From nobody Mon Nov 25 01:33:53 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1719295936; cv=none; d=zohomail.com; s=zohoarc; b=Lo2Gyr4HCpRmEa66Ht52DeEcbIxyUJrrEe8BabhQOH9YFEOSmW/CBdqKfFa/Z22FsK+PsIYLOwYgtyDPUPQSW+/Ajmw5sxzQDJZAh3RUqv4bYJIXYfpXQ1Xyx1ceUUei5qt8Thmc98E+uxBlZvZS2R+Y2nV44nqnF9MAlIzS8Q4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1719295936; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=OOp+gWdjMuwGu4rb7U+zCds5Wp19J2oG3xmA1hxsBHQ=; b=LTZAIxbjrUeLdMwMfov5TpXWWle9GmvZGkRimIzUKGQGSch8dqU/1D9RpZ+2EEZag2FZr5ENz8y1L5J/pPlvLQ/r0LUz7F/w3jbx2if6ljlaScmJwA7tpLtvmxP5OJj6C48W0qBvhWsdQ/Gv420KAkZPKVCJ9RBCg1VIQACLS0k= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1719295936227532.238302390101; Mon, 24 Jun 2024 23:12:16 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sLzNx-000839-1R; Tue, 25 Jun 2024 02:10:33 -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 1sLzNv-00080d-Ij for qemu-devel@nongnu.org; Tue, 25 Jun 2024 02:10:31 -0400 Received: from mail-wm1-x335.google.com ([2a00:1450:4864:20::335]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sLzNs-0005af-Fz for qemu-devel@nongnu.org; Tue, 25 Jun 2024 02:10:31 -0400 Received: by mail-wm1-x335.google.com with SMTP id 5b1f17b1804b1-42499b98d4cso5023205e9.2 for ; Mon, 24 Jun 2024 23:10:27 -0700 (PDT) Received: from m1x-phil.lan (bd137-h02-176-184-46-22.dsl.sta.abo.bbox.fr. [176.184.46.22]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4247d208b27sm199003165e9.30.2024.06.24.23.10.23 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 24 Jun 2024 23:10:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1719295825; x=1719900625; darn=nongnu.org; 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=OOp+gWdjMuwGu4rb7U+zCds5Wp19J2oG3xmA1hxsBHQ=; b=n630eRWumUcz3g4Lm0UQ7noSKshd8ihucYStq9prsPprgbe4NtxJUzvA7eFKn/SbhZ TGtwZ2MuR3ljsBg+iKrIZkrN5c0qBz3ie1fp3QbmY8MEOEpNq+q1QHezPqzusf2y/Cca ktiHR8R1wQEJGCw0V5099AL7F/Q4NBVM9RyGuCN1IO400+HTGl9u/tCZtUziZlW1ySJ9 2sgSN0Xh4O2eQpi9a6d4krivVK7VGxCIgabI+3HFOZBz8qoEdvSNQc0bog1YAngT7zQR Yz8Aoawf8ipx5bSFMnd0LqO6DKar1gpm4/AmTnU+p3hxgTcTpGIlFn9pI1uDlPGeqxi7 kWlg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719295825; x=1719900625; 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=OOp+gWdjMuwGu4rb7U+zCds5Wp19J2oG3xmA1hxsBHQ=; b=qu8kxhB+SZAGqILo6cYNunSDI9NCG9ZI8lp/JyKNw/qQanKbxI+cBXWEMN5Vy7PBq5 P9SSh9hNAaBsVLQOJQoeqTmvW2tmQwDUpXfPuB33wZKTYWJO4JsQSaQmOsuECH9FpqWB Nz9zPs3yPo/QCxKapynGashxn9QOC2VOjogNvoDJWWEV2Fu2NNgzv1H8r+oeMJaC6Ab3 WMVoidADWhcdtn3U1Ynk2doI/0r2roPP02BzvaOYdKqDyx4MJPN8c36z4Eq4l5fcWmmS 8gaCLzxbPzxMNZd7i2fqqiFzFLgAB95LIgbZ5Up4WiCMi88etLTr1rAh9wFBcn3LZdos TGqQ== X-Gm-Message-State: AOJu0YxuvZ8gr93rpZq6SaLwqnJVkFl6fEKVyIO+epsDMVl1BqBQ9VLT t66Z+3np0rD32BPx5i7ge1vSgSjDFUDrkQQ85m+FZUgCiP62DUinoqrK1QEV6jtDQmPGhOlAXgy 0 X-Google-Smtp-Source: AGHT+IFpJAu8q1x9NhRYBKdwXH/f8lsh2EluCQz5UxawJ4d5I7wmkcveBL738Yrh5YqjyCE91IJGSw== X-Received: by 2002:a7b:cc16:0:b0:424:8e3a:d020 with SMTP id 5b1f17b1804b1-42498ced472mr16457305e9.29.1719295825612; Mon, 24 Jun 2024 23:10:25 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , qemu-block@nongnu.org, Bin Meng , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH 01/11] hw/sd/sdcard: Introduce sd_cmd_to_sendingdata and sd_generic_read_byte Date: Tue, 25 Jun 2024 08:10:05 +0200 Message-ID: <20240625061015.24095-2-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240625061015.24095-1-philmd@linaro.org> References: <20240625061015.24095-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::335; envelope-from=philmd@linaro.org; helo=mail-wm1-x335.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=unavailable 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1719295937575100015 All commands switching from TRANSFER state to (sending)DATA do the same: send stream of data on the DAT lines. Instead of duplicating the same code many times, introduce 2 helpers: - sd_cmd_to_sendingdata() on the I/O line setup the data to be transferred, - sd_generic_read_byte() on the DAT lines to fetch the data. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/sd/sd.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 6685fba4bb..89006ba1b6 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -142,8 +142,10 @@ struct SDState { */ bool expecting_acmd; uint32_t blk_written; + uint64_t data_start; uint32_t data_offset; + size_t data_size; uint8_t data[512]; uint8_t vendor_data[512]; =20 @@ -1064,6 +1066,28 @@ static sd_rsp_type_t sd_cmd_unimplemented(SDState *s= d, SDRequest req) return sd_illegal; } =20 +__attribute__((unused)) +static sd_rsp_type_t sd_cmd_to_sendingdata(SDState *sd, SDRequest req, + uint64_t start, + const void *data, size_t size) +{ + if (sd->state !=3D sd_transfer_state) { + sd_invalid_state_for_cmd(sd, req); + } + + sd->state =3D sd_sendingdata_state; + sd->data_start =3D start; + sd->data_offset =3D 0; + if (data) { + assert(size); + memcpy(sd->data, data, size); + } + if (size) { + sd->data_size =3D size; + } + return sd_r1; +} + /* CMD0 */ static sd_rsp_type_t sd_cmd_GO_IDLE_STATE(SDState *sd, SDRequest req) { @@ -1898,6 +1922,20 @@ send_response: return rsplen; } =20 +__attribute__((unused)) +/* Return true when buffer consumed */ +static bool sd_generic_read_byte(SDState *sd, uint8_t *value) +{ + *value =3D sd->data[sd->data_offset]; + + if (++sd->data_offset >=3D sd->data_size) { + sd->state =3D sd_transfer_state; + return true; + } + + return false; +} + void sd_write_byte(SDState *sd, uint8_t value) { int i; --=20 2.41.0