From patchwork Tue Aug 22 19:18:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manos Pitsidianakis X-Patchwork-Id: 13361352 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id CE08DEE49AE for ; Tue, 22 Aug 2023 19:19:55 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qYWum-0005ll-Ud; Tue, 22 Aug 2023 15:19:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qYWuk-0005ky-Pk for qemu-devel@nongnu.org; Tue, 22 Aug 2023 15:19:42 -0400 Received: from mail-wr1-x42f.google.com ([2a00:1450:4864:20::42f]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qYWui-0000rm-KH for qemu-devel@nongnu.org; Tue, 22 Aug 2023 15:19:42 -0400 Received: by mail-wr1-x42f.google.com with SMTP id ffacd0b85a97d-319e93a1594so4438011f8f.1 for ; Tue, 22 Aug 2023 12:19:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1692731971; x=1693336771; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=1AGKeTlgEQufWXz+jQaxQMPXl1nt41VP3hKGMfA/IkQ=; b=HVnohcVfYdp1mSbLqoHgs5S35jBS29f7QH7jt9V5A2vu0RehlNHSO5GkMxhleWYTxs Zp68xRsf3LKD8VfiaOCzBAL/Av3h7kwSx5oL9rOLa377A/EDmGSrTLjV6YMdQOqwa8DC lrksbTXvtQHjU5JrOE2nJhq3WMBd4JL2U+rf6dpdyh3z8geTOBDXbwdxvFLAy42mqWrF 6+j+BWIFpQsVsI0YAO4Nc6QmyA3kavRnKUtW22JBNnrJdZ8K01cTxYF+xRdI6O8/MQQo Qkhu3v90WRPlTV86yT3qGJcbCTjn8SsLMKcoJbuZZD4P9h7tPzXM01/GAGA7zWSSL1y7 qU2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692731971; x=1693336771; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=1AGKeTlgEQufWXz+jQaxQMPXl1nt41VP3hKGMfA/IkQ=; b=L8qppfAgQlMbm6v5NPYGXB06nOiZyUMW3Z2ozbacr1BcbLBKAaH1y/Zke9DLBvof1i OA0GGJ6UDhNBCedd7xhbUqujInqYvDd20bKsfY8dnAU3N9P0/cYqZ52WCCudYGqBpdfY M9vgHlawwuPlMNPXXrSHa+JGlBIAB46z/LprZedW9oJfOzuhLtdbal3rSqrm4X1GgL0l 2vHqfNnQzmcRx5xE4flAb8aUxvlgMPv8OQTAYrqQJusy5Zf6WDe2WNRIXYdi2JVFedeg soLxBHO1Y3YciC+MwlRztMt70JiXDRs7s//dtxGE4dnBRwxPI6vc3axZyw7wt1Iq41D9 nWFw== X-Gm-Message-State: AOJu0YwbBWdpx2VXl55fpdSOYun3TMSjgnrMN0QCFM6fjJBIq9gLs3Ym o96+Z+4pn8Bm3ZxwboLoM/aCQdWx7zAFzk5p4fM= X-Google-Smtp-Source: AGHT+IGL+HhvwsKuWMZobxhMUvyw6FHi/0Do0DzsyjaD/4NpdaPLQB55eB9u+eyXzTDg4nFS/O4BPg== X-Received: by 2002:a5d:4850:0:b0:319:79b4:a8ba with SMTP id n16-20020a5d4850000000b0031979b4a8bamr7705367wrs.41.1692731971240; Tue, 22 Aug 2023 12:19:31 -0700 (PDT) Received: from localhost.localdomain (adsl-200.109.242.225.tellas.gr. [109.242.225.200]) by smtp.gmail.com with ESMTPSA id n4-20020a05600c294400b003fe2a40d287sm126905wmd.1.2023.08.22.12.19.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Aug 2023 12:19:30 -0700 (PDT) From: Emmanouil Pitsidianakis To: qemu-devel@nongnu.org Cc: Emmanouil Pitsidianakis , "Igor Skalkin" , "Anton Yakovlev" , "Paolo Bonzini" , "Gerd Hoffmann" , "Michael S. Tsirkin" , "Marcel Apfelbaum" , =?utf-8?q?Daniel_P=2E_Berr?= =?utf-8?q?ang=C3=A9?= , "Eduardo Habkost" , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , =?utf-8?q?Volker_R=C3=BCmelin?= , =?utf-8?b?S8WRdsOh?= =?utf-8?b?Z8OzLCBab2x0w6Fu?= , =?utf-8?q?Alex_Benn?= =?utf-8?q?=C3=A9e?= , =?utf-8?q?Philippe_Mathieu-Da?= =?utf-8?q?ud=C3=A9?= Subject: [PATCH v7 08/12] virtio-sound: handle VIRTIO_SND_R_PCM_PREPARE Date: Tue, 22 Aug 2023 22:18:31 +0300 Message-Id: <1e4bef953f4d7de41a54106e2ffc43a447181747.1692731646.git.manos.pitsidianakis@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::42f; envelope-from=manos.pitsidianakis@linaro.org; helo=mail-wr1-x42f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org Handles the PCM prepare control request. It initializes a PCM stream when the guests asks for it. Signed-off-by: Emmanouil Pitsidianakis --- hw/virtio/virtio-snd.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/hw/virtio/virtio-snd.c b/hw/virtio/virtio-snd.c index b9d17c29a4..87f8469f14 100644 --- a/hw/virtio/virtio-snd.c +++ b/hw/virtio/virtio-snd.c @@ -431,6 +431,27 @@ static uint32_t virtio_snd_pcm_prepare_impl(VirtIOSound *s, uint32_t stream_id) return VIRTIO_SND_S_OK; } +/* + * Handles VIRTIO_SND_R_PCM_PREPARE. + * + * @s: VirtIOSound device + * @cmd: The request command queue element from VirtIOSound cmdq field + */ +static void virtio_snd_handle_pcm_prepare(VirtIOSound *s, + virtio_snd_ctrl_command *cmd) +{ + uint32_t stream_id; + size_t sz = iov_to_buf(cmd->elem->out_sg, + cmd->elem->out_num, + sizeof(virtio_snd_hdr), + &stream_id, + sizeof(stream_id)); + + cmd->resp.code = sz == sizeof(uint32_t) + ? virtio_snd_pcm_prepare_impl(s, stream_id) + : VIRTIO_SND_S_BAD_MSG; +} + /* * Handles VIRTIO_SND_R_PCM_START. * @@ -509,6 +530,8 @@ process_cmd(VirtIOSound *s, virtio_snd_ctrl_command *cmd) virtio_snd_handle_pcm_set_params(s, cmd); break; case VIRTIO_SND_R_PCM_PREPARE: + virtio_snd_handle_pcm_prepare(s, cmd); + break; case VIRTIO_SND_R_PCM_RELEASE: cmd->resp.code = VIRTIO_SND_S_NOT_SUPP; break;