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Wed, 27 Sep 2023 16:33:23 +0000 From: =?utf-8?b?SsOpcsO0bWUgUG91aWxsZXI=?= To: Kalle Valo Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?b?SsOpcsO0bWUgUG91aWxsZXI=?= Subject: [PATCH v2 4/9] wifi: wfx: introduce hif_scan_uniq() Date: Wed, 27 Sep 2023 18:32:52 +0200 Message-Id: <20230927163257.568496-5-jerome.pouiller@silabs.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230927163257.568496-1-jerome.pouiller@silabs.com> References: <20230927163257.568496-1-jerome.pouiller@silabs.com> X-ClientProxiedBy: DS7PR06CA0052.namprd06.prod.outlook.com (2603:10b6:8:54::30) To IA1PR11MB7773.namprd11.prod.outlook.com (2603:10b6:208:3f0::21) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: IA1PR11MB7773:EE_|CO1PR11MB5041:EE_ X-MS-Office365-Filtering-Correlation-Id: 6756ae1d-7477-4d58-4c4a-08dbbf7776f5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; 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However, it only allows to probe one channel and disable probe requests. It works very well to implement Remain-On-Channel. Signed-off-by: Jérôme Pouiller --- drivers/net/wireless/silabs/wfx/hif_tx.c | 25 ++++++++++++++++++++++++ drivers/net/wireless/silabs/wfx/hif_tx.h | 1 + 2 files changed, 26 insertions(+) diff --git a/drivers/net/wireless/silabs/wfx/hif_tx.c b/drivers/net/wireless/silabs/wfx/hif_tx.c index de5a31482df38..9f403d275cb13 100644 --- a/drivers/net/wireless/silabs/wfx/hif_tx.c +++ b/drivers/net/wireless/silabs/wfx/hif_tx.c @@ -238,6 +238,31 @@ int wfx_hif_write_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id, void *val, s return ret; } +/* Hijack scan request to implement Remain-On-Channel */ +int wfx_hif_scan_uniq(struct wfx_vif *wvif, struct ieee80211_channel *chan, int duration) +{ + int ret; + struct wfx_hif_msg *hif; + size_t buf_len = sizeof(struct wfx_hif_req_start_scan_alt) + sizeof(u8); + struct wfx_hif_req_start_scan_alt *body = wfx_alloc_hif(buf_len, &hif); + + if (!hif) + return -ENOMEM; + body->num_of_ssids = HIF_API_MAX_NB_SSIDS; + body->maintain_current_bss = 1; + body->disallow_ps = 1; + body->tx_power_level = cpu_to_le32(chan->max_power); + body->num_of_channels = 1; + body->channel_list[0] = chan->hw_value; + body->max_transmit_rate = API_RATE_INDEX_B_1MBPS; + body->min_channel_time = cpu_to_le32(duration); + body->max_channel_time = cpu_to_le32(duration * 110 / 100); + wfx_fill_header(hif, wvif->id, HIF_REQ_ID_START_SCAN, buf_len); + ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false); + kfree(hif); + return ret; +} + int wfx_hif_scan(struct wfx_vif *wvif, struct cfg80211_scan_request *req, int chan_start_idx, int chan_num) { diff --git a/drivers/net/wireless/silabs/wfx/hif_tx.h b/drivers/net/wireless/silabs/wfx/hif_tx.h index 71817a6571f0b..aab54df6aafa6 100644 --- a/drivers/net/wireless/silabs/wfx/hif_tx.h +++ b/drivers/net/wireless/silabs/wfx/hif_tx.h @@ -54,6 +54,7 @@ int wfx_hif_beacon_transmit(struct wfx_vif *wvif, bool enable); int wfx_hif_update_ie_beacon(struct wfx_vif *wvif, const u8 *ies, size_t ies_len); int wfx_hif_scan(struct wfx_vif *wvif, struct cfg80211_scan_request *req80211, int chan_start, int chan_num); +int wfx_hif_scan_uniq(struct wfx_vif *wvif, struct ieee80211_channel *chan, int duration); int wfx_hif_stop_scan(struct wfx_vif *wvif); int wfx_hif_configuration(struct wfx_dev *wdev, const u8 *conf, size_t len); int wfx_hif_shutdown(struct wfx_dev *wdev);