From patchwork Mon Sep 30 06:36:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Lin X-Patchwork-Id: 13815420 X-Patchwork-Delegate: kvalo@adurom.com Received: from AM0PR83CU005.outbound.protection.outlook.com (mail-westeuropeazon11010001.outbound.protection.outlook.com [52.101.69.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1036814EC7E; Mon, 30 Sep 2024 06:37:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.69.1 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727678267; cv=fail; b=L9F4TNxkORjnqwZcIWLBw1Tp4Tl8RO8U+3/7g96S1745Kvo7+9uQbHvB/LkDwxcatDpXwXnjvl7WjAasa6PfneewPArYB+4I73MvfzD2LOBkwUfFL7IMRhDIjQI1qs94FCQoF4B4xYUXmbhD0+WrAWT/4/dh4N7xAa//VVEi1Q0= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727678267; c=relaxed/simple; bh=QcUxkzRP7Sgc/N/v9OJLSLyqKTfqjDvXC/IJONJq0+w=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=RD2bRd4YyV6v65KEfvxsLYYSqaAAVYSgJiGKEtc4MpjaO6l0LV9TJl4zC4xQpkYij+8uhTZIynxFEfTVPb5VKyCiQMnxj9xdA6EDkXvr+vkFE1mBNJRO3dTiW4R3EsoVFpwYKHv2spEpo9X47DT96HSMaI+l1BJ8crtq4cCdXVg= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com; spf=pass smtp.mailfrom=nxp.com; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b=R8pqDarU; arc=fail smtp.client-ip=52.101.69.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b="R8pqDarU" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=HNtiZJiqSoCuJwaP0FPiUhkhz/wbVxVQAmrv6Wm0dnoD4QL0OqdOYaRSfNWTkCaXqIQvxs7NHMAoY4na0M3IDqPTEZPuQQ9RxxcxlQs5sGDY70239mM4jwmy6hwdTUObAbmKdsawAAxDp30vTHxdX41hn9aiG2P9eZ18IPjbiVLzEY3OqSQIDMjbrHTJgQalWFjiI8x405DagAuNZPoWaQahpRWftLCW4lDIwto+YYkgAxKQxnvIjR8WJaT5JiHBcJs0HUAxj8Wf8qxqGXtYtkasZuJ8qtDzGBJoPoa9qNQKggM4pLDR5M9v44Wy9eP7RbIvgRZyrrQ+AxuyQ9BE4Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=FULkcCzR6T559FRIRY0guR7B4psEiUwfA4Ly2P/z0O0=; b=XV1ZUevgtcf0EOw139XnkqyZPW8cXfTB/vUzn47sTanXH2CYDoKRIPVC7UPkblhOO+7ZXaqDpJg0hx5CjBlQDpFiZkwrmymZerbTUQ3G/BCc5T2/oT4acy2WGbHKC77LK673JeWvysexyXMhXmPmLNTyEMrHG/4Wlhuv/LUJuA3fxn3MlxwGggtxVh9b/xrH09aDLDhJrirNn+pKGO5FcJsCGGcGppSRHdprySiO9etXLcG6eRqt/GQYnuqSxC17OfgC5q4AXfXX92iqRYgGhIQ1Mf1IVknt2z8JfYjf+m7Yum/PflyDrEVQkCLJSLJDCeQ1xGItbUvGRYbX5eUhqw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=FULkcCzR6T559FRIRY0guR7B4psEiUwfA4Ly2P/z0O0=; b=R8pqDarU5UJ3O6pxApDgG7YZmPMg6qlGnT2Z4bCMW8THQ2/mcJTCT2mXxb5D2FyTZx1YicyFLxL9UU6noghMtmXsIYx6VBd3EX6mzftGjajLw3od9zQGw6OxmoF7y3/O7a7OyC80AL6NfZ4L8We7DDHyBfChA2bTwh6cTAjHwnzUk2VnQSQ/OTGFl/gaHPwuUVNJwBLxwprZdtdjaESCPlx+aIX5oMuo3O6LNU9iWuUWg/6zI5xD3ueHXlTsHKM4ZpHyqALQCB84BeTM7c1uUkXLmw/jCoGf471JnuLD1ipjYDz4MRXvjXr5CmhrUCD67TzRE9M9WpL+R5NwEWc17Q== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PA4PR04MB9638.eurprd04.prod.outlook.com (2603:10a6:102:273::20) by DU2PR04MB9000.eurprd04.prod.outlook.com (2603:10a6:10:2e3::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7918.25; Mon, 30 Sep 2024 06:37:41 +0000 Received: from PA4PR04MB9638.eurprd04.prod.outlook.com ([fe80::f950:3bb6:6848:2257]) by PA4PR04MB9638.eurprd04.prod.outlook.com ([fe80::f950:3bb6:6848:2257%3]) with mapi id 15.20.8005.024; Mon, 30 Sep 2024 06:37:41 +0000 From: David Lin To: linux-wireless@vger.kernel.org Cc: linux-kernel@vger.kernel.org, briannorris@chromium.org, kvalo@kernel.org, francesco@dolcini.it, tsung-hsien.hsieh@nxp.com, s.hauer@pengutronix.de, David Lin Subject: [PATCH v3 04/22] wifi: nxpwifi: add 802.11h file Date: Mon, 30 Sep 2024 14:36:43 +0800 Message-Id: <20240930063701.2566520-5-yu-hao.lin@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240930063701.2566520-1-yu-hao.lin@nxp.com> References: <20240930063701.2566520-1-yu-hao.lin@nxp.com> X-ClientProxiedBy: AM8P190CA0001.EURP190.PROD.OUTLOOK.COM (2603:10a6:20b:219::6) To PA4PR04MB9638.eurprd04.prod.outlook.com (2603:10a6:102:273::20) Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PA4PR04MB9638:EE_|DU2PR04MB9000:EE_ X-MS-Office365-Filtering-Correlation-Id: 9af8729f-3cc3-4f19-e438-08dce11a61db X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|52116014|376014|366016|38350700014; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PA4PR04MB9638.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(52116014)(376014)(366016)(38350700014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9af8729f-3cc3-4f19-e438-08dce11a61db X-MS-Exchange-CrossTenant-AuthSource: PA4PR04MB9638.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Sep 2024 06:37:41.0074 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: +IMebKBKNfOsJnLbpcjWerdVCfsYcxkBbN5mtYtPA8raMXDPIHytNuyYY2t14WUFExv/on5DzL/mQaTsY94eHA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU2PR04MB9000 File 802.11h is used to support 802.11h features (DFS and TPC). Signed-off-by: David Lin --- drivers/net/wireless/nxp/nxpwifi/11h.c | 432 +++++++++++++++++++++++++ 1 file changed, 432 insertions(+) create mode 100644 drivers/net/wireless/nxp/nxpwifi/11h.c diff --git a/drivers/net/wireless/nxp/nxpwifi/11h.c b/drivers/net/wireless/nxp/nxpwifi/11h.c new file mode 100644 index 000000000000..f2830d136941 --- /dev/null +++ b/drivers/net/wireless/nxp/nxpwifi/11h.c @@ -0,0 +1,432 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * NXP Wireless LAN device driver: 802.11h + * + * Copyright 2011-2024 NXP + */ + +#include "main.h" +#include "cmdevt.h" +#include "fw.h" +#include "cfg80211.h" + +void nxpwifi_init_11h_params(struct nxpwifi_private *priv) +{ + priv->state_11h.is_11h_enabled = true; + priv->state_11h.is_11h_active = false; +} + +inline int nxpwifi_is_11h_active(struct nxpwifi_private *priv) +{ + return priv->state_11h.is_11h_active; +} + +/* This function appends 11h info to a buffer while joining an + * infrastructure BSS + */ +static void +nxpwifi_11h_process_infra_join(struct nxpwifi_private *priv, u8 **buffer, + struct nxpwifi_bssdescriptor *bss_desc) +{ + struct nxpwifi_ie_types_header *ie_header; + struct nxpwifi_ie_types_pwr_capability *cap; + struct nxpwifi_ie_types_local_pwr_constraint *constraint; + struct ieee80211_supported_band *sband; + u8 radio_type; + int i; + + if (!buffer || !