From 32c1087460626f9cfa2b397eafd247bf039bacac Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Mon, 19 Sep 2011 19:15:07 +0300 Subject: [PATCH] ath6kl: Export beacon interval and DTIM period through STA info Now that we allow the first Beacon frame after each connection to be processed at the host, we can figure out the DTIM period and expose it with Beacon interval through STA info BSS parameters to user space. Signed-off-by: Jouni Malinen Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath6kl/cfg80211.c | 16 ++++++++++++++++ drivers/net/wireless/ath/ath6kl/core.h | 3 +++ drivers/net/wireless/ath/ath6kl/wmi.c | 11 +++++++++++ 3 files changed, 30 insertions(+) diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c index 0bdd837d6121..c3540bbfcac6 100644 --- a/drivers/net/wireless/ath/ath6kl/cfg80211.c +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c @@ -483,6 +483,13 @@ void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel, assoc_req_len -= assoc_req_ie_offset; assoc_resp_len -= assoc_resp_ie_offset; + /* + * Store Beacon interval here; DTIM period will be available only once + * a Beacon frame from the AP is seen. + */ + ar->assoc_bss_beacon_int = beacon_intvl; + clear_bit(DTIM_PERIOD_AVAIL, &ar->flag); + if (nw_type & ADHOC_NETWORK) { if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, @@ -1366,6 +1373,15 @@ static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, sinfo->filled |= STATION_INFO_TX_BITRATE; + if (test_bit(CONNECTED, &ar->flag) && + test_bit(DTIM_PERIOD_AVAIL, &ar->flag) && + ar->nw_type == INFRA_NETWORK) { + sinfo->filled |= STATION_INFO_BSS_PARAM; + sinfo->bss_param.flags = 0; + sinfo->bss_param.dtim_period = ar->assoc_bss_dtim_period; + sinfo->bss_param.beacon_interval = ar->assoc_bss_beacon_int; + } + return 0; } diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h index c14bb75d3614..82be42f5edc8 100644 --- a/drivers/net/wireless/ath/ath6kl/core.h +++ b/drivers/net/wireless/ath/ath6kl/core.h @@ -395,6 +395,7 @@ struct ath6kl_req_key { #define WLAN_ENABLED 12 #define TESTMODE 13 #define CLEAR_BSSFILTER_ON_BEACON 14 +#define DTIM_PERIOD_AVAIL 15 struct ath6kl { struct device *dev; @@ -511,6 +512,8 @@ struct ath6kl { u16 next_chan; bool p2p; + u16 assoc_bss_beacon_int; + u8 assoc_bss_dtim_period; #ifdef CONFIG_ATH6KL_DEBUG struct { diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c index f7dcb56ab354..b90d116c018c 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.c +++ b/drivers/net/wireless/ath/ath6kl/wmi.c @@ -930,6 +930,17 @@ static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len) if (len < 8 + 2 + 2) return -EINVAL; + if (bih->frame_type == BEACON_FTYPE && test_bit(CONNECTED, &ar->flag) && + memcmp(bih->bssid, ar->bssid, ETH_ALEN) == 0) { + const u8 *tim; + tim = cfg80211_find_ie(WLAN_EID_TIM, buf + 8 + 2 + 2, + len - 8 - 2 - 2); + if (tim && tim[1] >= 2) { + ar->assoc_bss_dtim_period = tim[3]; + set_bit(DTIM_PERIOD_AVAIL, &ar->flag); + } + } + /* * In theory, use of cfg80211_inform_bss() would be more natural here * since we do not have the full frame. However, at least for now, -- 2.20.1