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[144.168.56.201]) by smtp.gmail.com with ESMTPSA id t23sm45957591pfc.0.2020.12.31.03.31.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Dec 2020 03:31:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=tJU0pm0MWe3ZEWtQfAqZHlrsoU5n0ODHyGK3UfYTL3s=; b=qhhLaILJduc9642K8lJzijAImqg1OL890xl5YprwEkmIqYQa5QyOY7EXalHgA142tM LqGOgxYf4x7JXjxnyKoXuVgxKMOOqHYxgPySgcCgxXorCeMbGWqOmtmYdbNzCAoKmqla A1GxG+S5qFcGJ7H5pT+pcwaE4WtHc5WenvZmrnjnL+mPSMoa2h5XySiWBrMoCGIN959/ EEUiHThbLjSlIGnzO96WdLuNo3mzrhnUDDN+LXV6Z87yzrKuKSNgXrw+KLEbvSE7//u0 OviKe/1fm1N7eaKdhs7IZqdu/u0kko7Vtz7FoyycKJbTWZI6TpJEpely9ntNjibtyEv3 L1sg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=tJU0pm0MWe3ZEWtQfAqZHlrsoU5n0ODHyGK3UfYTL3s=; b=Z6LcygghzGXHtvg+yq3yc34VpfO2dteGpimDb8WsRQ5idsof4IVSGOkOZqIBHGcRHp EkQz2OnSHzfUhYW54T6ttJ/4as5dvHzkXShM+IuE4plOzctO+7RVrx4gNE+FkT+ola93 G2JHzEjE0VtFJ24qGXT2bvOMv2CiKJiShkzj/vr9EksM4Mwr/j+wewkaUvQzh27GQ1jV kQmlXAHsn6r0Wdq2trxR2Cwq97267ik7Ss0PNNvQu+Oi9+x8vdXy13aaxncsj/vHpQId 8jb4oHcFvBVPbQoFrswtdTwcY0snZ/6L9gV++YGMGv60B1wfluWjoD5rKdDZcAHA9y4X Iu2g== X-Gm-Message-State: AOAM530DFSr6+ZmfWRS6Gca5eqqn9suvu9vfLnO6XiOcEFv0yQkh+Ru7 tDSZpqFHuzWPqQPBx2ednCo= X-Google-Smtp-Source: ABdhPJzNElgZ6kl0N3oLfoXPB0p/dTApnVeq6V8D77KclUqLtWsWBB9OJhvVqfTXe7xWXhoP6KfaXA== X-Received: by 2002:a05:6a00:1389:b029:18b:2d21:2f1a with SMTP id t9-20020a056a001389b029018b2d212f1amr52328314pfg.1.1609414268638; Thu, 31 Dec 2020 03:31:08 -0800 (PST) From: Bin Meng To: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Alistair Francis , qemu-block@nongnu.org, qemu-riscv@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 14/22] hw/sd: ssi-sd: Support single block write Date: Thu, 31 Dec 2020 19:30:02 +0800 Message-Id: <20201231113010.27108-15-bmeng.cn@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201231113010.27108-1-bmeng.cn@gmail.com> References: <20201231113010.27108-1-bmeng.cn@gmail.com> MIME-Version: 1.0 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=2607:f8b0:4864:20::431; envelope-from=bmeng.cn@gmail.com; helo=mail-pf1-x431.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, FREEMAIL_FROM=0.001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bin Meng Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @gmail.com) Content-Type: text/plain; charset="utf-8" From: Bin Meng Add 2 more states for the block write operation. The SPI host needs to send a data start tocken to start the transfer, and the data block written to the card will be acknowledged by a data response tocken. Signed-off-by: Bin Meng Acked-by: Alistair Francis --- hw/sd/ssi-sd.c | 37 ++++++++++++++++++++++++++++++++++++- 1 file changed, 36 insertions(+), 1 deletion(-) diff --git a/hw/sd/ssi-sd.c b/hw/sd/ssi-sd.c index 8eb48550cf..21a96e91f0 100644 --- a/hw/sd/ssi-sd.c +++ b/hw/sd/ssi-sd.c @@ -42,6 +42,8 @@ typedef enum { SSI_SD_DATA_START, SSI_SD_DATA_READ, SSI_SD_DATA_CRC16, + SSI_SD_DATA_WRITE, + SSI_SD_SKIP_CRC16, } ssi_sd_mode; =20 struct ssi_sd_state { @@ -52,6 +54,7 @@ struct ssi_sd_state { uint8_t response[5]; uint16_t crc16; int32_t read_bytes; + int32_t write_bytes; int32_t arglen; int32_t response_pos; int32_t stopping; @@ -90,6 +93,9 @@ OBJECT_DECLARE_SIMPLE_TYPE(ssi_sd_state, SSI_SD) /* dummy value - don't care */ #define SSI_DUMMY 0xff =20 +/* data accepted */ +#define DATA_RESPONSE_ACCEPTED 0x05 + static uint32_t ssi_sd_transfer(SSIPeripheral *dev, uint32_t val) { ssi_sd_state *s =3D SSI_SD(dev); @@ -103,10 +109,17 @@ static uint32_t ssi_sd_transfer(SSIPeripheral *dev, u= int32_t val) =20 switch (s->mode) { case SSI_SD_CMD: - if (val =3D=3D SSI_DUMMY) { + switch (val) { + case SSI_DUMMY: DPRINTF("NULL command\n"); return SSI_DUMMY; + break; + case SSI_TOKEN_SINGLE: + DPRINTF("Start write block\n"); + s->mode =3D SSI_SD_DATA_WRITE; + return SSI_DUMMY; } + s->cmd =3D val & 0x3f; s->mode =3D SSI_SD_CMDARG; s->arglen =3D 0; @@ -235,6 +248,27 @@ static uint32_t ssi_sd_transfer(SSIPeripheral *dev, ui= nt32_t val) s->response_pos =3D 0; } return val; + case SSI_SD_DATA_WRITE: + sdbus_write_byte(&s->sdbus, val); + s->write_bytes++; + if (!sdbus_receive_ready(&s->sdbus) || s->write_bytes =3D=3D 512) { + DPRINTF("Data write end\n"); + s->mode =3D SSI_SD_SKIP_CRC16; + s->response_pos =3D 0; + } + return val; + case SSI_SD_SKIP_CRC16: + /* we don't verify the crc16 */ + s->response_pos++; + if (s->response_pos =3D=3D 2) { + DPRINTF("CRC16 receive end\n"); + s->mode =3D SSI_SD_RESPONSE; + s->write_bytes =3D 0; + s->arglen =3D 1; + s->response[0] =3D DATA_RESPONSE_ACCEPTED; + s->response_pos =3D 0; + } + return SSI_DUMMY; } /* Should never happen. */ return SSI_DUMMY; @@ -325,6 +359,7 @@ static void ssi_sd_reset(DeviceState *dev) memset(s->response, 0, sizeof(s->response)); s->crc16 =3D 0; s->read_bytes =3D 0; + s->write_bytes =3D 0; s->arglen =3D 0; s->response_pos =3D 0; s->stopping =3D 0; --=20 2.25.1