(*buffer)) + return; + + radio_type = nxpwifi_band_to_radio_type((u8)bss_desc->bss_band); + sband = priv->wdev.wiphy->bands[radio_type]; + + cap = (struct nxpwifi_ie_types_pwr_capability *)*buffer; + cap->header.type = cpu_to_le16(WLAN_EID_PWR_CAPABILITY); + cap->header.len = cpu_to_le16(2); + cap->min_pwr = 0; + cap->max_pwr = 0; + *buffer += sizeof(*cap); + + constraint = (struct nxpwifi_ie_types_local_pwr_constraint *)*buffer; + constraint->header.type = cpu_to_le16(WLAN_EID_PWR_CONSTRAINT); + constraint->header.len = cpu_to_le16(2); + constraint->chan = bss_desc->channel; + constraint->constraint = bss_desc->local_constraint; + *buffer += sizeof(*constraint); + + ie_header = (struct nxpwifi_ie_types_header *)*buffer; + ie_header->type = cpu_to_le16(TLV_TYPE_PASSTHROUGH); + ie_header->len = cpu_to_le16(2 * sband->n_channels + 2); + *buffer += sizeof(*ie_header); + *(*buffer)++ = WLAN_EID_SUPPORTED_CHANNELS; + *(*buffer)++ = 2 * sband->n_channels; + for (i = 0; i < sband->n_channels; i++) { + u32 center_freq; + + center_freq = sband->channels[i].center_freq; + *(*buffer)++ = ieee80211_frequency_to_channel(center_freq); + *(*buffer)++ = 1; /* one channel in the subband */ + } +} + +/* Enable or disable the 11h extensions in the firmware */ +int nxpwifi_11h_activate(struct nxpwifi_private *priv, bool flag) +{ + u32 enable = flag; + + /* enable master mode radar detection on AP interface */ + if ((GET_BSS_ROLE(priv) == NXPWIFI_BSS_ROLE_UAP) && enable) + enable |= NXPWIFI_MASTER_RADAR_DET_MASK; + + return nxpwifi_send_cmd(priv, HOST_CMD_802_11_SNMP_MIB, + HOST_ACT_GEN_SET, DOT11H_I, &enable, true); +} + +/* This functions processes TLV buffer for a pending BSS Join command. + * + * Activate 11h functionality in the firmware if the spectrum management + * capability bit is found in the network we are joining. Also, necessary + * TLVs are set based on requested network's 11h capability. + */ +void nxpwifi_11h_process_join(struct nxpwifi_private *priv, u8 **buffer, + struct nxpwifi_bssdescriptor *bss_desc) +{ + if (bss_desc->sensed_11h) { + /* Activate 11h functions in firmware, turns on capability + * bit + */ + nxpwifi_11h_activate(priv, true); + priv->state_11h.is_11h_active = true; + bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_SPECTRUM_MGMT; + nxpwifi_11h_process_infra_join(priv, buffer, bss_desc); + } else { + /* Deactivate 11h functions in the firmware */ + nxpwifi_11h_activate(priv, false); + priv->state_11h.is_11h_active = false; + bss_desc->cap_info_bitmap &= ~WLAN_CAPABILITY_SPECTRUM_MGMT; + } +} + +/* This is DFS CAC work function. + * This delayed work emits CAC finished event for cfg80211 if + * CAC was started