From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 794E7C64EBC for ; Wed, 3 Oct 2018 11:35:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3D7AC213A2 for ; Wed, 3 Oct 2018 11:35:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="MFL/KetA"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="O0H5PBh4" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3D7AC213A2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727325AbeJCSXS (ORCPT ); Wed, 3 Oct 2018 14:23:18 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:55648 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726617AbeJCSXS (ORCPT ); Wed, 3 Oct 2018 14:23:18 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 3819860C72; Wed, 3 Oct 2018 11:35:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1538566517; bh=Dx6hgdqcp5/Sk72Wp06vKywV8EGpB2K6sg2z2s5BXiU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MFL/KetAQlgHVdonGW0gdXqxjjN7/qjono26LcTbr/6Z0k7M0MnGyw7Gfiw5ONQYs rlweLj5dW+9L33/WzjWokmzLje01m58PddB/p+FjpjcyHqPpEBSMn7n5Zg4z3IfNz+ nY3CHO7vORG8nCoqSOhH5Vy/f722vUgSFWYwPPsQ= Received: from aneelaka-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: aneela@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id DB7C360C85; Wed, 3 Oct 2018 11:35:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1538566516; bh=Dx6hgdqcp5/Sk72Wp06vKywV8EGpB2K6sg2z2s5BXiU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=O0H5PBh4Ec86a9c7wVGhTgenGR/+dnxZoXq0/KSSVQsWPBql3FO/lmUxrDMMNxSjM HbFGn04FylYxe0eLtMcLDfNog7aaDpPMXUClITkvTGS1qLEWcIjXxaNmBTOws4e+WM Tqqe4P1AzVwLq1qwOHxuxvl+fUkFF4eoSC9+S47c= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org DB7C360C85 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=aneela@codeaurora.org From: Arun Kumar Neelakantam To: ohad@wizery.com, bjorn.andersson@linaro.org, clew@codeaurora.org, sricharan@codeaurora.org Cc: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, Arun Kumar Neelakantam Subject: [PATCH 5/5] rpmsg: glink: Convert the native signals to TIOCM Date: Wed, 3 Oct 2018 17:04:23 +0530 Message-Id: <1538566463-24627-6-git-send-email-aneela@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1538566463-24627-1-git-send-email-aneela@codeaurora.org> References: <1538566463-24627-1-git-send-email-aneela@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Native signals over SMEM transport are different from Linux TIOCM signals. Add a macro to convert signals when sent or received from clients. Signed-off-by: Arun Kumar Neelakantam --- drivers/rpmsg/qcom_glink_native.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c index ff8751b..3054c86 100644 --- a/drivers/rpmsg/qcom_glink_native.c +++ b/drivers/rpmsg/qcom_glink_native.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -211,6 +212,11 @@ struct glink_channel { #define GLINK_FEATURE_INTENTLESS BIT(1) +#define NATIVE_DTR_SIG BIT(31) +#define NATIVE_CTS_SIG BIT(30) +#define NATIVE_CD_SIG BIT(29) +#define NATIVE_RI_SIG BIT(28) + static void qcom_glink_rx_done_work(struct work_struct *work); static struct glink_channel *qcom_glink_alloc_channel(struct qcom_glink *glink, @@ -998,6 +1004,18 @@ static int qcom_glink_handle_signals(struct qcom_glink *glink, } old = channel->rsigs; + + /* convert signals from NATIVE to TIOCM */ + if (signals & NATIVE_DTR_SIG) + signals |= TIOCM_DSR; + if (signals & NATIVE_CTS_SIG) + signals |= TIOCM_CTS; + if (signals & NATIVE_CD_SIG) + signals |= TIOCM_CD; + if (signals & NATIVE_RI_SIG) + signals |= TIOCM_RI; + signals &= 0x0fff; + channel->rsigs = signals; if (channel->ept.sig_cb) @@ -1387,6 +1405,17 @@ static int qcom_glink_set_sigs(struct rpmsg_endpoint *ept, u32 sigs) channel->lsigs = sigs; + /* convert signals from TIOCM to NATIVE */ + sigs &= 0x0fff; + if (sigs & TIOCM_DTR) + sigs |= NATIVE_DTR_SIG; + if (sigs & TIOCM_RTS) + sigs |= NATIVE_CTS_SIG; + if (sigs & TIOCM_CD) + sigs |= NATIVE_CD_SIG; + if (sigs & TIOCM_RI) + sigs |= NATIVE_RI_SIG; + return qcom_glink_send_signals(glink, channel, sigs); } -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project