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[176.184.4.239]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3675a1108b0sm1313092f8f.114.2024.06.28.00.05.19 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 28 Jun 2024 00:05:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1719558320; x=1720163120; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=dnn8g/1r/IDbgXO0nM+fG6kuhQufIGWzDGBB4WRk/v4=; b=PsvxjtiPrNH0Onp7y7vWtIG6aDN/0h4oyHnMTVPNEnuOwOqBspjX8LnQN/TrjD3rQt aWfvEXo1MnB0zEt5KyjNCOMz8nmC5aRKHCE8C54x/enAvWYGmOWAz5afZYborj0CN5Pj 9W6mAZV5Vwb9eumVPgely/VmQqxshbOU3GEMXyJBiGDpcAcnT06svSAvXuTXEBNIjeQz kdVofZ6YD4WJsBPEM0IDSTEw+wyw9N9YpYmJF4d92yQqPfeYVyMXGrPmYeJRjQEYDyhV G6g48mEVVRb7FWp0D/S332VzBAilVOp/5o+5AK0n7JRgIa2+AJsLNW4nksl9Hz4K4DUA mhfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719558320; x=1720163120; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=dnn8g/1r/IDbgXO0nM+fG6kuhQufIGWzDGBB4WRk/v4=; b=ckVRDOEBheUyzlpyXg7ZZo6Akqr0KpKeGMJjUggFLvzH8NnaBQC6rTo0/D5Riuteb5 AVZ9fpxZqrJQC8AUH323D/0HW2OxnXKH+ZpOfb4QYHr3cppFyYjhr4M9mtmZpnSvr5Wr FQ428WmB4/fhkSPptHLd1J1BGoxsRQwodq4WynAQG0juhdjuXcwjrOTQsNQe+8A+ZnVx F0IVwGDueW6769/f6pNDHr+znjmpZEanMcYyRmkwCGd57pRKL2vwsj6sRCogJS5yrCAA +tLGI1dfvWG4FGAoxpeCaq3++7+Ox3P254jAd6FVZJRoPvUUkvXJ72bGZqNirTAVqa6Z FmfQ== X-Gm-Message-State: AOJu0YybLAmFFPXJjTg5LilXBQHahWt7N9vckNrjJ2JcvtJm75sK+a8d duTEBKZZnSszKiO7T798rTmSFcqwgM6FgbbXWynNDzAHQcV71Y/rbVfLLMv8aWTGux0jHrFi+KX sbx8= X-Google-Smtp-Source: AGHT+IGZb0VvpY2I07c6luZbJ1Vdeh+Lcly1MGCUMGW31qnfMw2/bUKsM+JdYROp3640943K3afZkA== X-Received: by 2002:a2e:97c7:0:b0:2eb:e787:47ea with SMTP id 38308e7fff4ca-2ec5b333198mr90628471fa.12.1719558320484; Fri, 28 Jun 2024 00:05:20 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org, =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PATCH v42 29/98] hw/sd/sdcard: Introduce sd_cmd_to_receivingdata / sd_generic_write_byte Date: Fri, 28 Jun 2024 09:01:05 +0200 Message-ID: <20240628070216.92609-30-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240628070216.92609-1-philmd@linaro.org> References: <20240628070216.92609-1-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::22f; envelope-from=philmd@linaro.org; helo=mail-lj1-x22f.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1719558576000100001 All commands switching from TRANSFER state to (receiving)DATA do the same: receive stream of data from the DAT lines. Instead of duplicating the same code many times, introduce 2 helpers: - sd_cmd_to_receivingdata() on the I/O line setup the data to be received on the data[] buffer, - sd_generic_write_byte() on the DAT lines to push the data. Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: C=C3=A9dric Le Goater --- hw/sd/sd.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index cd308e9a89..690a3f275e 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -1100,6 +1100,22 @@ static sd_rsp_type_t sd_cmd_unimplemented(SDState *s= d, SDRequest req) return sd_illegal; } =20 +/* Configure fields for following sd_generic_write_byte() calls */ +__attribute__((unused)) +static sd_rsp_type_t sd_cmd_to_receivingdata(SDState *sd, SDRequest req, + uint64_t start, size_t size) +{ + if (sd->state !=3D sd_transfer_state) { + return sd_invalid_state_for_cmd(sd, req); + } + sd->state =3D sd_receivingdata_state; + sd->data_start =3D start; + sd->data_offset =3D 0; + /* sd->data[] used as receive buffer */ + sd->data_size =3D size ?: sizeof(sd->data); + return sd_r1; +} + /* Configure fields for following sd_generic_read_byte() calls */ static sd_rsp_type_t sd_cmd_to_sendingdata(SDState *sd, SDRequest req, uint64_t start, @@ -1953,6 +1969,19 @@ send_response: return rsplen; } =20 +/* Return true if buffer is consumed. Configured by sd_cmd_to_receivingdat= a() */ +__attribute__((unused)) +static bool sd_generic_write_byte(SDState *sd, uint8_t value) +{ + sd->data[sd->data_offset] =3D value; + + if (++sd->data_offset >=3D sd->data_size) { + sd->state =3D sd_transfer_state; + return true; + } + return false; +} + /* Return true when buffer is consumed. Configured by sd_cmd_to_sendingdat= a() */ static bool sd_generic_read_byte(SDState *sd, uint8_t *value) { --=20 2.41.0