earlier. + */ +void nxpwifi_dfs_cac_work(struct work_struct *work) +{ + struct cfg80211_chan_def chandef; + struct delayed_work *delayed_work = to_delayed_work(work); + struct nxpwifi_private *priv = container_of(delayed_work, + struct nxpwifi_private, + dfs_cac_work); + + chandef = priv->dfs_chandef; + if (priv->wdev.links[0].cac_started) { + nxpwifi_dbg(priv->adapter, MSG, + "CAC timer finished; No radar detected\n"); + cfg80211_cac_event(priv->netdev, &chandef, + NL80211_RADAR_CAC_FINISHED, + GFP_KERNEL, 0); + } +} + +static u8 nxpwifi_get_channel_2_offset(int chan) +{ + u8 chan2_offset = SEC_CHAN_NONE; + + switch (chan) { + case 36: + case 44: + case 52: + case 60: + case 100: + case 108: + case 116: + case 124: + case 132: + case 140: + case 149: + case 157: + case 165: + case 173: + chan2_offset = SEC_CHAN_ABOVE; + break; + case 40: + case 48: + case 56: + case 64: + case 104: + case 112: + case 120: + case 128: + case 136: + case 144: + case 153: + case 161: + case 169: + case 177: + chan2_offset = SEC_CHAN_BELOW; + break; + } + + return chan2_offset; +} + +static void nxpwifi_convert_chan_to_band_cfg(u8 *band_cfg, + struct cfg80211_chan_def *chan_def) +{ + u8 chan_band = 0, chan_width = 0, chan2_offset = 0; + + switch (chan_def->chan->band) { + case NL80211_BAND_2GHZ: + chan_band = BAND_2GHZ; + break; + case NL80211_BAND_5GHZ: + chan_band = BAND_5GHZ; + break; + default: + break; + } + + switch (chan_def->width) { + case NL80211_CHAN_WIDTH_20_NOHT: + case NL80211_CHAN_WIDTH_20: + chan_width = CHAN_BW_20MHZ; + break; + case NL80211_CHAN_WIDTH_40: + chan_width = CHAN_BW_40MHZ; + if (chan_def->center_freq1 > chan_def->chan->center_freq) + chan2_offset = SEC_CHAN_ABOVE; + else + chan2_offset = SEC_CHAN_BELOW; + break; + case NL80211_CHAN_WIDTH_80: + chan2_offset = + nxpwifi_get_channel_2_offset(chan_def->chan->hw_value); + chan_width = CHAN_BW_80MHZ; + break; + case NL80211_CHAN_WIDTH_80P80: + case NL80211_CHAN_WIDTH_160: + default: + break; + } + + *band_cfg = ((chan2_offset << BAND_CFG_CHAN2_SHIFT_BIT) & + BAND_CFG_CHAN2_OFFSET_MASK) | + ((chan_width << BAND_CFG_CHAN_WIDTH_SHIFT_BIT) & + BAND_CFG_CHAN_WIDTH_MASK) | + ((chan_band << BAND_CFG_CHAN_BAND_SHIFT_BIT) & + BAND_CFG_CHAN_BAND_MASK); +} + +/* This function prepares channel report request command to FW for + * starting radar detection. + */ +int nxpwifi_cmd_issue_chan_report_request(struct nxpwifi_private *priv, + struct host_cmd_ds_command *cmd, + void *data_buf) +{ + struct host_cmd_ds_chan_rpt_req *cr_req = &cmd->params.chan_rpt_req; + struct nxpwifi_radar_params *radar_params = (void *)data_buf; + u16 size; + + cmd->command = cpu_to_le16(HOST_CMD_CHAN_REPORT_REQUEST); + size = S_DS_GEN; + + cr_req->chan_desc.start_freq = cpu_to_le16(NXPWIFI_A_BAND_START_FREQ); + nxpwifi_convert_chan_to_band_cfg(&cr_req->chan_desc.band_cfg, + radar_params->chandef); + cr_req->chan_desc.chan_num = radar_params->chandef->chan->hw_value; + cr_req->msec_dwell_time = cpu_to_le32(radar_params->cac_time_ms); + size += sizeof(*cr_req); + + if (radar_params->cac_time_ms) { + struct nxpwifi_ie_types_chan_rpt_data *rpt; + + rpt = (struct nxpwifi_ie_types_chan_rpt_data *)((u8 *)cmd + size); + rpt->header.type = cpu_to_le16(TLV_TYPE_CHANRPT_11H_BASIC); + rpt->header.len = cpu_to_le16(sizeof(u8)); + rpt->meas_rpt_map = 1 << MEAS_RPT_MAP_RADAR_SHIFT_BIT; + size += sizeof(*rpt); + + nxpwifi_dbg(priv->adapter, MSG, + "11h: issuing DFS Radar check for channel=%d\n", + radar_params->chandef->chan->hw_value); + } else { + nxpwifi_dbg(priv->adapter, MSG, "cancelling CAC\n"); + } + + cmd->size = cpu_to_le16(size); + + return 0; +} + +int nxpwifi_stop_radar_detection(struct nxpwifi_private *priv, + struct cfg80211_chan_def *chandef) +{ + struct nxpwifi_radar_params radar_params; + + memset(&radar_params, 0, sizeof(struct nxpwifi_radar_params)); + radar_params.chandef = chandef; + radar_params.cac_time_ms = 0; + + return nxpwifi_send_cmd(priv, HOST_CMD_CHAN_REPORT_REQUEST, + HOST_ACT_GEN_SET, 0, &radar_params, true); +} + +/* This function is to abort ongoing CAC upon stopping AP operations + * or during unload. + */ +void nxpwifi_abort_cac(struct nxpwifi_private *priv) +{ + if (priv->wdev.links[0].cac_started) { + if (nxpwifi_stop_radar_detection(priv, &priv->dfs_chandef)) + nxpwifi_dbg(priv->adapter, ERROR, + "failed to stop CAC in FW\n"); + nxpwifi_dbg(priv->adapter, MSG, + "Aborting delayed work for CAC.\n"); + cancel_delayed_work_sync(&priv->dfs_cac_work); + cfg80211_cac_event(priv->netdev, &priv->dfs_chandef, + NL80211_RADAR_CAC_ABORTED, GFP_KERNEL, 0); + } +} + +/* This function handles channel report event from FW during CAC period. + * If radar is detected during CAC, driver indicates the same to cfg80211 + * and also cancels ongoing delayed work. + */ +int nxpwifi_11h_handle_chanrpt_ready(struct nxpwifi_private *priv, + struct sk_buff *skb) +{ + struct host_cmd_ds_chan_rpt_event *rpt_event; + struct nxpwifi_ie_types_chan_rpt_data *rpt; + u16 event_len, tlv_len; + + rpt_event = (void *)(skb->data + sizeof(u32)); + event_len = skb->len - (sizeof(struct host_cmd_ds_chan_rpt_event) + + sizeof(u32)); + + if (le32_to_cpu(rpt_event->result) != HOST_RESULT_OK) { + nxpwifi_dbg(priv->adapter, ERROR, + "Error in channel report event\n"); + return -EINVAL; + } + + while (event_len >= sizeof(struct nxpwifi_ie_types_header)) { + rpt = (void *)&rpt_event->tlvbuf; + tlv_len = le16_to_cpu(rpt->header.len); + + switch (le16_to_cpu(rpt->header.type)) { + case TLV_TYPE_CHANRPT_11H_BASIC: + if (rpt->meas_rpt_map & MEAS_RPT_MAP_RADAR_MASK) { + nxpwifi_dbg(priv->adapter, MSG, + "RADAR Detected on channel %d!