Return-path: Received: from mail-ey0-f174.google.com ([209.85.215.174]:57549 "EHLO mail-ey0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754562Ab0L2Xci (ORCPT ); Wed, 29 Dec 2010 18:32:38 -0500 Received: by mail-ey0-f174.google.com with SMTP id 27so4753430eye.19 for ; Wed, 29 Dec 2010 15:32:37 -0800 (PST) From: Arik Nemtsov To: Cc: Luciano Coelho , Arik Nemtsov Subject: [PATCH v4 09/18] wl1271: Configure AP on BSS info change Date: Thu, 30 Dec 2010 01:32:04 +0200 Message-Id: <1293665533-7599-10-git-send-email-arik@wizery.com> In-Reply-To: <1293665533-7599-1-git-send-email-arik@wizery.com> References: <1293665533-7599-1-git-send-email-arik@wizery.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: Configure AP-specific beacon and probe response templates. Start the AP when beaconing is enabled. The wl1271_bss_info_changed() function has been split into AP/STA specific handlers. Signed-off-by: Arik Nemtsov --- drivers/net/wireless/wl12xx/main.c | 340 +++++++++++++++++++++++----------- drivers/net/wireless/wl12xx/wl12xx.h | 3 + 2 files changed, 234 insertions(+), 109 deletions(-) diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index d1075a5..0f16307 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -1843,7 +1843,7 @@ out: return ret; } -static void wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *skb, +static int wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *skb, int offset) { u8 *ptr = skb->data + offset; @@ -1853,89 +1853,206 @@ static void wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *skb, if (ptr[0] == WLAN_EID_SSID) { wl->ssid_len = ptr[1]; memcpy(wl->ssid, ptr+2, wl->ssid_len); - return; + return 0; } ptr += (ptr[1] + 2); } + wl1271_error("No SSID in IEs!\n"); + return -ENOENT; } -static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, +static int wl1271_bss_erp_info_changed(struct wl1271 *wl, struct ieee80211_bss_conf *bss_conf, u32 changed) { - enum wl1271_cmd_ps_mode mode; - struct wl1271 *wl = hw->priv; - struct ieee80211_sta *sta = ieee80211_find_sta(vif, bss_conf->bssid); - bool do_join = false; - bool set_assoc = false; - int ret; + int ret = 0; - wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed"); + if (changed & BSS_CHANGED_ERP_SLOT) { + if (bss_conf->use_short_slot) + ret = wl1271_acx_slot(wl, SLOT_TIME_SHORT); + else + ret = wl1271_acx_slot(wl, SLOT_TIME_LONG); + if (ret < 0) { + wl1271_warning("Set slot time failed %d", ret); + goto out; + } + } - mutex_lock(&wl->mutex); + if (changed & BSS_CHANGED_ERP_PREAMBLE) { + if (bss_conf->use_short_preamble) + wl1271_acx_set_preamble(wl, ACX_PREAMBLE_SHORT); + else + wl1271_acx_set_preamble(wl, ACX_PREAMBLE_LONG); + } - if (unlikely(wl->state == WL1271_STATE_OFF)) - goto out; + if (changed & BSS_CHANGED_ERP_CTS_PROT) { + if (bss_conf->use_cts_prot) + ret = wl1271_acx_cts_protect(wl, CTSPROTECT_ENABLE); + else + ret = wl1271_acx_cts_protect(wl, CTSPROTECT_DISABLE); + if (ret < 0) { + wl1271_warning("Set ctsprotect failed %d", ret); + goto out; + } + } - ret = wl1271_ps_elp_wakeup(wl, false); - if (ret < 0) - goto out; +out: + return ret; +} - if ((changed & BSS_CHANGED_BEACON_INT) && - (wl->bss_type == BSS_TYPE_IBSS)) { - wl1271_debug(DEBUG_ADHOC, "ad-hoc beacon interval updated: %d", +static int wl1271_bss_beacon_info_changed(struct wl1271 *wl, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, + u32 changed) +{ + bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS); + int ret = 0; + + if ((changed & BSS_CHANGED_BEACON_INT)) { + wl1271_debug(DEBUG_MASTER, "beacon