From b3781c74373489fa325ce64efdf72f6c8567b783 Mon Sep 17 00:00:00 2001 From: Andrey Yurovsky Date: Fri, 12 Jun 2009 12:45:36 -0700 Subject: libertas: fix IEEE PS mode in GSPI driver The card firmware does not set the Command Download Ready interrupt bit when IEEE PS mode is enabled, preventing the driver from sending commands (such as the command to exit IEEE PS mode) since there is no indication that the card is ready to accept commands. This patch works around the problem by using the the TX Download Ready bit in place of the Command Download Ready Bit while in IEEE PS mode. TX Download Ready is set in IEEE PS mode. Signed-off-by: Andrey Yurovsky Signed-off-by: Javier Cardona Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/if_spi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c index f8c2898d82b0..dc2a1f6ee36c 100644 --- a/drivers/net/wireless/libertas/if_spi.c +++ b/drivers/net/wireless/libertas/if_spi.c @@ -875,7 +875,12 @@ static int lbs_spi_thread(void *data) err = if_spi_c2h_data(card); if (err) goto err; - if (hiStatus & IF_SPI_HIST_CMD_DOWNLOAD_RDY) { + + /* workaround: in PS mode, the card does not set the Command + * Download Ready bit, but it sets TX Download Ready. */ + if (hiStatus & IF_SPI_HIST_CMD_DOWNLOAD_RDY || + (card->priv->psstate != PS_STATE_FULL_POWER && + (hiStatus & IF_SPI_HIST_TX_DOWNLOAD_RDY))) { /* This means two things. First of all, * if there was a previous command sent, the card has * successfully received it. -- cgit v1.2.1 From 87e501b351ed9d837e63f6506b7e66331a69ed58 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Fri, 12 Jun 2009 21:37:31 +0200 Subject: net/libertas: don't recursive spin lock in if_spi_e2h() |BUG: spinlock recursion on CPU#0, lbs_spi_thread/1030 | lock: dee9a1bc, .magic: dead4ead, .owner: lbs_spi_thread/1030, .owner_cpu: 0 |Call Trace: |[deec3eb0] [c0007220] show_stack+0x4c/0x15c (unreliable) |[deec3ef0] [c0187720] spin_bug+0x9c/0xb0 |[deec3f10] [c0187890] _raw_spin_lock+0x54/0x148 |[deec3f40] [c02d260c] _spin_lock_irqsave+0x2c/0x44 |[deec3f60] [e8671800] lbs_queue_event+0x7c/0x130 [libertas] |[deec3f80] [e8725f04] lbs_spi_thread+0x538/0x58c [libertas_spi] |[deec3fe0] [c004f270] kthread+0x4c/0x88 |[deec3ff0] [c000f33c] kernel_thread+0x4c/0x68 if_spi_e2h() is grabbing ->driver_lock just while calling lbs_queue_event() which is grabbing the same lock. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/if_spi.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c index dc2a1f6ee36c..923ed58d58e7 100644 --- a/drivers/net/wireless/libertas/if_spi.c +++ b/drivers/net/wireless/libertas/if_spi.c @@ -812,7 +812,6 @@ out: static void if_spi_e2h(struct if_spi_card *card) { int err = 0; - unsigned long flags; u32 cause; struct lbs_private *priv = card->priv; @@ -827,10 +826,7 @@ static void if_spi_e2h(struct if_spi_card *card) /* generate a card interrupt */ spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG, IF_SPI_CIC_HOST_EVENT); - spin_lock_irqsave(&priv->driver_lock, flags); lbs_queue_event(priv, cause & 0xff); - spin_unlock_irqrestore(&priv->driver_lock, flags); - out: if (err) lbs_pr_err("%s: error %d\n", __func__, err); -- cgit v1.2.1 From d7129e190c3107db8ac11a9e51035641b68d2aa7 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 12 Jun 2009 13:22:48 -0700 Subject: iwlwifi: revamp bss_info_changed My earlier patch, "mac80211: unify config_interface and bss_info_changed" introduced a bug in iwlwifi where it will do some things incorrectly now when reassociating. Revamp iwl_bss_info_changed to fix that issue and make it easier to read. Also, while at it, add comments about things that it should do but currently doesn't. Finally, also improve the locking in the function. Signed-off-by: Johannes