From patchwork Wed Sep 1 23:42:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Ogorchock X-Patchwork-Id: 506034 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, 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 9DA9CC43214 for ; Wed, 1 Sep 2021 23:42:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 87F8E61053 for ; Wed, 1 Sep 2021 23:42:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237500AbhIAXnx (ORCPT ); Wed, 1 Sep 2021 19:43:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45680 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232479AbhIAXnw (ORCPT ); Wed, 1 Sep 2021 19:43:52 -0400 Received: from mail-qt1-x82a.google.com (mail-qt1-x82a.google.com [IPv6:2607:f8b0:4864:20::82a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8BE7DC061575 for ; Wed, 1 Sep 2021 16:42:55 -0700 (PDT) Received: by mail-qt1-x82a.google.com with SMTP id b4so96401qtx.0 for ; Wed, 01 Sep 2021 16:42:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=4hI8ev2OTj2sYH2K1byscZJGz6u4ZmDOCxwsDBwpXjE=; b=D0MKEjg9zSnttUGhUL2MySHIAW5QM7GAzK0sbLJOmrpdRCyUl1TOLr21htvG0DjGJH oou/dS6yxd2PlZ8/5MUfEtc+R+Med1XwzAJ67DaoGeGmf2dJ7LrJtdRmXwh3/pC9wWjS lIRvVcMawyvR4U7/NRu/Q6M6DnEdmUOfJ5VYH1vkoEoNiLaQTuZSb23OClHjqeIDZG/X HiNyr7xW54qm6vJVAQN8RHd0z7onAS7Oc0kAmD+2RGIcYBX+EhgDJEvBcaC4OQq2d8bu icD1sVAozbdXg35seSjARHCvtAH30GC2GUl//ag5dyb3MtE1RHQzrSH4qR+yqa3i/kAg X/aw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=4hI8ev2OTj2sYH2K1byscZJGz6u4ZmDOCxwsDBwpXjE=; b=tN66jIOwvqHz4KHhR8KAqLRqK4yTBXIAs//MK7h3P+PiWxxQznCRgsCYIL3N7KyRxW zCpa9wiOZiR6FEf9hZ9XdItlWec6+132eOmmmhcgampjvCivK43CqHX5zpifTIolttmv ihe/oFcd1x8O47EPvXQS4Bf46qvY0Y99d/5WOLzHjunskdPl7XQ+pSEzRKaUFzHhkufW ZkMLwaPcuUk+jf8bau6YolZ7kIgPRedj2AdvsWpIYUu2G53RO6ZNiBVhC14VeACzb6uI lprJNCUqBesQxE/qAt/4xpnUd/SO0qDFttHqn+jrh2XjT3ZQa8QVl8OiPePQznRZFhXz U+bQ== X-Gm-Message-State: AOAM5300OK5kbioQSPd0z0YUdNtJH1F6wrrYceayYN88SmaKoyWnwvTV 14JWe+xOgAH8WY3qzlhcZkNeOE06QT8= X-Google-Smtp-Source: ABdhPJxQ23OOFi3MeuCANLveF+/e1pv111bUFEvP2TCjiQxvjGrpiQK6seOpbq3VN//dwhtlfR/a2Q== X-Received: by 2002:ac8:4a04:: with SMTP id x4mr308741qtq.301.1630539774626; Wed, 01 Sep 2021 16:42:54 -0700 (PDT) Received: from Arrakis.djogorchock.com (pool-173-68-59-147.nycmny.fios.verizon.net. [173.68.59.147]) by smtp.gmail.com with ESMTPSA id n5sm13422qtp.35.2021.09.01.16.42.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Sep 2021 16:42:54 -0700 (PDT) From: "Daniel J. Ogorchock" To: linux-input@vger.kernel.org Cc: thunderbird2k@gmail.com, blaws05@gmail.com, benjamin.tissoires@redhat.com, jikos@kernel.org, Roderick.Colenbrander@sony.com, svv@google.com, s.jegen@gmail.com, carmueller@gmail.com, pgriffais@valvesoftware.com, hadess@hadess.net, pobrn@protonmail.com, "Daniel J. Ogorchock" Subject: [PATCH v15 08/16] HID: nintendo: reduce device removal subcommand errors Date: Wed, 1 Sep 2021 19:42:28 -0400 Message-Id: <20210901234236.3113-9-djogorchock@gmail.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210901234236.3113-1-djogorchock@gmail.com> References: <20210901234236.3113-1-djogorchock@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org This patch fixes meaningless error output from trying to send subcommands immediately after controller removal. It now disables subcommands as soon as possible on removal. Signed-off-by: Daniel J. Ogorchock --- drivers/hid/hid-nintendo.c | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo.c index daa95fa8e9a0b..c13fcd777fa21 100644 --- a/drivers/hid/hid-nintendo.c +++ b/drivers/hid/hid-nintendo.c @@ -230,6 +230,7 @@ static const struct joycon_rumble_amp_data joycon_rumble_amplitudes[] = { enum joycon_ctlr_state { JOYCON_CTLR_STATE_INIT, JOYCON_CTLR_STATE_READ, + JOYCON_CTLR_STATE_REMOVED, }; struct joycon_stick_cal { @@ -458,6 +459,14 @@ static int joycon_send_subcmd(struct joycon_ctlr *ctlr, unsigned long flags; spin_lock_irqsave(&ctlr->lock, flags); + /* + * If the controller has been removed, just return ENODEV so the LED + * subsystem doesn't print invalid errors on removal. + */ + if (ctlr->ctlr_state == JOYCON_CTLR_STATE_REMOVED) { + spin_unlock_irqrestore(&ctlr->lock, flags); + return -ENODEV; + } memcpy(subcmd->rumble_data, ctlr->rumble_data[ctlr->rumble_queue_tail], JC_RUMBLE_DATA_SIZE); spin_unlock_irqrestore(&ctlr->lock, flags); @@ -807,10 +816,13 @@ static void joycon_rumble_worker(struct work_struct *work) mutex_lock(&ctlr->output_mutex); ret = joycon_enable_rumble(ctlr); mutex_unlock(&ctlr->output_mutex); - if (ret < 0) - hid_warn(ctlr->hdev, "Failed to set rumble; e=%d", ret); + /* -ENODEV means the controller was just unplugged */ spin_lock_irqsave(&ctlr->lock, flags); + if (ret < 0 && ret != -ENODEV && + ctlr->ctlr_state != JOYCON_CTLR_STATE_REMOVED) + hid_warn(ctlr->hdev, "Failed to set rumble; e=%d", ret); + ctlr->rumble_msecs = jiffies_to_msecs(jiffies); if (ctlr->rumble_queue_tail != ctlr->rumble_queue_head) { if (++ctlr->rumble_queue_tail >= JC_RUMBLE_QUEUE_SIZE) @@ -1520,9 +1532,17 @@ static int nintendo_hid_probe(struct hid_device *hdev, static void nintendo_hid_remove(struct hid_device *hdev) { struct joycon_ctlr *ctlr = hid_get_drvdata(hdev); + unsigned long flags; hid_dbg(hdev, "remove\n"); + + /* Prevent further attempts at sending subcommands. */ + spin_lock_irqsave(&ctlr->lock, flags); + ctlr->ctlr_state = JOYCON_CTLR_STATE_REMOVED; + spin_unlock_irqrestore(&ctlr->lock, flags); + destroy_workqueue(ctlr->rumble_queue); + hid_hw_close(hdev); hid_hw_stop(hdev); }