interval updated: %d", bss_conf->beacon_int); wl->beacon_int = bss_conf->beacon_int; - do_join = true; } - if ((changed & BSS_CHANGED_BEACON) && - (wl->bss_type == BSS_TYPE_IBSS)) { - struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); + if ((changed & BSS_CHANGED_BEACON)) { + struct ieee80211_hdr *hdr; + int ieoffset = offsetof(struct ieee80211_mgmt, + u.beacon.variable); + struct sk_buff *beacon = ieee80211_beacon_get(wl->hw, vif); + u16 tmpl_id; + + if (!beacon) + goto out; + + wl1271_debug(DEBUG_MASTER, "beacon updated"); + + ret = wl1271_ssid_set(wl, beacon, ieoffset); + if (ret < 0) { + dev_kfree_skb(beacon); + goto out; + } + tmpl_id = is_ap ? CMD_TEMPL_AP_BEACON : + CMD_TEMPL_BEACON; + ret = wl1271_cmd_template_set(wl, tmpl_id, + beacon->data, + beacon->len, 0, + wl1271_tx_min_rate_get(wl)); + if (ret < 0) { + dev_kfree_skb(beacon); + goto out; + } + + hdr = (struct ieee80211_hdr *) beacon->data; + hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_PROBE_RESP); + + tmpl_id = is_ap ? CMD_TEMPL_AP_PROBE_RESPONSE : + CMD_TEMPL_PROBE_RESPONSE; + ret = wl1271_cmd_template_set(wl, + tmpl_id, + beacon->data, + beacon->len, 0, + wl1271_tx_min_rate_get(wl)); + dev_kfree_skb(beacon); + if (ret < 0) + goto out; + } + +out: + return ret; +} + +/* AP mode changes */ +static void wl1271_bss_info_changed_ap(struct wl1271 *wl, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, + u32 changed) +{ + int ret = 0; - wl1271_debug(DEBUG_ADHOC, "ad-hoc beacon updated"); + if ((changed & BSS_CHANGED_BASIC_RATES)) { + u32 rates = bss_conf->basic_rates; + struct conf_tx_rate_class mgmt_rc; - if (beacon) { - struct ieee80211_hdr *hdr; - int ieoffset = offsetof(struct ieee80211_mgmt, - u.beacon.variable); + wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl, rates); + wl->basic_rate = wl1271_tx_min_rate_get(wl); + wl1271_debug(DEBUG_AP, "basic rates: 0x%x", + wl->basic_rate_set); + + /* update the AP management rate policy with the new rates */ + mgmt_rc.enabled_rates = wl->basic_rate_set; + mgmt_rc.long_retry_limit = 10; + mgmt_rc.short_retry_limit = 10; + mgmt_rc.aflags = 0; + ret = wl1271_acx_ap_rate_policy(wl, &mgmt_rc, + ACX_TX_AP_MODE_MGMT_RATE); + if (ret < 0) { + wl1271_error("AP mgmt policy change failed %d", ret); + goto out; + } + } - wl1271_ssid_set(wl, beacon, ieoffset); + ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf, changed); + if (ret < 0) + goto out; - ret = wl1271_cmd_template_set(wl, CMD_TEMPL_BEACON, - beacon->data, - beacon->len, 0, - wl1271_tx_min_rate_get(wl)); + if ((changed & BSS_CHANGED_BEACON_ENABLED)) { + if (bss_conf->enable_beacon) { + if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) { + ret = wl1271_cmd_start_bss(wl); + if (ret < 0) + goto out; - if (ret < 0) { - dev_kfree_skb(beacon); - goto out_sleep; + set_bit(WL1271_FLAG_AP_STARTED, &wl->flags); + wl1271_debug(DEBUG_AP, "started AP"); } + } else { + if (test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) { + ret = wl1271_cmd_stop_bss(wl); + if (ret < 0) + goto out; - hdr = (struct ieee80211_hdr *) beacon->data; - hdr->frame_control = cpu_to_le16( - IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_PROBE_RESP); + clear_bit(WL1271_FLAG_AP_STARTED, &wl->flags); + wl1271_debug(DEBUG_AP, "stopped AP"); + } + } + } - ret = wl1271_cmd_template_set(wl, - CMD_TEMPL_PROBE_RESPONSE, - beacon->data, - beacon->len, 0, - wl1271_tx_min_rate_get(wl)); - dev_kfree_skb(beacon); - if (ret < 0) - goto out_sleep; + ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed); + if (ret < 0) + goto