Berg Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-core.c | 114 ++++++++++++++++++++------------ 1 file changed, 70 insertions(+), 44 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index f9d16ca5b3d9..e05faa004dae 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -2390,39 +2390,46 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, priv->ibss_beacon = ieee80211_beacon_get(hw, vif); } - if ((changes & BSS_CHANGED_BSSID) && !iwl_is_rfkill(priv)) { - /* If there is currently a HW scan going on in the background - * then we need to cancel it else the RXON below will fail. */ + if (changes & BSS_CHANGED_BEACON_INT) { + priv->beacon_int = bss_conf->beacon_int; + /* TODO: in AP mode, do something to make this take effect */ + } + + if (changes & BSS_CHANGED_BSSID) { + IWL_DEBUG_MAC80211(priv, "BSSID %pM\n", bss_conf->bssid); + + /* + * If there is currently a HW scan going on in the + * background then we need to cancel it else the RXON + * below/in post_associate will fail. + */ if (iwl_scan_cancel_timeout(priv, 100)) { - IWL_WARN(priv, "Aborted scan still in progress " - "after 100ms\n"); + IWL_WARN(priv, "Aborted scan still in progress after 100ms\n"); IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n"); mutex_unlock(&priv->mutex); return; } - memcpy(priv->staging_rxon.bssid_addr, - bss_conf->bssid, ETH_ALEN); - /* TODO: Audit driver for usage of these members and see - * if mac80211 deprecates them (priv->bssid looks like it - * shouldn't be there, but I haven't scanned the IBSS code - * to verify) - jpk */ - memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); + /* mac80211 only sets assoc when in STATION mode */ + if (priv->iw_mode == NL80211_IFTYPE_ADHOC || + bss_conf->assoc) { + memcpy(priv->staging_rxon.bssid_addr, + bss_conf->bssid, ETH_ALEN); - if (priv->iw_mode == NL80211_IFTYPE_AP) - iwlcore_config_ap(priv); - else { - int rc = iwlcore_commit_rxon(priv); - if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc) - iwl_rxon_add_station( - priv, priv->active_rxon.bssid_addr, 1); + /* currently needed in a few places */ + memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); + } else { + priv->staging_rxon.filter_flags &= + ~RXON_FILTER_ASSOC_MSK; } - } else if (!iwl_is_rfkill(priv)) { - iwl_scan_cancel_timeout(priv, 100); - priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; - iwlcore_commit_rxon(priv); + } + /* + * This needs to be after setting the BSSID in case + * mac80211 decides to do both changes at once because + * it will invoke post_associate. + */ if (priv->iw_mode == NL80211_IFTYPE_ADHOC && changes & BSS_CHANGED_BEACON) { struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); @@ -2431,8 +2438,6 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, iwl_mac_beacon_update(hw, beacon); } - mutex_unlock(&priv->mutex); - if (changes & BSS_CHANGED_ERP_PREAMBLE) { IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n", bss_conf->use_short_preamble); @@ -2450,6 +2455,23 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; } + if (changes & BSS_CHANGED_BASIC_RATES) { + /* XXX use this information + * + * To do that, remove code from iwl_set_rate() and put something + * like this here: + * + if (A-band) + priv->staging_rxon.ofdm_basic_rates = + bss_conf->basic_rates; + else + priv->staging_rxon.ofdm_basic_rates = + bss_conf->basic_rates >> 4; + priv->staging_rxon.cck_basic_rates = + bss_conf->basic_rates & 0xF; + */ + } + if (changes & BSS_CHANGED_HT) { iwl_ht_conf(priv, bss_conf); @@ -2459,10 +2481,6 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, if (changes & BSS_CHANGED_ASSOC) { IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc); - /* This should never happen as this function should - * never be called from interrupt context. */ - if (WARN_ON_ONCE(in_interrupt())) - return; if (bss_conf->assoc) { priv->assoc_id = bss_conf->aid; priv->beacon_int = bss_conf->beacon_int; @@ -2470,27 +2488,35 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, priv->timestamp = bss_conf->timestamp; priv->assoc_capability = bss_conf->assoc_capability; - /* we have just associated, don't start scan too early - * leave time for EAPOL exchange to complete + /* + * 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; - mutex_lock(&priv->mutex); - priv->cfg->ops->lib->post_associate(priv); - mutex_unlock(&priv->mutex); - } else { + if (!iwl_is_rfkill(priv)) + priv->cfg->ops->lib->post_associate(priv); + } else priv->assoc_id = 0; - IWL_DEBUG_MAC80211(priv, "DISASSOC %d\n", bss_conf->assoc); + + } + + if (changes && iwl_is_associated(priv) && priv->assoc_id) { + IWL_DEBUG_MAC80211(priv, "Changes (%#x) while associated\n", + changes); + ret = iwl_send_rxon_assoc(priv); + if (!ret) { + /* Sync active_rxon with latest change. */ + memcpy((void *)&priv->active_rxon, + &priv->staging_rxon, + sizeof(struct iwl_rxon_cmd)); } - } else if (changes && iwl_is_associated(priv) && priv->assoc_id) { - IWL_DEBUG_MAC80211(priv, "Associated Changes %d\n", changes); - ret = iwl_send_rxon_assoc(priv); - if (!ret) - /* Sync active_rxon with latest change. */ - memcpy((void *)&priv->active_rxon, - &priv->staging_rxon, - sizeof(struct iwl_rxon_cmd)); } + + mutex_unlock(&priv->mutex); + IWL_DEBUG_MAC80211(priv, "leave\n"); } EXPORT_SYMBOL(iwl_bss_info_changed); -- cgit v1.2.1 From 8e8df3a08c6f3098b54639ee6892e3753ad5f210 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Fri, 12 Jun 2009 13:22:49 -0700 Subject: iwlwifi: checking for 40MHz mode when checking for 40MHz, compare ht_protection to IEEE80211_HT_OP_MODE_PROTECTION_20MHZ. ht_protection is not a bit-mask field Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index e05faa004dae..b2875fe12561 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -630,7 +630,7 @@ u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv, return 0; } - if (iwl_ht_conf->ht_protection & IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) + if (iwl_ht_conf->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) return 1; else return iwl_is_channel_extension(priv, priv->band, @@ -826,7 +826,7 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) 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) + if (ht_info->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; else { /* Note: control channel is opposite of extension channel */ -- cgit v1.2.1 From 508b08e7121f2083c9e9cd82f10b9088b6bc13fb Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Fri, 12 Jun 2009 13:22:50 -0700 Subject: iwlwifi: check control channel for pure 40MHz for pure 40MHz mode, set the control channel location if provided, but not like Mixed mode; if information is not provided, still allow 40MHz operation. Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-core.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index b2875fe12561..b122eedef369 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -826,9 +826,18 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); if (iwl_is_fat_tx_allowed(priv, NULL)) { /* pure 40 fat */ - if (ht_info->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) + if (ht_info->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { 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; + break; + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; + break; + } + } else { /* Note: control channel is opposite of extension channel */ switch (ht_info->extension_chan_offset) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: -- cgit v1.2.1 From 