From patchwork Sun Nov 26 19:18:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Kemnade X-Patchwork-Id: 747433 Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from mail.andi.de1.cc (mail.andi.de1.cc [IPv6:2a02:c205:3004:2154::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C3C38101 for ; Sun, 26 Nov 2023 11:47:00 -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> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 };