\n", + priv->dfs_chandef.chan->hw_value); + cancel_delayed_work_sync(&priv->dfs_cac_work); + cfg80211_cac_event(priv->netdev, + &priv->dfs_chandef, + NL80211_RADAR_CAC_ABORTED, + GFP_KERNEL, 0); + cfg80211_radar_event(priv->adapter->wiphy, + &priv->dfs_chandef, + GFP_KERNEL); + } + break; + default: + break; + } + + event_len -= (tlv_len + sizeof(rpt->header)); + } + + return 0; +} + +/* Handler for radar detected event from FW.*/ +int nxpwifi_11h_handle_radar_detected(struct nxpwifi_private *priv, + struct sk_buff *skb) +{ + struct nxpwifi_radar_det_event *rdr_event; + + rdr_event = (void *)(skb->data + sizeof(u32)); + + nxpwifi_dbg(priv->adapter, MSG, + "radar detected; indicating kernel\n"); + if (priv->wdev.links[0].cac_started) { + if (nxpwifi_stop_radar_detection(priv, &priv->dfs_chandef)) + nxpwifi_dbg(priv->adapter, ERROR, + "Failed to stop CAC in FW\n"); + cancel_delayed_work_sync(&priv->dfs_cac_work); + cfg80211_cac_event(priv->netdev, &priv->dfs_chandef, + NL80211_RADAR_CAC_ABORTED, GFP_KERNEL, 0); + } + cfg80211_radar_event(priv->adapter->wiphy, &priv->dfs_chandef, + GFP_KERNEL); + nxpwifi_dbg(priv->adapter, MSG, "regdomain: %d\n", + rdr_event->reg_domain); + nxpwifi_dbg(priv->adapter, MSG, "radar detection type: %d\n", + rdr_event->det_type); + + return 0; +} + +/* This is work function for channel switch handling. + * This function takes care of updating new channel definitin to + * bss config structure, restart AP and indicate channel switch success + * to cfg80211. + */ +void nxpwifi_dfs_chan_sw_work(struct work_struct *work) +{ + struct nxpwifi_uap_bss_param *bss_cfg; + struct delayed_work *delayed_work = to_delayed_work(work); + struct nxpwifi_private *priv = container_of(delayed_work, + struct nxpwifi_private, + dfs_chan_sw_work); + struct nxpwifi_adapter *adapter = priv->adapter; + + if (nxpwifi_del_mgmt_ies(priv)) + nxpwifi_dbg(priv->adapter, ERROR, + "Failed to delete mgmt IEs!\n"); + + bss_cfg = &priv->bss_cfg; + if (!bss_cfg->beacon_period) { + nxpwifi_dbg(adapter, ERROR, + "channel switch: AP already stopped\n"); + return; + } + + if (nxpwifi_send_cmd(priv, HOST_CMD_UAP_BSS_STOP, + HOST_ACT_GEN_SET, 0, NULL, true)) { + nxpwifi_dbg(adapter, ERROR, + "channel switch: Failed to stop the BSS\n"); + return; + } + + if (nxpwifi_cfg80211_change_beacon_data(adapter->wiphy, + priv->netdev, + &priv->beacon_after)) { + nxpwifi_dbg(adapter, ERROR, + "channel switch: Failed to set beacon\n"); + return; + } + + nxpwifi_uap_set_channel(priv, bss_cfg, priv->dfs_chandef); + + if (nxpwifi_config_start_uap(priv, bss_cfg)) { + nxpwifi_dbg(adapter, ERROR, + "Failed to start AP after channel switch\n"); + return; + } + + nxpwifi_dbg(adapter, MSG, + "indicating channel switch completion to kernel\n"); + wiphy_lock(priv->wdev.wiphy); + cfg80211_ch_switch_notify(priv->netdev, &priv->dfs_chandef, 0); + wiphy_unlock(priv->wdev.wiphy); + + if (priv->uap_stop_tx) { + netif_carrier_on(priv->netdev); + nxpwifi_wake_up_net_dev_queue(priv->netdev, adapter); + priv->uap_stop_tx = false; + } +}