, it will receive
+ * CARD_STATE_NOTIFICATION notifications and the handler will
+ * call restart to reload the driver.
+ */
+ return 1;
+}
+EXPORT_SYMBOL(iwl_radio_kill_sw_enable_radio);