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[83.35.24.93]) by smtp.gmail.com with ESMTPSA id f5sm6126634wrf.22.2021.06.17.04.54.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Jun 2021 04:54:22 -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=lMrFIFZX4VBJPQraxvDxEyJhOku4B5f9uSq095+uB5I=; b=qDhkZeLjhAHgduWQ7jztCxzxHL24Z+ru7vAtjKudTNlRv52tbfcGv7KpE6tTzsKe0l 0n53pU6lwGIJyTrIJZKK2rK5QRLytDN2ZK2cXtEPtv+5wPWCC9RT6Hdopvt5bV1LSpn3 SN988XpJEPnCrnUkk+x4y64gVp9gCq3rZUZ4nOshWl7IJ+eNuRjqYnF6SqB4OarkUjx8 l+Hc8QxZs6MWDy6c3k5ezT5N53ctGnyXwEqrRZjRDUFeNKvxmMcWvvhAT62clTcMVnvp J492lVWJOFvnkOovE3WX3i3E3AnWBCR1WSkCw/96jfTQUr7TAAKD9rUClCH9At81k56U 6r9Q== 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=lMrFIFZX4VBJPQraxvDxEyJhOku4B5f9uSq095+uB5I=; b=J5yTYh092SGJp/gnMIsas3KKLxZ0P5F4PE5Pc4wHu7TfgD4DD6GdDcCi4R67tLWjUc 7I1dJuK08mdGCUWh0fnSdvThn6z+Jr4fthvZl9o2rqo/ZqyL3GYUh6tQlhx0zXzRJaSK dYR/Sa0HK9ud8Ugw+USrEj6+LGYP5/f4fPbKF+CHFOV1NvD5OWFuh2T0v6St+JpJ6xw8 qgE0yEBOdVyEP9NbPeHPSVXyndDN25LW+aIKupleXzAJ7OLml90KN6imXkltNPabVmiI 4Le+7uGeoMtRYf/xZC8LRBlIQBrFmDxuThkp1++ygAtepkcmqMz0wqE50J+BZF1SKXkS vUxA== X-Gm-Message-State: AOAM533LbCHP3pO9974CbHcoIK77mNHCKH41AqSP/m45lvlo0t+K/fA7 G3YGfV579yD+ZOScXBVZJak06EgIafMYXw== X-Google-Smtp-Source: ABdhPJzkiMMvmGOa4BIUg/B0FMPUlbQoJs617pqwZgs3ZPMcDAUWnlahc/CMFF+7SbzWq2RQRuONkg== X-Received: by 2002:a05:600c:190f:: with SMTP id j15mr4742749wmq.4.1623930863189; Thu, 17 Jun 2021 04:54:23 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH v5 10/15] hw/misc/auxbus: Replace i2c_send_recv() by i2c_recv() & i2c_send() Date: Thu, 17 Jun 2021 13:53:29 +0200 Message-Id: <20210617115334.2761573-11-f4bug@amsat.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210617115334.2761573-1-f4bug@amsat.org> References: <20210617115334.2761573-1-f4bug@amsat.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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32c; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wm1-x32c.google.com X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, 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: Corey Minyard , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Instead of using the confuse i2c_send_recv(), replace i2c_send_recv(send =3D true) by i2c_send() and i2c_send_recv(send =3D false) by i2c_recv(). During the replacement we also change a while() statement by for(). The resulting code is easier to review. Reviewed-by: Richard Henderson Acked-by: Corey Minyard Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/misc/auxbus.c | 35 +++++++++++------------------------ 1 file changed, 11 insertions(+), 24 deletions(-) diff --git a/hw/misc/auxbus.c b/hw/misc/auxbus.c index d96219aef88..44aa9730bc9 100644 --- a/hw/misc/auxbus.c +++ b/hw/misc/auxbus.c @@ -141,12 +141,8 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint= 32_t address, } =20 ret =3D AUX_I2C_ACK; - while (len > 0) { - if (i2c_send_recv(i2c_bus, data++, false) < 0) { - ret =3D AUX_I2C_NACK; - break; - } - len--; + for (i =3D 0; i < len; i++) { + data[i] =3D i2c_recv(i2c_bus); } i2c_end_transfer(i2c_bus); break; @@ -161,12 +157,11 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uin= t32_t address, } =20 ret =3D AUX_I2C_ACK; - while (len > 0) { - if (i2c_send_recv(i2c_bus, data++, true) < 0) { + for (i =3D 0; i < len; i++) { + if (i2c_send(i2c_bus, data[i]) < 0) { ret =3D AUX_I2C_NACK; break; } - len--; } i2c_end_transfer(i2c_bus); break; @@ -200,15 +195,13 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uin= t32_t address, =20 bus->last_transaction =3D cmd; bus->last_i2c_address =3D address; - while (len > 0) { - if (i2c_send_recv(i2c_bus, data++, true) < 0) { + ret =3D AUX_I2C_ACK; + for (i =3D 0; i < len; i++) { + if (i2c_send(i2c_bus, data[i]) < 0) { i2c_end_transfer(i2c_bus); + ret =3D AUX_I2C_NACK; break; } - len--; - } - if (len =3D=3D 0) { - ret =3D AUX_I2C_ACK; } break; case READ_I2C_MOT: @@ -233,16 +226,10 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uin= t32_t address, =20 bus->last_transaction =3D cmd; bus->last_i2c_address =3D address; - while (len > 0) { - if (i2c_send_recv(i2c_bus, data++, false) < 0) { - i2c_end_transfer(i2c_bus); - break; - } - len--; - } - if (len =3D=3D 0) { - ret =3D AUX_I2C_ACK; + for (i =3D 0; i < len; i++) { + data[i] =3D i2c_recv(i2c_bus); } + ret =3D AUX_I2C_ACK; break; default: qemu_log_mask(LOG_UNIMP, "AUX cmd=3D%u not implemented\n", cmd); --=20 2.31.1