From patchwork Thu Dec 12 11:46:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Cave-Ayland X-Patchwork-Id: 13905021 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B9F33E77180 for ; Thu, 12 Dec 2024 11:48:37 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tLhg9-0002oJ-0k; Thu, 12 Dec 2024 06:48:26 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tLhg4-0002av-0T for qemu-devel@nongnu.org; Thu, 12 Dec 2024 06:48:20 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tLhg2-0007NB-3Q for qemu-devel@nongnu.org; Thu, 12 Dec 2024 06:48:19 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID; bh=wxkqZJN7WGpCU476LgMyzZW/6PQxvfUmVKO47zRCx5w=; b=GVkX0TEV2Hn7zicLeyzcjMiq/g eBBCUMXPz+pPj2GNTkt/nHjGWBKByMB1MzWjvV1nmJ3I2DwmQGoPKOlw042pzpzczRGxdKiZhnI9t fsUCqWLcw8FvNKH+rNurcywmzJWfI46fvBZK7JJr/98pNlu6glKq1+I76C2OqJyw852W9cWyesMzL wl7lSjyV1RUOlqIfqOOcUUeVRAUFGHfK+wbvftP1cYYNEDXsxfYjNaqMCN3dbqmimdh6pKasnIkcF VuOs97nzU4+SKXjRqeGoqbdbgL6q8gVnAJBOHJ14ql97GSYEjzmduNkkJvdOGv7Z8CJyRvT5ZZAgI fMz6rTF16tEw/zUUuv254XbqY1Go1OiGFIVd91DcZI8ASVW3iMLdo9T4yE98qLLbQe4yjqi4+3XPj pfUwPvuN4u+hrb8i+J0awzOxkeZY/iY/yhpziMtZaZ/6lUD1v5/w3vwxLhlDLOGgyTcWZ3o/JH+ma Jo/eLAc8Qg67zCBAa5vWXnKWBBVXjijtJa1N8wugCqgnINrsvat0/JoWM2MmL5HtRyU0vrMFzh0FH uAL0b0dqA62ZP3QHFe1y+k60HUbmUbQUVrVS478ERsaFsI/WVaA7yK/5qTevXRPD5p4XOX1/uM7dg sC68gDAjUZS/sFQu+PU895fynSkPkt39768rPyARI=; Received: from [2a02:8012:c93d:0:260e:bf57:a4e9:8142] (helo=cheesecake.fritz.box) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tLhfH-00070a-PZ; Thu, 12 Dec 2024 11:47:36 +0000 From: Mark Cave-Ayland To: huth@tuxfamily.org, qemu-devel@nongnu.org Date: Thu, 12 Dec 2024 11:46:15 +0000 Message-Id: <20241212114620.549285-30-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241212114620.549285-1-mark.cave-ayland@ilande.co.uk> References: <20241212114620.549285-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH v2 29/34] next-cube: add rtc-cmd-reset named gpio to reset the rtc state machine X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk 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, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This allows us to decouple the next-pc and next-rtc devices from each other in next_scr2_rtc_update(). Signed-off-by: Mark Cave-Ayland --- hw/m68k/next-cube.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c index 5d3ffebb93..d61deda6e0 100644 --- a/hw/m68k/next-cube.c +++ b/hw/m68k/next-cube.c @@ -108,6 +108,7 @@ struct NeXTPC { NeXTRTC rtc; qemu_irq rtc_power_irq; qemu_irq rtc_data_irq; + qemu_irq rtc_cmd_reset_irq; }; typedef struct next_dma { @@ -264,7 +265,6 @@ static void next_rtc_data_in_irq(void *opaque, int n, int level) static void next_scr2_rtc_update(NeXTPC *s) { uint8_t old_scr2, scr2_2; - NeXTRTC *rtc = &s->rtc; old_scr2 = extract32(s->old_scr2, 8, 8); scr2_2 = extract32(s->scr2, 8, 8); @@ -282,9 +282,7 @@ static void next_scr2_rtc_update(NeXTPC *s) } } else { /* else end or abort */ - rtc->phase = 0; - rtc->command = 0; - rtc->value = 0; + qemu_irq_raise(s->rtc_cmd_reset_irq); } } @@ -1015,6 +1013,17 @@ static const MemoryRegionOps next_dummy_en_ops = { .endianness = DEVICE_BIG_ENDIAN, }; +static void next_rtc_cmd_reset_irq(void *opaque, int n, int level) +{ + NeXTRTC *rtc = NEXT_RTC(opaque); + + if (level) { + rtc->phase = 0; + rtc->command = 0; + rtc->value = 0; + } +} + static void next_rtc_reset_hold(Object *obj, ResetType type) { NeXTRTC *rtc = NEXT_RTC(obj); @@ -1033,6 +1042,8 @@ static void next_rtc_init(Object *obj) "rtc-data-in", 1); qdev_init_gpio_out_named(DEVICE(obj), &rtc->data_out_irq, "rtc-data-out", 1); + qdev_init_gpio_in_named(DEVICE(obj), next_rtc_cmd_reset_irq, + "rtc-cmd-reset", 1); } static const VMStateDescription next_rtc_vmstate = { @@ -1143,6 +1154,8 @@ static void next_pc_realize(DeviceState *dev, Error **errp) qdev_connect_gpio_out_named(d, "rtc-data-out", 0, qdev_get_gpio_in_named(dev, "rtc-data-in", 0)); + qdev_connect_gpio_out_named(dev, "rtc-cmd-reset", 0, + qdev_get_gpio_in_named(d, "rtc-cmd-reset", 0)); } static void next_pc_init(Object *obj) @@ -1183,6 +1196,8 @@ static void next_pc_init(Object *obj) "rtc-data-in", 1); qdev_init_gpio_out_named(DEVICE(obj), &s->rtc_data_irq, "rtc-data-out", 1); + qdev_init_gpio_out_named(DEVICE(obj), &s->rtc_cmd_reset_irq, + "rtc-cmd-reset", 1); } /*