diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.c | 12 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-commands.h | 14 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 84 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-scan.c | 5 |
4 files changed, 72 insertions, 43 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 4be7bd29ef6d..7df41163ded2 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -293,10 +293,12 @@ restart: queue_work(priv->workqueue, &priv->restart); } -static int is_fat_channel(__le32 rxon_flags) +static bool is_fat_channel(__le32 rxon_flags) { - return (rxon_flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) || - (rxon_flags & RXON_FLG_CHANNEL_MODE_MIXED_MSK); + int chan_mod = le32_to_cpu(rxon_flags & RXON_FLG_CHANNEL_MODE_MSK) + >> RXON_FLG_CHANNEL_MODE_POS; + return ((chan_mod == CHANNEL_MODE_PURE_40) || + (chan_mod == CHANNEL_MODE_MIXED)); } /* @@ -1490,7 +1492,7 @@ static int iwl4965_send_tx_power(struct iwl_priv *priv) struct iwl4965_txpowertable_cmd cmd = { 0 }; int ret; u8 band = 0; - u8 is_fat = 0; + bool is_fat = false; u8 ctrl_chan_high = 0; if (test_bit(STATUS_SCANNING, &priv->status)) { @@ -1568,7 +1570,7 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel) { int rc; u8 band = 0; - u8 is_fat = 0; + bool is_fat = false; u8 ctrl_chan_high = 0; struct iwl4965_channel_switch_cmd cmd = { 0 }; const struct iwl_channel_info *ch_info; diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h index 7b84d5246b36..e581dc323f0a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-commands.h +++ b/drivers/net/wireless/iwlwifi/iwl-commands.h @@ -614,8 +614,18 @@ enum { #define RXON_FLG_CHANNEL_MODE_POS (25) #define RXON_FLG_CHANNEL_MODE_MSK cpu_to_le32(0x3 << 25) -#define RXON_FLG_CHANNEL_MODE_PURE_40_MSK cpu_to_le32(0x1 << 25) -#define RXON_FLG_CHANNEL_MODE_MIXED_MSK cpu_to_le32(0x2 << 25) + +/* channel mode */ +enum { + CHANNEL_MODE_LEGACY = 0, + CHANNEL_MODE_PURE_40 = 1, + CHANNEL_MODE_MIXED = 2, + CHANNEL_MODE_RESERVED = 3, +}; +#define RXON_FLG_CHANNEL_MODE_LEGACY cpu_to_le32(CHANNEL_MODE_LEGACY << RXON_FLG_CHANNEL_MODE_POS) +#define RXON_FLG_CHANNEL_MODE_PURE_40 cpu_to_le32(CHANNEL_MODE_PURE_40 << RXON_FLG_CHANNEL_MODE_POS) +#define RXON_FLG_CHANNEL_MODE_MIXED cpu_to_le32(CHANNEL_MODE_MIXED << RXON_FLG_CHANNEL_MODE_POS) + /* CTS to self (if spec allows) flag */ #define RXON_FLG_SELF_CTS_EN cpu_to_le32(0x1<<30) diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index c7cbb2e80903..a15f7955845b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -617,19 +617,23 @@ u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv, 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_PARAM_CHA_SEC_NONE)) + (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ)) return 0; + /* We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40 + * the bit will not set if it is pure 40MHz case + */ if (sta_ht_inf) { - if ((!sta_ht_inf->ht_supported) || - (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))) + if (!sta_ht_inf->ht_supported) return 0; } - return iwl_is_channel_extension(priv, priv->band, - le16_to_cpu(priv->staging_rxon.channel), - iwl_ht_conf->extension_chan_offset); + if (iwl_ht_conf->ht_protection & IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) + return 1; + else + return iwl_is_channel_extension(priv, priv->band, + le16_to_cpu(priv->staging_rxon.channel), + iwl_ht_conf->extension_chan_offset); } EXPORT_SYMBOL(iwl_is_fat_tx_allowed); @@ -799,42 +803,51 @@ EXPORT_SYMBOL(iwl_rate_get_lowest_plcp); 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) { - rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | - RXON_FLG_CHANNEL_MODE_PURE_40_MSK | + rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | RXON_FLG_FAT_PROT_MSK | RXON_FLG_HT_PROT_MSK); 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); - - /* Note: control channel is opposite of extension channel */ - switch (ht_info->extension_chan_offset) { - case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: - rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); - break; - case IEEE80211_HT_PARAM_CHA_SEC_BELOW: - rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; - break; - case IEEE80211_HT_PARAM_CHA_SEC_NONE: - default: - rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK; - break; + /* FIXME: if the definition of ht_protection changed, the "translation" + * will be needed for rxon->flags + */ + rxon->flags |= cpu_to_le32(ht_info->ht_protection << RXON_FLG_HT_OPERATING_MODE_POS); + + /* Set up channel bandwidth: + * 20 MHz only, 20/40 mixed or pure 40 if fat ok */ + /* clear the HT channel mode before set the mode */ + rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | + RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); + if (iwl_is_fat_tx_allowed(priv, NULL)) { + /* pure 40 fat */ + if (rxon->flags & RXON_FLG_FAT_PROT_MSK) + rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; + else { + /* Note: control channel is opposite of extension channel */ + switch (ht_info->extension_chan_offset) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); + rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; + break; + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; + rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; + break; + case IEEE80211_HT_PARAM_CHA_SEC_NONE: + default: + /* channel location only valid if in Mixed mode */ + IWL_ERR(priv, "invalid extension channel offset\n"); + break; + } + } + } else { + rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY; } - val = ht_info->ht_protection; - - rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS); - if (priv->cfg->ops->hcmd->set_rxon_chain) priv->cfg->ops->hcmd->set_rxon_chain(priv); @@ -1122,8 +1135,9 @@ void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode) priv->staging_rxon.cck_basic_rates = (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; - priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | - RXON_FLG_CHANNEL_MODE_PURE_40_MSK); + /* clear both MIX and PURE40 mode flag */ + priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED | + RXON_FLG_CHANNEL_MODE_PURE_40); memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index 065214b55895..f6d4af5c7509 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -586,6 +586,7 @@ static void iwl_bg_request_scan(struct work_struct *data) u8 rx_ant = priv->hw_params.valid_rx_ant; u8 rate; bool is_active = false; + int chan_mod; conf = ieee80211_get_hw_conf(priv->hw); @@ -703,7 +704,9 @@ static void iwl_bg_request_scan(struct work_struct *data) if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { band = IEEE80211_BAND_2GHZ; scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; - if (priv->active_rxon.flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) { + chan_mod = le32_to_cpu(priv->active_rxon.flags & RXON_FLG_CHANNEL_MODE_MSK) + >> RXON_FLG_CHANNEL_MODE_POS; + if (chan_mod == CHANNEL_MODE_PURE_40) { rate = IWL_RATE_6M_PLCP; } else { rate = IWL_RATE_1M_PLCP; |