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[81.40.121.121]) by smtp.gmail.com with ESMTPSA id b11sm12889395wrq.32.2020.08.14.02.23.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Aug 2020 02:23:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=L7idNJovpPa5jNi2WSWeMXFjb9mKtDeVDPABH+yZP/4=; b=uIP+dyNkfSEZjBU5XargAH/VUHjSwv6A+ZPVKDkMNnZ8K/CD0u88ATnjiQHP6OmwkZ cm7TNL8ZqNiuw8tBvIi5Jy5EwNp4uRwwNp0m4Q/K0WN0hYRgZzqoqBl+PQidWyxr5Xdz ELe6eW0nm+Vf2j7CEURYjUEyH4QB8vEds+aTmqeoNDLZV78srXwhfSyX7ILjW8GqzUg2 IxLRlDXMYXxbRCIjTXyko6/QR8SKB5KhnXm+OrHagIKFGAgvvYDQJuVYhK+O3GQzHGv/ +cHcND44UMVZzYjpeNXiXdrzziTKtR4pjh87KhRZsfHsU7LOj3y7Ehz1s6/a22v4hajc cv9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=L7idNJovpPa5jNi2WSWeMXFjb9mKtDeVDPABH+yZP/4=; b=cb2h+pUIXrLzsrvcSceYbOtKkWSgsl+J0V8I4Vong2Aj4M+Jzf5YbwnQ0mHWgQkrvE kNtieVW8tqETJo6KGzZoGrmBhUCB4UJJFVF6yTpUUiwgMeppuYuPj0zgVt/5HDYPMego XwryAJLn5pFYWfeery0Lga35dBqMDX36WQBXdvtHJdmPp4UjBh+kGCYcV2R1fjdnDKRc 3+UCEFGzs6WjJ4qPZo2jHJ64wWyNvKkxSZ3irNNPRnorHafFykBpBPqM23cDPO3/I000 lHQZnAIKzDc71AytBi7IL12USv4CHUjGlZE5bk6FX612w5Z6/oDfrG/T6EBStjHOMvTA /r6g== X-Gm-Message-State: AOAM532THVW0ryvLQJmWstw1gxXMyA6d8pC37p71/53ybR3pxr4YLv8j YxUkl9HVkjqdZ+XS8QpUjAoXvvOyhm4= X-Google-Smtp-Source: ABdhPJxiVf/tLEDOOaLJsHw3v915clNa0sjwQvt37LCOhfjGfRhi1UY6zEMOND9YuLK3iik4D88GkQ== X-Received: by 2002:a5d:42c5:: with SMTP id t5mr1896854wrr.370.1597397036430; Fri, 14 Aug 2020 02:23:56 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH 6/7] hw/sd: Add sdbus_read_data() to read multiples bytes on the data line Date: Fri, 14 Aug 2020 11:23:45 +0200 Message-Id: <20200814092346.21825-7-f4bug@amsat.org> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20200814092346.21825-1-f4bug@amsat.org> References: <20200814092346.21825-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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::444; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wr1-x444.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: 0 X-Spam_score: 0.0 X-Spam_bar: / X-Spam_report: (0.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=1, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no 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: , Cc: Peter Maydell , qemu-block@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Andrew Baumann , Beniamino Galvani , Michael Walle , qemu-arm@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Add a sdbus_read_data() method to read multiple bytes on the data line of a SD bus. We might improve the tracing later, for now keep logging each byte individually. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- include/hw/sd/sd.h | 9 +++++++++ hw/sd/core.c | 15 +++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/include/hw/sd/sd.h b/include/hw/sd/sd.h index 3ae3e8939b..ac02d61a7a 100644 --- a/include/hw/sd/sd.h +++ b/include/hw/sd/sd.h @@ -184,6 +184,15 @@ uint8_t sdbus_read_byte(SDBus *sd); * Write multiple bytes of data on the data lines of a SD bus. */ void sdbus_write_data(SDBus *sdbus, const void *buf, size_t length); +/** + * Read data from a SD bus. + * @sdbus: bus + * @buf: buffer to read data into + * @length: number of bytes to read + * + * Read multiple bytes of data on the data lines of a SD bus. + */ +void sdbus_read_data(SDBus *sdbus, void *buf, size_t length); bool sdbus_data_ready(SDBus *sd); bool sdbus_get_inserted(SDBus *sd); bool sdbus_get_readonly(SDBus *sd); diff --git a/hw/sd/core.c b/hw/sd/core.c index 9c2781ebf9..957d116f1a 100644 --- a/hw/sd/core.c +++ b/hw/sd/core.c @@ -144,6 +144,21 @@ uint8_t sdbus_read_byte(SDBus *sdbus) return value; } =20 +void sdbus_read_data(SDBus *sdbus, void *buf, size_t length) +{ + SDState *card =3D get_card(sdbus); + uint8_t *data =3D buf; + + if (card) { + SDCardClass *sc =3D SD_CARD_GET_CLASS(card); + + for (size_t i =3D 0; i < length; i++) { + data[i] =3D sc->read_byte(card); + trace_sdbus_read(sdbus_name(sdbus), data[i]); + } + } +} + bool sdbus_data_ready(SDBus *sdbus) { SDState *card =3D get_card(sdbus); --=20 2.21.3