From patchwork Sun Jun 14 14:28:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Cave-Ayland X-Patchwork-Id: 280538 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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 2661CC433E0 for ; Sun, 14 Jun 2020 14:45:03 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EFB5C206D7 for ; Sun, 14 Jun 2020 14:45:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EFB5C206D7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ilande.co.uk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:46236 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jkTsc-0003XU-6T for qemu-devel@archiver.kernel.org; Sun, 14 Jun 2020 10:45:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52278) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jkTf0-0000T6-QS; Sun, 14 Jun 2020 10:30:58 -0400 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]:38494 helo=mail.default.ilande.uk0.bigv.io) by eggs.gnu.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jkTey-0005Ym-20; Sun, 14 Jun 2020 10:30:58 -0400 Received: from host217-39-64-113.range217-39.btcentralplus.com ([217.39.64.113] helo=kentang.home) by mail.default.ilande.uk0.bigv.io with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jkTes-0006Hv-NQ; Sun, 14 Jun 2020 15:30:53 +0100 From: Mark Cave-Ayland To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org, laurent@vivier.eu, fthain@telegraphics.com.au Date: Sun, 14 Jun 2020 15:28:38 +0100 Message-Id: <20200614142840.10245-21-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200614142840.10245-1-mark.cave-ayland@ilande.co.uk> References: <20200614142840.10245-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 217.39.64.113 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH 20/22] adb: only call autopoll callbacks when autopoll is not blocked X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.default.ilande.uk0.bigv.io) Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.default.ilande.uk0.bigv.io X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Handle this at the ADB bus level so that individual implementations do not need to handle this themselves. Finally add an assert() into adb_request() to prevent developers from accidentally making an explicit ADB request without blocking autopoll. Signed-off-by: Mark Cave-Ayland --- hw/input/adb.c | 7 +++++-- hw/misc/mac_via.c | 6 +----- 2 files changed, 6 insertions(+), 7 deletions(-) diff --git a/hw/input/adb.c b/hw/input/adb.c index 70aa1f4570..fe0f6c7ef3 100644 --- a/hw/input/adb.c +++ b/hw/input/adb.c @@ -86,10 +86,11 @@ static int do_adb_request(ADBBusState *s, uint8_t *obuf, const uint8_t *buf, int adb_request(ADBBusState *s, uint8_t *obuf, const uint8_t *buf, int len) { + assert(s->autopoll_blocked); + return do_adb_request(s, obuf, buf, len); } -/* XXX: move that to cuda ? */ int adb_poll(ADBBusState *s, uint8_t *obuf, uint16_t poll_mask) { ADBDevice *d; @@ -181,7 +182,9 @@ static void adb_autopoll(void *opaque) { ADBBusState *s = opaque; - s->autopoll_cb(s->autopoll_cb_opaque); + if (!s->autopoll_blocked) { + s->autopoll_cb(s->autopoll_cb_opaque); + } timer_mod(s->autopoll_timer, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + diff --git a/hw/misc/mac_via.c b/hw/misc/mac_via.c index 7676545474..efe96138d0 100644 --- a/hw/misc/mac_via.c +++ b/hw/misc/mac_via.c @@ -615,11 +615,7 @@ static void adb_via_poll(void *opaque) * received, however we must block autopoll until the point where * the entire reply has been read back to the host */ - if (adb_bus->autopoll_blocked) { - return; - } else { - adb_autopoll_block(adb_bus); - } + adb_autopoll_block(adb_bus); m->adb_data_in_index = 0; m->adb_data_out_index = 0;