From patchwork Sun Mar 7 12:08:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Cave-Ayland X-Patchwork-Id: 1448667 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4DthC96syrz9sW5 for ; Sun, 7 Mar 2021 23:50:10 +1100 (AEDT) Received: from localhost ([::1]:35018 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lIsrH-0002Kz-Ve for incoming@patchwork.ozlabs.org; Sun, 07 Mar 2021 07:50:08 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:41994) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lIsGe-0003NO-VA for qemu-devel@nongnu.org; Sun, 07 Mar 2021 07:12:17 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]:43758 helo=mail.default.ilande.uk0.bigv.io) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lIsGa-0008Hx-2Y for qemu-devel@nongnu.org; Sun, 07 Mar 2021 07:12:15 -0500 Received: from host86-148-34-47.range86-148.btcentralplus.com ([86.148.34.47] helo=kentang.home) by mail.default.ilande.uk0.bigv.io with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lIsGJ-0002V5-OA; Sun, 07 Mar 2021 12:12:00 +0000 From: Mark Cave-Ayland To: qemu-devel@nongnu.org, peter.maydell@linaro.org Date: Sun, 7 Mar 2021 12:08:43 +0000 Message-Id: <20210307120850.10418-36-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210307120850.10418-1-mark.cave-ayland@ilande.co.uk> References: <20210307120850.10418-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 86.148.34.47 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PULL 35/42] esp: raise interrupt after every non-DMA byte transferred to the FIFO X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.default.ilande.uk0.bigv.io) Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.default.ilande.uk0.bigv.io X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, 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: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This matches the description in the datasheet and is required as support for non-DMA transfers is added. Signed-off-by: Mark Cave-Ayland Reviewed-by: Laurent Vivier Message-Id: <20210304221103.6369-36-mark.cave-ayland@ilande.co.uk> --- hw/scsi/esp.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index eb6681ca66..4ac299651f 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -760,6 +760,12 @@ void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val) s->ti_size++; s->ti_buf[s->ti_wptr++] = val & 0xff; } + + /* Non-DMA transfers raise an interrupt after every byte */ + if (s->rregs[ESP_CMD] == CMD_TI) { + s->rregs[ESP_RINTR] |= INTR_FC | INTR_BS; + esp_raise_irq(s); + } break; case ESP_CMD: s->rregs[saddr] = val;