From patchwork Thu May 28 19:54:47 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Avinash Patil X-Patchwork-Id: 6499171 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 92E69C0020 for ; Thu, 28 May 2015 14:27:05 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 98D0E2064C for ; Thu, 28 May 2015 14:27:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A16F120647 for ; Thu, 28 May 2015 14:27:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754068AbbE1O0u (ORCPT ); Thu, 28 May 2015 10:26:50 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:35642 "EHLO mx0a-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754048AbbE1O0r (ORCPT ); Thu, 28 May 2015 10:26:47 -0400 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.14.5/8.14.5) with SMTP id t4SEOCmD006886 for ; Thu, 28 May 2015 07:26:46 -0700 Received: from sc-owa04.marvell.com ([199.233.58.150]) by mx0a-0016f401.pphosted.com with ESMTP id 1umgmaqyem-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT) for ; Thu, 28 May 2015 07:26:46 -0700 Received: from maili.marvell.com (10.93.76.83) by SC-OWA04.marvell.com (10.93.76.33) with Microsoft SMTP Server id 8.3.327.1; Thu, 28 May 2015 07:26:45 -0700 Received: from pe-lt950 (unknown [10.31.130.73]) by maili.marvell.com (Postfix) with ESMTP id 45E9B3F703F; Thu, 28 May 2015 07:26:44 -0700 (PDT) Received: from pe-lt950 (localhost [127.0.0.1]) by pe-lt950 (8.14.7/8.14.7) with ESMTP id t4SJuZYN003321; Fri, 29 May 2015 01:26:35 +0530 Received: (from root@localhost) by pe-lt950 (8.14.7/8.14.7/Submit) id t4SJuZ7q003320; Fri, 29 May 2015 01:26:35 +0530 From: Avinash Patil To: CC: , , , Avinash Patil Subject: [PATCHv2 06/17] mwifiex: disable CAC upon radar detection event Date: Fri, 29 May 2015 01:24:47 +0530 Message-ID: <1432842898-3219-7-git-send-email-patila@marvell.com> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1432842898-3219-1-git-send-email-patila@marvell.com> References: <1432842898-3219-1-git-send-email-patila@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.14.151, 1.0.33, 0.0.0000 definitions=2015-05-28_04:2015-05-28, 2015-05-28, 1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1505280182 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds support to disable ongoing CAC in FW upon detecting radar during CAC period. Signed-off-by: Avinash Patil --- drivers/net/wireless/mwifiex/11h.c | 30 ++++++++++++++++++++++++++---- drivers/net/wireless/mwifiex/main.h | 2 ++ 2 files changed, 28 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/mwifiex/11h.c b/drivers/net/wireless/mwifiex/11h.c index 65cd461..bb2ffd9 100644 --- a/drivers/net/wireless/mwifiex/11h.c +++ b/drivers/net/wireless/mwifiex/11h.c @@ -161,19 +161,38 @@ int mwifiex_cmd_issue_chan_report_request(struct mwifiex_private *priv, cr_req->chan_desc.chan_width = radar_params->chandef->width; cr_req->msec_dwell_time = cpu_to_le32(radar_params->cac_time_ms); - mwifiex_dbg(priv->adapter, MSG, - "11h: issuing DFS Radar check for channel=%d\n", - radar_params->chandef->chan->hw_value); + if (radar_params->cac_time_ms) + mwifiex_dbg(priv->adapter, MSG, + "11h: issuing DFS Radar check for channel=%d\n", + radar_params->chandef->chan->hw_value); + else + mwifiex_dbg(priv->adapter, MSG, "cancelling CAC\n"); return 0; } +int mwifiex_stop_radar_detection(struct mwifiex_private *priv, + struct cfg80211_chan_def *chandef) +{ + struct mwifiex_radar_params radar_params; + + memset(&radar_params, 0, sizeof(struct mwifiex_radar_params)); + radar_params.chandef = chandef; + radar_params.cac_time_ms = 0; + + return mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST, + HostCmd_ACT_GEN_SET, 0, &radar_params, true); +} + /* This function is to abort ongoing CAC upon stopping AP operations * or during unload. */ void mwifiex_abort_cac(struct mwifiex_private *priv) { if (priv->wdev.cac_started) { + if (mwifiex_stop_radar_detection(priv, &priv->dfs_chandef)) + mwifiex_dbg(priv->adapter, ERROR, + "failed to stop CAC in FW\n"); mwifiex_dbg(priv->adapter, MSG, "Aborting delayed work for CAC.\n"); cancel_delayed_work_sync(&priv->dfs_cac_work); @@ -245,6 +264,9 @@ int mwifiex_11h_handle_radar_detected(struct mwifiex_private *priv, if (le32_to_cpu(rdr_event->passed)) { mwifiex_dbg(priv->adapter, MSG, "radar detected; indicating kernel\n"); + if (mwifiex_stop_radar_detection(priv, &priv->dfs_chandef)) + mwifiex_dbg(priv->adapter, ERROR, + "Failed to stop CAC in FW\n"); cfg80211_radar_event(priv->adapter->wiphy, &priv->dfs_chandef, GFP_KERNEL); mwifiex_dbg(priv->adapter, MSG, "regdomain: %d\n", @@ -252,7 +274,7 @@ int mwifiex_11h_handle_radar_detected(struct mwifiex_private *priv, mwifiex_dbg(priv->adapter, MSG, "radar detection type: %d\n", rdr_event->det_type); } else { - mwifiex_dbg(priv->adapter, ERROR, + mwifiex_dbg(priv->adapter, MSG, "false radar detection event!\n"); } diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h index 5a6c1c7..3ac18c6 100644 --- a/drivers/net/wireless/mwifiex/main.h +++ b/drivers/net/wireless/mwifiex/main.h @@ -1473,6 +1473,8 @@ mwifiex_clone_skb_for_tx_status(struct mwifiex_private *priv, void mwifiex_dfs_cac_work_queue(struct work_struct *work); void mwifiex_dfs_chan_sw_work_queue(struct work_struct *work); void mwifiex_abort_cac(struct mwifiex_private *priv); +int mwifiex_stop_radar_detection(struct mwifiex_private *priv, + struct cfg80211_chan_def *chandef); int mwifiex_11h_handle_radar_detected(struct mwifiex_private *priv, struct sk_buff *skb);