611d3eb72aa7847a1081e6c1ac05fd2012652cde Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Fri, 12 Jun 2009 13:22:51 -0700 Subject: iwlwifi: check for channel location for 40MHz for both mixed and pure 40MHz, need to check for valid channel location. if the specified channel not allow the channel location requested (ABOVE, BELOW), then reject the Fat channel access This fixes http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1988 ("iwlwifi: checking for 40MHz mode" and "iwlwifi: check control channel for pure 40MHz" combine with this to address the above bug. -- JWL) Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-core.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index b122eedef369..6ab07165ea28 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -629,13 +629,9 @@ u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv, if (!sta_ht_inf->ht_supported) return 0; } - - 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); + 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); -- cgit v1.2.1 From 8a9b99267cb3b51d4e59693c03e1204d86b42445 Mon Sep 17 00:00:00 2001 From: Abhijeet Kolekar Date: Fri, 12 Jun 2009 13:22:52 -0700 Subject: iwlwifi/iwl3945: fix suspend resume association bug Patch fixes the following bugs at http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=2005 http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=2007 If we suspend with an association and then resumed, we need to synchronize the active rxon with staging rxon, else we will get an error when iwl_alive_start try to commit rxon and staging is set to channel 0. Before going to suspend staging and active rxon are in sync. After resuming from the suspend, iwl_mac_start is called and it clears the staging rxon. Patch fixes the bug by not clearing the staging rxon in iwl_mac_start. Patch also adds similar fix to 3945. Signed-off-by: Abhijeet Kolekar Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn.c | 1 - drivers/net/wireless/iwlwifi/iwl3945-base.c | 4 +--- 2 files changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index a5637c4aa85d..6d1519e1f011 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -2152,7 +2152,6 @@ static int iwl_mac_start(struct ieee80211_hw *hw) /* we should be verifying the device is ready to be opened */ mutex_lock(&priv->mutex); - memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd)); /* fetch ucode file from disk, alloc and copy to bus-master buffers ... * ucode filename and max sizes are card-specific. */ diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 83d31606dd00..cb9bd4c8f25e 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -2498,8 +2498,7 @@ static void iwl3945_alive_start(struct iwl_priv *priv) struct iwl3945_rxon_cmd *active_rxon = (struct iwl3945_rxon_cmd *)(&priv->active_rxon); - memcpy(&priv->staging_rxon, &priv->active_rxon, - sizeof(priv->staging_rxon)); + priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; } else { /* Initialize our rx_config data */ @@ -3147,7 +3146,6 @@ static int iwl3945_mac_start(struct ieee80211_hw *hw) /* we should be verifying the device is ready to be opened */ mutex_lock(&priv->mutex); - memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); /* fetch ucode file from disk, alloc and copy to bus-master buffers ... * ucode filename and max sizes are card-specific. */ -- cgit v1.2.1 From 35edf8aae8f903b154d658b9a7eed0d5c1a4a814 Mon Sep 17 00:00:00 2001 From: Nick Kossifidis Date: Fri, 12 Jun 2009 16:09:53 -0700 Subject: ath5k: fix mesh beaconing This patch is from Nick Kossifidis but he forgot to send it. It ensures that the beacon queue gets started in mesh mode as well, otherwise ath5k will not beacon in mesh point mode. At this time, we still need to issue a scan before mesh beaconing will work but that appears to be a separate problem. Signed-off-by: Andrey Yurovsky Signed-off-by: Nick Kossifidis Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/pcu.