From patchwork Fri Feb 11 15:07:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Venkateswara Naralasetty \(QUIC\)" X-Patchwork-Id: 542507 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C40BBC433F5 for ; Fri, 11 Feb 2022 15:08:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351211AbiBKPIK (ORCPT ); Fri, 11 Feb 2022 10:08:10 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:56990 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239481AbiBKPIJ (ORCPT ); Fri, 11 Feb 2022 10:08:09 -0500 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4CB58A9 for ; Fri, 11 Feb 2022 07:08:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1644592088; x=1676128088; h=from:to:cc:subject:date:message-id:mime-version; bh=AuXDkI9+kh9A1KXh26b2o4XoOQeIE+GS3ZWplul/L9c=; b=tU06Trm3Yi8eKHRZE2WwT2axzoNxLtt/aLUsHoneYvIny/N/2lcHeFI9 AZ0Rt7B8uCKy6RQL7uYPLwxjyVRhyQ9WGnnbT1KuHweY69gk0EPWmWxke Cg7v45tXkCkiTNr/WGno+IAmaazwPaLGydxHzR2BGr5smT0OluLVoYNjD E=; Received: from unknown (HELO ironmsg05-sd.qualcomm.com) ([10.53.140.145]) by alexa-out-sd-02.qualcomm.com with ESMTP; 11 Feb 2022 07:08:08 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg05-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Feb 2022 07:08:07 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.15; Fri, 11 Feb 2022 07:08:07 -0800 Received: from vnaralas-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 11 Feb 2022 07:08:05 -0800 From: Venkateswara Naralasetty To: CC: , Venkateswara Naralasetty Subject: [PATCH 0/6] ath11k: add single shot/periodic CFR capture support for IPQ8074 Date: Fri, 11 Feb 2022 20:37:49 +0530 Message-ID: <1644592075-27082-1-git-send-email-quic_vnaralas@quicinc.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org This Channel Frequency Response feature is to get the channel state information from the hardware and send the CSI data to userspace. CFR dumps will be collected from the received ACK's for the transmited QOS NULL frames for the associated stations. For unassociated stations CFR dumps will be collected from the probe response ACK. CFR format to user space: ___________________________________________ | CFR header | CFR payload | CFR tail data | |____________|_____________|_______________| CFR header contains the following fields, * Start magic number 0xDEADBEAF - 4bytes * vendor id - 4bytes * cfr metadata version - 1byte * cfr data version - 1byte * chip type - 1byte * platform type - 1byte * CFR metadata length - 4bytes * metadata - 92bytes peer mac - 6bytes capture status - 1byte (1 for success 0 for failure) capture_bw - 1byte channel_bw - 1byte phy_mode - 1byte prim20_chan - 2bytes center_freq1 - 2bytes center_freq2 - 2bytes capture_mode - 1byte capture_type - 1byte sts_count - 1byte num_rx_chain - 1byte timestamp - 4bytes length - 4bytes chain_rssi - 32bytes (4bytes for each chain) chain_phase - 16bytes (2bytes for each chain) cfo_measurement - 4bytes agc_gain - 8bytes (1 bytes for each chain) rx_start_ts - 4bytes CFR payload: CFR payload contains 8bytes of ucode header followed by the tone information. Tone order is positive tones, followed by PHY memory garbage, followed by negative tones. Dummy tones are uploaded to make number of tones always integer number of 64. Number of tones is not preamble type dependent. Each CFR tone has 14-bit I component and 14-bit Q component and is sign extended to 16-bit I/Q. Two tones are packed into one 64-bit unit as: [63:0] = [Tone1_Q(63:48) Tone1_I(47:32) Tone0_Q(31:16) Tone0_I(15:0)] CFR tail: end magic number 0xBEAFDEAD Tested-on: IPQ8074 WLAN.HK.2.5.0.1-00991-QCAHKSWPL_SILICONZ-1 Venkateswara Naralasetty (6): nl80211: vendor-cmd: qca: add command for CFR configuration ath11k: CFR module initialization and deinitialization for IPQ8074 ath11k: register relayfs entries for CFR dump ath11k: register vendor sub command for CFR configuration ath11k: Register DBR event handler for CFR data ath11k: Register handler for CFR capture event drivers/net/wireless/ath/ath11k/Kconfig | 9 + drivers/net/wireless/ath/ath11k/Makefile | 4 +- drivers/net/wireless/ath/ath11k/cfr.c | 816 +++++++++++++++++++++++++++++++ drivers/net/wireless/ath/ath11k/cfr.h | 304 ++++++++++++ drivers/net/wireless/ath/ath11k/core.c | 35 ++ drivers/net/wireless/ath/ath11k/core.h | 17 + drivers/net/wireless/ath/ath11k/dbring.c | 33 +- drivers/net/wireless/ath/ath11k/dbring.h | 7 + drivers/net/wireless/ath/ath11k/debug.h | 2 + drivers/net/wireless/ath/ath11k/hal.c | 3 +- drivers/net/wireless/ath/ath11k/hw.h | 5 + drivers/net/wireless/ath/ath11k/mac.c | 18 +- drivers/net/wireless/ath/ath11k/vendor.c | 192 ++++++++ drivers/net/wireless/ath/ath11k/vendor.h | 13 + drivers/net/wireless/ath/ath11k/wmi.c | 148 +++++- drivers/net/wireless/ath/ath11k/wmi.h | 97 +++- include/uapi/linux/nl80211-vnd-qca.h | 104 ++++ 17 files changed, 1791 insertions(+), 16 deletions(-) create mode 100644 drivers/net/wireless/ath/ath11k/cfr.c create mode 100644 drivers/net/wireless/ath/ath11k/cfr.h create mode 100644 drivers/net/wireless/ath/ath11k/vendor.c create mode 100644 drivers/net/wireless/ath/ath11k/vendor.h create mode 100644 include/uapi/linux/nl80211-vnd-qca.h