out; +out: + return; +} - /* Need to update the SSID (for filtering etc) */ - do_join = true; - } +/* STA/IBSS mode changes */ +static void wl1271_bss_info_changed_sta(struct wl1271 *wl, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, + u32 changed) +{ + bool do_join = false, set_assoc = false; + bool is_ibss = (wl->bss_type == BSS_TYPE_IBSS); + int ret; + struct ieee80211_sta *sta = ieee80211_find_sta(vif, bss_conf->bssid); + + if (is_ibss) { + ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf, + changed); + if (ret < 0) + goto out; } - if ((changed & BSS_CHANGED_BEACON_ENABLED) && - (wl->bss_type == BSS_TYPE_IBSS)) { + if ((changed & BSS_CHANGED_BEACON_INT) && is_ibss) + do_join = true; + + /* Need to update the SSID (for filtering etc) */ + if ((changed & BSS_CHANGED_BEACON) && is_ibss) + do_join = true; + + if ((changed & BSS_CHANGED_BEACON_ENABLED) && is_ibss) { wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s", bss_conf->enable_beacon ? "enabled" : "disabled"); @@ -1946,7 +2063,7 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, do_join = true; } - if (changed & BSS_CHANGED_CQM) { + if ((changed & BSS_CHANGED_CQM)) { bool enable = false; if (bss_conf->cqm_rssi_thold) enable = true; @@ -1964,24 +2081,24 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, * and enable the BSSID filter */ memcmp(wl->bssid, bss_conf->bssid, ETH_ALEN)) { - memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN); + memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN); - ret = wl1271_cmd_build_null_data(wl); - if (ret < 0) - goto out_sleep; + ret = wl1271_cmd_build_null_data(wl); + if (ret < 0) + goto out; - ret = wl1271_build_qos_null_data(wl); - if (ret < 0) - goto out_sleep; + ret = wl1271_build_qos_null_data(wl); + if (ret < 0) + goto out; - /* filter out all packets not from this BSSID */ - wl1271_configure_filters(wl, 0); + /* filter out all packets not from this BSSID */ + wl1271_configure_filters(wl, 0); - /* Need to update the BSSID (for filtering etc) */ - do_join = true; + /* Need to update the BSSID (for filtering etc) */ + do_join = true; } - if (changed & BSS_CHANGED_ASSOC) { + if ((changed & BSS_CHANGED_ASSOC)) { if (bss_conf->assoc) { u32 rates; int ieoffset; @@ -2000,7 +2117,7 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, wl->basic_rate = wl1271_tx_min_rate_get(wl); ret = wl1271_acx_sta_rate_policies(wl); if (ret < 0) - goto out_sleep; + goto out; /* * with wl1271, we don't need to update the @@ -2010,7 +2127,7 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, */ ret = wl1271_cmd_build_ps_poll(wl, wl->aid); if (ret < 0) - goto out_sleep; + goto out; /* * Get a template for hardware connection maintenance @@ -2024,17 +2141,19 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, /* enable the connection monitoring feature */ ret = wl1271_acx_conn_monit_params(wl, true); if (ret < 0) - goto out_sleep; + goto out; /* If we want to go in PSM but we're not there yet */ if (test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags) && !test_bit(WL1271_FLAG_PSM, &wl->flags)) { + enum wl1271_cmd_ps_mode mode; + mode = STATION_POWER_SAVE_MODE; ret = wl1271_ps_set_mode(wl, mode, wl->basic_rate, true); if (ret < 0) - goto out_sleep; + goto out; } } else { /* use defaults when not associated */ @@ -2054,7 +2173,7 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, wl->basic_rate = wl1271_tx_min_rate_get(wl); ret = wl1271_acx_sta_rate_policies(wl); if (ret < 0) - goto out_sleep; + goto out; /* disable connection monitor features */ ret = wl1271_acx_conn_monit_params(wl, false); @@ -2062,43 +2181,17 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, /* Disable the keep-alive feature */ ret = wl1271_acx_keep_alive_mode(wl, false); if (ret < 0) - goto out_sleep; + goto out; /* restore the bssid filter and go to dummy bssid */ wl1271_unjoin(wl); wl1271_dummy_join(wl); } - - } - - if (changed & BSS_CHANGED_ERP_SLOT) { - if (bss_conf->use_short_slot) - ret = wl1271_acx_slot(wl, SLOT_TIME_SHORT); - else - ret = wl1271_acx_slot(wl, SLOT_TIME_LONG); - if (ret < 0) { - wl1271_warning("Set slot time failed %d", ret); - goto out_sleep; - } - } - - if (changed & BSS_CHANGED_ERP_PREAMBLE) { - if (bss_conf->use_short_preamble) - wl1271_acx_set_preamble(wl, ACX_PREAMBLE_SHORT); - else - wl1271_acx_set_preamble(wl, ACX_PREAMBLE_LONG); } - if (changed & BSS_CHANGED_ERP_CTS_PROT) { - if (bss_conf->use_cts_prot) - ret = wl1271_acx_cts_protect(wl, CTSPROTECT_ENABLE); - else - ret = wl1271_acx_cts_protect(wl, CTSPROTECT_DISABLE); - if (ret < 0) { - wl1271_warning("Set ctsprotect failed %d", ret); - goto out_sleep; - } - } + ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed); + if (ret < 0) + goto out; /* * Takes care of: New association with HT enable, @@ -2110,13 +2203,13 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, true); if (ret < 0) { wl1271_warning("Set ht cap true failed %d", ret); - goto out_sleep; + goto out; } ret = wl1271_acx_set_ht_information(wl, bss_conf->ht_operation_mode); if (ret < 0) { wl1271_warning("Set ht information failed %d", ret); - goto out_sleep; + goto out; } } /* @@ -2127,7 +2220,7 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, false); if (ret < 0) { wl1271_warning("Set ht cap false failed %d", ret); - goto out_sleep; + goto out; } } @@ -2146,7 +2239,7 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, ret = wl1271_cmd_build_arp_rsp(wl, addr); if (ret < 0) { wl1271_warning("build arp rsp failed: %d", ret); - goto out_sleep; + goto out; } ret = wl1271_acx_arp_ip_filter(wl, @@ -2157,18 +2250,47 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, ret = wl1271_acx_arp_ip_filter(wl, 0, addr); if (ret < 0) - goto out_sleep; + goto out; } if (do_join) { ret = wl1271_join(wl, set_assoc); if (ret < 0) { wl1271_warning("cmd join failed %d", ret); - goto out_sleep; + goto out; } } -out_sleep: +out: + return; +} + +static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, + u32 changed) +{ + struct wl1271 *wl = hw->priv; + bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS); + int ret; + + wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed 0x%x", + (int)changed); + + mutex_lock(&wl->mutex); + + if (unlikely(wl->state == WL1271_STATE_OFF)) + goto out; + + ret = wl1271_ps_elp_wakeup(wl, false); + if (ret < 0) + goto out; + + if (is_ap) + wl1271_bss_info_changed_ap(wl, vif, bss_conf, changed); + else + wl1271_bss_info_changed_sta(wl, vif, bss_conf, changed); + wl1271_ps_elp_sleep(wl); out: diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h index ebb4a4d..a378d52 100644 --- a/drivers/net/wireless/wl12xx/wl12xx.h +++ b/drivers/net/wireless/wl12xx/wl12xx.h @@ -57,6 +57,8 @@ enum { DEBUG_SDIO = BIT(14), DEBUG_FILTERS = BIT(15), DEBUG_ADHOC = BIT(16), + DEBUG_AP = BIT(17), + DEBUG_MASTER = (DEBUG_ADHOC | DEBUG_AP), DEBUG_ALL = ~0, }; @@ -284,6 +286,7 @@ struct wl1271 { #define WL1271_FLAG_PSPOLL_FAILURE (12) #define WL1271_FLAG_STA_STATE_SENT (13) #define WL1271_FLAG_FW_TX_BUSY (14) +#define WL1271_FLAG_AP_STARTED (15) unsigned long flags; struct wl1271_partition_set part; -- 1.7.1