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath5k/pcu.c b/drivers/net/wireless/ath/ath5k/pcu.c index ec35503f6a40..2942f13c9c4a 100644 --- a/drivers/net/wireless/ath/ath5k/pcu.c +++ b/drivers/net/wireless/ath/ath5k/pcu.c @@ -733,8 +733,9 @@ void ath5k_hw_init_beacon(struct ath5k_hw *ah, u32 next_beacon, u32 interval) /* * Set the beacon register and enable all timers. */ - /* When in AP mode zero timer0 to start TSF */ - if (ah->ah_op_mode == NL80211_IFTYPE_AP) + /* When in AP or Mesh Point mode zero timer0 to start TSF */ + if (ah->ah_op_mode == NL80211_IFTYPE_AP || + ah->ah_op_mode == NL80211_IFTYPE_MESH_POINT) ath5k_hw_reg_write(ah, 0, AR5K_TIMER0); ath5k_hw_reg_write(ah, next_beacon, AR5K_TIMER0); -- cgit v1.2.1 From 82880a7cf9c059c11cd6ad1868c48969956f966b Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Sat, 13 Jun 2009 14:50:24 +0530 Subject: ath9k: Add helper to get ath9k specific current channel Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index f7baa406918b..89bf07e66d10 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -231,6 +231,19 @@ static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band) } } +static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc, + struct ieee80211_hw *hw) +{ + struct ieee80211_channel *curchan = hw->conf.channel; + struct ath9k_channel *channel; + u8 chan_idx; + + chan_idx = curchan->hw_value; + channel = &sc->sc_ah->channels[chan_idx]; + ath9k_update_ichannel(sc, hw, channel); + return channel; +} + /* * Set/change channels. If the channel is really being changed, it's done * by reseting the chip. To accomplish this we must first cleanup any pending @@ -1920,7 +1933,7 @@ static int ath9k_start(struct ieee80211_hw *hw) struct ath_softc *sc = aphy->sc; struct ieee80211_channel *curchan = hw->conf.channel; struct ath9k_channel *init_channel; - int r, pos; + int r; DPRINTF(sc, ATH_DBG_CONFIG, "Starting driver with " "initial channel: %d MHz\n", curchan->center_freq); @@ -1950,11 +1963,9 @@ static int ath9k_start(struct ieee80211_hw *hw) /* setup initial channel */ - pos = curchan->hw_value; + sc->chan_idx = curchan->hw_value; - sc->chan_idx = pos; - init_channel = &sc->sc_ah->channels[pos]; - ath9k_update_ichannel(sc, hw, init_channel); + init_channel = ath_get_curchannel(sc, hw); /* Reset SERDES registers */ ath9k_hw_configpcipowersave(sc->sc_ah, 0); -- cgit v1.2.1 From 159cd468bc885f7a2fbc75bbfe782782e52ef9c9 Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Sat, 13 Jun 2009 14:50:25 +0530 Subject: ath9k: Make sure we have current channel in ah_curchan before rf disable/enable Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 89bf07e66d10..6516a426f6ce 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1123,6 +1123,9 @@ void ath_radio_enable(struct ath_softc *sc) ath9k_ps_wakeup(sc); ath9k_hw_configpcipowersave(ah, 0); + if (!ah->curchan) + ah->curchan = ath_get_curchannel(sc, sc->hw); + spin_lock_bh(&sc->sc_resetlock); r = ath9k_hw_reset(ah, ah->curchan, false); if (r) { @@ -1175,6 +1178,9 @@ void ath_radio_disable(struct ath_softc *sc) ath_stoprecv(sc); /* turn off frame recv */ ath_flushrecv(sc); /* flush recv queue */ + if (!ah->curchan) + ah->curchan = ath_get_curchannel(sc, sc->hw); + spin_lock_bh(&sc->sc_resetlock); r = ath9k_hw_reset(ah, ah->curchan, false); if (r) { -- cgit v1.2.1 From 3b319aae4244f9b4758212605f67cf63207a4fa1 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Sat, 13 Jun 2009 14:50:26 +0530 Subject: ath9k: port to cfg80211 rfkill This ports the ath9k rfkill code