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[23.128.96.35]) by mx.google.com with ESMTPS id 29-20020a630c5d000000b005bdbd1fe067si8390649pgm.141.2023.11.26.11.19.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 26 Nov 2023 11:19:10 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) client-ip=23.128.96.35; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by groat.vger.email (Postfix) with ESMTP id 490428086506; Sun, 26 Nov 2023 11:19:05 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at groat.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229472AbjKZTSu (ORCPT + 99 others); Sun, 26 Nov 2023 14:18:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229436AbjKZTSs (ORCPT ); Sun, 26 Nov 2023 14:18:48 -0500 Received: from mail.andi.de1.cc (mail.andi.de1.cc [IPv6:2a02:c205:3004:2154::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 33B1BFA for ; Sun, 26 Nov 2023 11:18:53 -0800 (PST) Received: from p200301077700a9001a3da2fffebfd33a.dip0.t-ipconnect.de ([2003:107:7700:a900:1a3d:a2ff:febf:d33a] helo=aktux) by mail.andi.de1.cc with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1r7KeS-006khP-Q1; Sun, 26 Nov 2023 20:18:44 +0100 Received: from andi by aktux with local (Exim 4.96) (envelope-from ) id 1r7KeS-000Slf-0U; Sun, 26 Nov 2023 20:18:44 +0100 From: Andreas Kemnade To: marcel@holtmann.org, johan.hedberg@gmail.com, luiz.dentz@gmail.com, johan@kernel.org, arnd@arndb.de, gregkh@linuxfoundation.org, andreas@kemnade.info, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, tomi.valkeinen@ideasonboard.com, Tony Lindgren , =?utf-8?q?P=C3=A9ter_Ujfalusi?= , robh@kernel.org Subject: [RFC PATCH 1/3] gnss: Add AI2 protocol used by some TI combo chips. Date: Sun, 26 Nov 2023 20:18:38 +0100 Message-Id: <20231126191840.110564-2-andreas@kemnade.info> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231126191840.110564-1-andreas@kemnade.info> References: <20231126191840.110564-1-andreas@kemnade.info> MIME-Version: 1.0 X-Spam-Status: No, score=-0.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on groat.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Sun, 26 Nov 2023 11:19:05 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1783655407011303290 X-GMAIL-MSGID: 1783655407011303290 Texas Instruments uses something called Air Independent Interface (AI2) for their WLAN/BT/GPS combo chips. No public documentation is available, by looking into captured data, it becomes clear that you can either raw data or encapsulated NMEA after some initialization commands. Signed-off-by: Andreas Kemnade --- drivers/gnss/core.c | 1 + include/linux/gnss.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/gnss/core.c b/drivers/gnss/core.c index 48f2ee0f78c4d..cac9f45aec4b2 100644 --- a/drivers/gnss/core.c +++ b/drivers/gnss/core.c @@ -335,6 +335,7 @@ static const char * const gnss_type_names[GNSS_TYPE_COUNT] = { [GNSS_TYPE_SIRF] = "SiRF", [GNSS_TYPE_UBX] = "UBX", [GNSS_TYPE_MTK] = "MTK", + [GNSS_TYPE_AI2] = "AI2", }; static const char *gnss_type_name(const struct gnss_device *gdev) diff --git a/include/linux/gnss.h b/include/linux/gnss.h index 36968a0f33e8d..16b565dab83ea 100644 --- a/include/linux/gnss.h +++ b/include/linux/gnss.h @@ -23,6 +23,7 @@ enum gnss_type { GNSS_TYPE_SIRF, GNSS_TYPE_UBX, GNSS_TYPE_MTK, + GNSS_TYPE_AI2, GNSS_TYPE_COUNT };