Return-path: Received: from wolverine02.qualcomm.com ([199.106.114.251]:36999 "EHLO wolverine02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754069Ab2FLUrH (ORCPT ); Tue, 12 Jun 2012 16:47:07 -0400 From: Thomas Pedersen To: CC: , , Thomas Pedersen Subject: [PATCH] ath6kl: support rssi threshold for sched scan Date: Tue, 12 Jun 2012 13:46:19 -0700 Message-ID: <1339533979-32084-1-git-send-email-c_tpeder@qca.qualcomm.com> (sfid-20120612_224757_316312_0C1E36AA) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-wireless-owner@vger.kernel.org List-ID: The ath6kl firmware can filter scan results based on rssi. This is useful to limit hosts wakeups on scheduled scans. Signed-off-by: Thomas Pedersen --- drivers/net/wireless/ath/ath6kl/cfg80211.c | 10 ++++++++++ drivers/net/wireless/ath/ath6kl/core.h | 3 +++ drivers/net/wireless/ath/ath6kl/wmi.c | 18 ++++++++++++++++++ drivers/net/wireless/ath/ath6kl/wmi.h | 10 ++++++++++ 4 files changed, 41 insertions(+), 0 deletions(-) diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c index 6f20998..4f20693 100644 --- a/drivers/net/wireless/ath/ath6kl/cfg80211.c +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c @@ -3267,6 +3267,16 @@ static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy, return ret; } + if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, + ar->fw_capabilities)) { + ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx, + request->rssi_thold); + if (ret) { + ath6kl_err("failed to set RSSI threshold for scan"); + return ret; + } + } + /* fw uses seconds, also make sure that it's >0 */ interval = max_t(u16, 1, request->interval / 1000); diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h index 17a44fa..69b194c 100644 --- a/drivers/net/wireless/ath/ath6kl/core.h +++ b/drivers/net/wireless/ath/ath6kl/core.h @@ -115,6 +115,9 @@ enum ath6kl_fw_capability { */ ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, + /* Firmware supports filtering BSS results by RSSI */ + ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, + /* this needs to be last */ ATH6KL_FW_CAPABILITY_MAX, }; diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c index 43bce9c..6966a29 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.c +++ b/drivers/net/wireless/ath/ath6kl/wmi.c @@ -1515,6 +1515,24 @@ static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len, return 0; } +int ath6kl_wmi_set_rssi_filter_cmd(struct wmi *wmi, u8 if_idx, s8 rssi) +{ + struct sk_buff *skb; + struct wmi_set_rssi_filter_cmd *cmd; + int ret; + + skb = ath6kl_wmi_get_new_buf(sizeof(*cmd)); + if (!skb) + return -ENOMEM; + + cmd = (struct wmi_set_rssi_filter_cmd *) skb->data; + cmd->rssi = rssi; + + ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_RSSI_FILTER_CMDID, + NO_SYNC_WMIFLAG); + return ret; +} + static int ath6kl_wmi_send_snr_threshold_params(struct wmi *wmi, struct wmi_snr_threshold_params_cmd *snr_cmd) { diff --git a/drivers/net/wireless/ath/ath6kl/wmi.h b/drivers/net/wireless/ath/ath6kl/wmi.h index 7c94fe3..128f8fe 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.h +++ b/drivers/net/wireless/ath/ath6kl/wmi.h @@ -628,6 +628,10 @@ enum wmi_cmd_id { WMI_SET_MCASTRATE, WMI_STA_BMISS_ENHANCE_CMDID, + + WMI_SET_REGDOMAIN_CMDID, + + WMI_SET_RSSI_FILTER_CMDID, }; enum wmi_mgmt_frame_type { @@ -1276,6 +1280,11 @@ struct wmi_snr_threshold_params_cmd { u8 reserved[3]; } __packed; +/* Don't report BSSs with signal (RSSI) below this threshold */ +struct wmi_set_rssi_filter_cmd { + s8 rssi; +} __packed; + enum wmi_preamble_policy { WMI_IGNORE_BARKER_IN_ERP = 0, WMI_FOLLOW_BARKER_IN_ERP, @@ -2588,6 +2597,7 @@ int ath6kl_wmi_add_wow_pattern_cmd(struct wmi *wmi, u8 if_idx, const u8 *mask); int ath6kl_wmi_del_wow_pattern_cmd(struct wmi *wmi, u8 if_idx, u16 list_id, u16 filter_id); +int ath6kl_wmi_set_rssi_filter_cmd(struct wmi *wmi, u8 if_idx, s8 rssi); int ath6kl_wmi_set_roam_lrssi_cmd(struct wmi *wmi, u8 lrssi); int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid); int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode); -- 1.7.4.1