to the new API offered by cfg80211 and thus removes a lot of useless stuff. ("With this series a kernel panic, which is a regression, during module unload disappears." -- Vasanthakumar Thiagarajan Other patches in the series: ath9k: Add helper to get ath9k specific current channel ath9k: Make sure we have current channel in ah_curchan before rf disable/enable -- JWL) Signed-off-by: Johannes Berg Cc: Luis Rodriguez Tested-by: Vasanthakumar Thiagarajan Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/Kconfig | 1 - drivers/net/wireless/ath/ath9k/ath9k.h | 9 ---- drivers/net/wireless/ath/ath9k/hw.c | 29 +++++------ drivers/net/wireless/ath/ath9k/hw.h | 3 -- drivers/net/wireless/ath/ath9k/main.c | 94 +++++----------------------------- 5 files changed, 26 insertions(+), 110 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig index 0ed1ac312aa6..2d79610bce12 100644 --- a/drivers/net/wireless/ath/ath9k/Kconfig +++ b/drivers/net/wireless/ath/ath9k/Kconfig @@ -1,7 +1,6 @@ config ATH9K tristate "Atheros 802.11n wireless cards support" depends on PCI && MAC80211 && WLAN_80211 - depends on RFKILL || RFKILL=n select ATH_COMMON select MAC80211_LEDS select LEDS_CLASS diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 515880aa2116..a6e65ff4bb2d 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -21,7 +21,6 @@ #include #include #include -#include #include "hw.h" #include "rc.h" @@ -460,12 +459,6 @@ struct ath_led { bool registered; }; -struct ath_rfkill { - struct rfkill *rfkill; - struct rfkill_ops ops; - char rfkill_name[32]; -}; - /********************/ /* Main driver core */ /********************/ @@ -505,7 +498,6 @@ struct ath_rfkill { #define SC_OP_PROTECT_ENABLE BIT(6) #define SC_OP_RXFLUSH BIT(7) #define SC_OP_LED_ASSOCIATED BIT(8) -#define SC_OP_RFKILL_REGISTERED BIT(9) #define SC_OP_WAIT_FOR_BEACON BIT(12) #define SC_OP_LED_ON BIT(13) #define SC_OP_SCANNING BIT(14) @@ -591,7 +583,6 @@ struct ath_softc { int beacon_interval; - struct ath_rfkill rf_kill; struct ath_ani ani; struct ath9k_node_stats nodestats; #ifdef CONFIG_ATH9K_DEBUG diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 1579c9407ed5..34935a8ee59d 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -2186,6 +2186,18 @@ static void ath9k_hw_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask); } +static void ath9k_enable_rfkill(struct ath_hw *ah) +{ + REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, + AR_GPIO_INPUT_EN_VAL_RFSILENT_BB); + + REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2, + AR_GPIO_INPUT_MUX2_RFSILENT); + + ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio); + REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB); +} + int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, bool bChannelChange) { @@ -2313,10 +2325,9 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, ath9k_hw_init_interrupt_masks(ah, ah->opmode); ath9k_hw_init_qos(ah); -#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) ath9k_enable_rfkill(ah); -#endif + ath9k_hw_init_user_settings(ah); REG_WRITE(ah, AR_STA_ID1, @@ -3613,20 +3624,6 @@ void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val) AR_GPIO_BIT(gpio)); } -#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) -void ath9k_enable_rfkill(struct ath_hw *ah) -{ - REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, - AR_GPIO_INPUT_EN_VAL_RFSILENT_BB); - - REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2, - AR_GPIO_INPUT_MUX2_RFSILENT); - - ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio); - REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB); -} -#endif - u32 ath9k_hw_getdefantenna(struct ath_hw *ah) { return REG_READ(ah, AR_DEF_ANTENNA) & 0x7; diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index