diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-rxon.c | 103 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 102 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.h | 2 |
3 files changed, 103 insertions, 104 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c index 4839ad348948..f6784b3a5ce3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c @@ -189,6 +189,109 @@ static int iwlagn_send_rxon_assoc(struct iwl_priv *priv, return ret; } +static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val) +{ + u16 new_val; + u16 beacon_factor; + + /* + * If mac80211 hasn't given us a beacon interval, program + * the default into the device (not checking this here + * would cause the adjustment below to return the maximum + * value, which may break PAN.) + */ + if (!beacon_val) + return DEFAULT_BEACON_INTERVAL; + + /* + * If the beacon interval we obtained from the peer + * is too large, we'll have to wake up more often + * (and in IBSS case, we'll beacon too much) + * + * For example, if max_beacon_val is 4096, and the + * requested beacon interval is 7000, we'll have to + * use 3500 to be able to wake up on the beacons. + * + * This could badly influence beacon detection stats. + */ + + beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val; + new_val = beacon_val / beacon_factor; + + if (!new_val) + new_val = max_beacon_val; + + return new_val; +} + +static int iwl_send_rxon_timing(struct iwl_priv *priv, + struct iwl_rxon_context *ctx) +{ + u64 tsf; + s32 interval_tm, rem; + struct ieee80211_conf *conf = NULL; + u16 beacon_int; + struct ieee80211_vif *vif = ctx->vif; + + conf = &priv->hw->conf; + + lockdep_assert_held(&priv->mutex); + + memset(&ctx->timing, 0, sizeof(struct iwl_rxon_time_cmd)); + + ctx->timing.timestamp = cpu_to_le64(priv->timestamp); + ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval); + + beacon_int = vif ? vif->bss_conf.beacon_int : 0; + + /* + * TODO: For IBSS we need to get atim_window from mac80211, + * for now just always use 0 + */ + ctx->timing.atim_window = 0; + + if (ctx->ctxid == IWL_RXON_CTX_PAN && + (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION) && + iwl_is_associated(priv, IWL_RXON_CTX_BSS) && + priv->contexts[IWL_RXON_CTX_BSS].vif && + priv->contexts[IWL_RXON_CTX_BSS].vif->bss_conf.beacon_int) { + ctx->timing.beacon_interval = + priv->contexts[IWL_RXON_CTX_BSS].timing.beacon_interval; + beacon_int = le16_to_cpu(ctx->timing.beacon_interval); + } else if (ctx->ctxid == IWL_RXON_CTX_BSS && + iwl_is_associated(priv, IWL_RXON_CTX_PAN) && + priv->contexts[IWL_RXON_CTX_PAN].vif && + priv->contexts[IWL_RXON_CTX_PAN].vif->bss_conf.beacon_int && + (!iwl_is_associated_ctx(ctx) || !ctx->vif || + !ctx->vif->bss_conf.beacon_int)) { + ctx->timing.beacon_interval = + priv->contexts[IWL_RXON_CTX_PAN].timing.beacon_interval; + beacon_int = le16_to_cpu(ctx->timing.beacon_interval); + } else { + beacon_int = iwl_adjust_beacon_interval(beacon_int, + IWL_MAX_UCODE_BEACON_INTERVAL * TIME_UNIT); + ctx->timing.beacon_interval = cpu_to_le16(beacon_int); + } + + ctx->beacon_int = beacon_int; + + tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ + interval_tm = beacon_int * TIME_UNIT; + rem = do_div(tsf, interval_tm); + ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem); + + ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1; + + IWL_DEBUG_ASSOC(priv, + "beacon interval %d beacon timer %d beacon tim %d\n", + le16_to_cpu(ctx->timing.beacon_interval), + le32_to_cpu(ctx->timing.beacon_init_val), + le16_to_cpu(ctx->timing.atim_window)); + + return iwl_dvm_send_cmd_pdu(priv, ctx->rxon_timing_cmd, + CMD_SYNC, sizeof(ctx->timing), &ctx->timing); +} + static int iwlagn_rxon_disconn(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 06bcf279991d..796f4a119b0d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -88,108 +88,6 @@ bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv, ctx->ht.extension_chan_offset); } -static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val) -{ - u16 new_val; - u16 beacon_factor; - - /* - * If mac80211 hasn't given us a beacon interval, program - * the default into the device (not checking this here - * would cause the adjustment below to return the maximum - * value, which may break PAN.) - */ - if (!beacon_val) - return DEFAULT_BEACON_INTERVAL; - - /* - * If the beacon interval we obtained from the peer - * is too large, we'll have to wake up more often - * (and in IBSS case, we'll beacon too much) - * - * For example, if max_beacon_val is 4096, and the - * requested beacon interval is 7000, we'll have to - * use 3500 to be able to wake up on the beacons. - * - * This could badly influence beacon detection stats. - */ - - beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val; - new_val = beacon_val / beacon_factor; - - if (!new_val) - new_val = max_beacon_val; - - return new_val; -} - -int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx) -{ - u64 tsf; - s32 interval_tm, rem; - struct ieee80211_conf *conf = NULL; - u16 beacon_int; - struct ieee80211_vif *vif = ctx->vif; - - conf = &priv->hw->conf; - - lockdep_assert_held(&priv->mutex); - - memset(&ctx->timing, 0, sizeof(struct iwl_rxon_time_cmd)); - - ctx->timing.timestamp = cpu_to_le64(priv->timestamp); - ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval); - - beacon_int = vif ? vif->bss_conf.beacon_int : 0; - - /* - * TODO: For IBSS we need to get atim_window from mac80211, - * for now just always use 0 - */ - ctx->timing.atim_window = 0; - - if (ctx->ctxid == IWL_RXON_CTX_PAN && - (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION) && - iwl_is_associated(priv, IWL_RXON_CTX_BSS) && - priv->contexts[IWL_RXON_CTX_BSS].vif && - priv->contexts[IWL_RXON_CTX_BSS].vif->bss_conf.beacon_int) { - ctx->timing.beacon_interval = - priv->contexts[IWL_RXON_CTX_BSS].timing.beacon_interval; - beacon_int = le16_to_cpu(ctx->timing.beacon_interval); - } else if (ctx->ctxid == IWL_RXON_CTX_BSS && - iwl_is_associated(priv, IWL_RXON_CTX_PAN) && - priv->contexts[IWL_RXON_CTX_PAN].vif && - priv->contexts[IWL_RXON_CTX_PAN].vif->bss_conf.beacon_int && - (!iwl_is_associated_ctx(ctx) || !ctx->vif || - !ctx->vif->bss_conf.beacon_int)) { - ctx->timing.beacon_interval = - priv->contexts[IWL_RXON_CTX_PAN].timing.beacon_interval; - beacon_int = le16_to_cpu(ctx->timing.beacon_interval); - } else { - beacon_int = iwl_adjust_beacon_interval(beacon_int, - IWL_MAX_UCODE_BEACON_INTERVAL * TIME_UNIT); - ctx->timing.beacon_interval = cpu_to_le16(beacon_int); - } - - ctx->beacon_int = beacon_int; - - tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ - interval_tm = beacon_int * TIME_UNIT; - rem = do_div(tsf, interval_tm); - ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem); - - ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1; - - IWL_DEBUG_ASSOC(priv, - "beacon interval %d beacon timer %d beacon tim %d\n", - le16_to_cpu(ctx->timing.beacon_interval), - le32_to_cpu(ctx->timing.beacon_init_val), - le16_to_cpu(ctx->timing.atim_window)); - - return iwl_dvm_send_cmd_pdu(priv, ctx->rxon_timing_cmd, - CMD_SYNC, sizeof(ctx->timing), &ctx->timing); -} - void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx, int hw_decrypt) { diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index 8a7d6fc8a685..7217be8ee3db 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -208,8 +208,6 @@ extern void iwl_send_bt_config(struct iwl_priv *priv); extern int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear); -int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx); - static inline const struct ieee80211_supported_band *iwl_get_hw_mode( struct iwl_priv *priv, enum ieee80211_band band) { |