dd8508ef6e05..9d0b31ad4603 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -565,9 +565,6 @@ u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio); void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio, u32 ah_signal_type); void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val); -#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) -void ath9k_enable_rfkill(struct ath_hw *ah); -#endif u32 ath9k_hw_getdefantenna(struct ath_hw *ah); void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna); bool ath9k_hw_setantennaswitch(struct ath_hw *ah, diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 6516a426f6ce..91c00486b2ac 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1197,8 +1197,6 @@ void ath_radio_disable(struct ath_softc *sc) ath9k_ps_restore(sc); } -#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) - /*******************/ /* Rfkill */ /*******************/ @@ -1211,81 +1209,27 @@ static bool ath_is_rfkill_set(struct ath_softc *sc) ah->rfkill_polarity; } -/* s/w rfkill handlers */ -static int ath_rfkill_set_block(void *data, bool blocked) -{ - struct ath_softc *sc = data; - - if (blocked) - ath_radio_disable(sc); - else - ath_radio_enable(sc); - - return 0; -} - -static void ath_rfkill_poll_state(struct rfkill *rfkill, void *data) +static void ath9k_rfkill_poll_state(struct ieee80211_hw *hw) { - struct ath_softc *sc = data; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; bool blocked = !!ath_is_rfkill_set(sc); - if (rfkill_set_hw_state(rfkill, blocked)) + wiphy_rfkill_set_hw_state(hw->wiphy, blocked); + + if (blocked) ath_radio_disable(sc); else ath_radio_enable(sc); } -/* Init s/w rfkill */ -static int ath_init_sw_rfkill(struct ath_softc *sc) +static void ath_start_rfkill_poll(struct ath_softc *sc) { - sc->rf_kill.ops.set_block = ath_rfkill_set_block; - if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) - sc->rf_kill.ops.poll = ath_rfkill_poll_state; - - snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name), - "ath9k-%s::rfkill", wiphy_name(sc->hw->wiphy)); - - sc->rf_kill.rfkill = rfkill_alloc(sc->rf_kill.rfkill_name, - wiphy_dev(sc->hw->wiphy), - RFKILL_TYPE_WLAN, - &sc->rf_kill.ops, sc); - if (!sc->rf_kill.rfkill) { - DPRINTF(sc, ATH_DBG_FATAL, "Failed to allocate rfkill\n"); - return -ENOMEM; - } - - return 0; -} - -/* Deinitialize rfkill */ -static void ath_deinit_rfkill(struct ath_softc *sc) -{ - if (sc->sc_flags & SC_OP_RFKILL_REGISTERED) { - rfkill_unregister(sc->rf_kill.rfkill); - rfkill_destroy(sc->rf_kill.rfkill); - sc->sc_flags &= ~SC_OP_RFKILL_REGISTERED; - } -} - -static int ath_start_rfkill_poll(struct ath_softc *sc) -{ - if (!(sc->sc_flags & SC_OP_RFKILL_REGISTERED)) { - if (rfkill_register(sc->rf_kill.rfkill)) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to register rfkill\n"); - rfkill_destroy(sc->rf_kill.rfkill); - - /* Deinitialize the device */ - ath_cleanup(sc); - return -EIO; - } else { - sc->sc_flags |= SC_OP_RFKILL_REGISTERED; - } - } + struct ath_hw *ah = sc->sc_ah; - return 0; + if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) + wiphy_rfkill_start_polling(sc->hw->wiphy); } -#endif /* CONFIG_RFKILL */ void ath_cleanup(struct ath_softc *sc) { @@ -1305,9 +1249,6 @@ void ath_detach(struct ath_softc *sc) DPRINTF(sc, ATH_DBG_CONFIG, "Detach ATH hw\n"); -#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) - ath_deinit_rfkill(sc); -#endif ath_deinit_leds(sc); cancel_work_sync(&sc->chan_work); cancel_delayed_work_sync(&sc->wiphy_work); @@ -1645,13 +1586,6 @@ int ath_attach(u16 devid, struct ath_softc *sc) if (error != 0) goto error_attach; -#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) - /* Initialize s/w rfkill */ - error = ath_init_sw_rfkill(sc); - if (error) - goto error_attach; -#endif - INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work); INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work); sc->wiphy_scheduler_int = msecs_to_jiffies(500); @@ -1667,6 +1601,7 @@ int ath_attach(u16 devid, struct ath_softc *sc) /* Initialize LED control */ ath_init_leds(sc); + ath_start_rfkill_poll(sc); return 0; @@ -2035,10 +1970,6 @@ static int ath9k_start(struct ieee80211_hw *hw) ieee80211_wake_queues(hw); -#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) - r = ath_start_rfkill_poll(sc); -#endif - mutex_unlock: mutex_unlock(&sc->mutex); @@ -2176,7 +2107,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) } else sc->rx.rxlink = NULL; - rfkill_pause_polling(sc->rf_kill.rfkill); + wiphy_rfkill_stop_polling(sc->hw->wiphy); /* disable HAL and put h/w to sleep */ ath9k_hw_disable(sc->sc_ah); @@ -2782,6 +2713,7 @@ struct ieee80211_ops ath9k_ops = { .ampdu_action = ath9k_ampdu_action, .sw_scan_start = ath9k_sw_scan_start, .sw_scan_complete = ath9k_sw_scan_complete, + .rfkill_poll = ath9k_rfkill_poll_state, }; static struct { -- cgit v1.2.1 From 3989279ccc838c7357c75af6090f56f5cb555158 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Mon, 15 Jun 2009 17:49:09 +0200 Subject: ath9k: restore power mode on error path The ath9k_ps_{wakeup,restore} calls must be in balance. Changes-licensed-under: ISC Signed-off-by: Gabor Juhos Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 91c00486b2ac..9f49a3251d4d 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -296,7 +296,7 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, "reset status %d\n", channel->center_freq, r); spin_unlock_bh(&sc->sc_resetlock); - return r; + goto ps_restore; } spin_unlock_bh(&sc->sc_resetlock); @@ -305,14 +305,17 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, if (ath_startrecv(sc) != 0) { DPRINTF(sc, ATH_DBG_FATAL, "Unable to restart recv logic\n"); - return -EIO; + r = -EIO; + goto ps_restore; } ath_cache_conf_rate(sc, &hw->conf); ath_update_txpow(sc); ath9k_hw_set_interrupts(ah, sc->imask); + + ps_restore: ath9k_ps_restore(sc); - return 0; + return r; } /* -- cgit v1.2.1 From 7fe96a16486fb617a26b39a4895c7522c50fc555 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Mon, 15 Jun 2009 17:49:10 +0200 Subject: ath9k: prevent sleeping while we are waiting for CAB We have to remain awake if the SC_OP_WAIT_FOR_CAB flag is set. Changes-licensed-under: ISC Signed-off-by: Gabor Juhos Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index a6e65ff4bb2d..5efc9345ca0d 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -668,6 +668,7 @@ static inline void ath9k_ps_restore(struct ath_softc *sc) if (atomic_dec_and_test(&sc->ps_usecount)) if ((sc->hw->conf.flags & IEEE80211_CONF_PS) && !(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON | + SC_OP_WAIT_FOR_CAB | SC_OP_WAIT_FOR_PSPOLL_DATA | SC_OP_WAIT_FOR_TX_ACK))) ath9k_hw_setpower(sc->sc_ah, -- cgit v1.2.1 From f0e9a8606ce60880249fd570fbebf4472c3d37c0 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Mon, 15 Jun 2009 17:49:11 +0200 Subject: ath9k: process rx packet if we are waiting for CAB If we are in PS mode, we have to process the received frame if the SC_OP_WAIT_FOR_CAB bit is set. Changes-licensed-under: ISC Signed-off-by: Gabor Juhos Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/recv.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 5014a19b0f75..f99f3a76df3f 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -817,6 +817,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush) } if (unlikely(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON | + SC_OP_WAIT_FOR_CAB | SC_OP_WAIT_FOR_PSPOLL_DATA))) ath_rx_ps(sc, skb); -- cgit v1.2.1