From patchwork Wed Oct 23 08:58:27 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: 13846764 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 1300AD2E029 for ; Wed, 23 Oct 2024 09:03:16 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t3XDX-0000TO-35; Wed, 23 Oct 2024 04:59:47 -0400 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 1t3XDV-0000OE-0s for qemu-devel@nongnu.org; Wed, 23 Oct 2024 04:59:45 -0400 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 1t3XDT-0000Lr-Es for qemu-devel@nongnu.org; Wed, 23 Oct 2024 04:59:44 -0400 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=GU4QjM+2048QbLKA96q1WvPb15JSkUQ7o03Nxy+uq+A=; b=0g+3883WDXBgMbjTT9dTS7jijw VJE3OkrafUAWyiYBPiHbzQ7OH0xTRyciI2citarwR1Y0QnxRCk6RTFa2BdPY6iHPuy479vWFzgg1B 60I9DSy0W/Ff4wOdSh4Va46jGS1vqsQWgu/nHA0kLlD6TBLSXW+s9JIIXqNfx5z1q7gNy4uu18h2n qB8n0rj2cXp2HLvvnlQye6huo1bKQoLXTK27ZIM6Nyo+ulAybix3gdmmGh8VrJ3IA9CCk5a6+M+VB Xf04HOYNwo1kBxnLE+Ap7bX0c1q1l9eSBarzipoegzolnIHkFd4ldBBWtqSHq/VkAHt0/NIbxIKEW qU4KxMQvvIL6CxWiyRltf9fs+sUwc0s55a5Hk1bWmyjxp99qLx6E/18yEPCfQoRpylSsXjj1b4Xlh 2lt5fOfVPCAe3PmcD2MYefwWODzyfSoHiSWtnoO/ORzIU7OMvuZq7AFERRB6B40AfN71J51E7/iDm iHNAXVGQbK05tn+jVQIW7GxEysKdB4qPnFrfufgylxET7eO2QpbRmSZZElm4HRRw9qdE8FpZ1Fy4k IQNQYVzQcXx54iYr9kwnypyZ7gochLzRzt0fpbx6qBlmiuFPQzs0rmTJdk8zNXvAFBBpHGJo8dznE zd1fW9wKYO1Uqa+Kf1iV9w/s1ikF8D6dMjb8IbXd0=; 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 1t3XD9-0008EL-4n; Wed, 23 Oct 2024 09:59:27 +0100 From: Mark Cave-Ayland To: huth@tuxfamily.org, qemu-devel@nongnu.org Date: Wed, 23 Oct 2024 09:58:27 +0100 Message-Id: <20241023085852.1061031-12-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241023085852.1061031-1-mark.cave-ayland@ilande.co.uk> References: <20241023085852.1061031-1-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 11/36] next-cube: move floppy disk MMIO to separate memory region in next-pc 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 The dummy floppy disk device is part of the next-pc device, and not related to the NeXTCube SCRs. Signed-off-by: Mark Cave-Ayland --- hw/m68k/next-cube.c | 61 ++++++++++++++++++++++++++++++++++++--------- 1 file changed, 49 insertions(+), 12 deletions(-) diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c index 22da777006..f1a50ec737 100644 --- a/hw/m68k/next-cube.c +++ b/hw/m68k/next-cube.c @@ -108,6 +108,7 @@ struct NeXTPC { M68kCPU *cpu; + MemoryRegion floppy_mem; MemoryRegion mmiomem; MemoryRegion scrmem; @@ -368,11 +369,6 @@ static uint64_t next_scr_readfn(void *opaque, hwaddr addr, unsigned size) uint64_t val; switch (addr) { - case 0x14108: - DPRINTF("FD read @ %x\n", (unsigned int)addr); - val = 0x40 | 0x04 | 0x2 | 0x1; - break; - /* * These 4 registers are the hardware timer, not sure which register * is the latch instead of data, but no problems so far. @@ -402,13 +398,6 @@ static void next_scr_writefn(void *opaque, hwaddr addr, uint64_t val, unsigned size) { switch (addr) { - case 0x14108: - DPRINTF("FDCSR Write: %"PRIx64 "\n", val); - if (val == 0x0) { - /* qemu_irq_raise(s->fd_irq[0]); */ - } - break; - /* Hardware timer latch - not implemented yet */ case 0x1a000: default: @@ -948,6 +937,47 @@ static const TypeInfo next_scsi_info = { .class_init = next_scsi_class_init, }; +static void next_floppy_write(void *opaque, hwaddr addr, uint64_t val, + unsigned size) +{ + switch (addr) { + case 0: + DPRINTF("FDCSR Write: %"PRIx64 "\n", val); + if (val == 0x0) { + /* qemu_irq_raise(s->fd_irq[0]); */ + } + break; + + default: + g_assert_not_reached(); + } +} + +static uint64_t next_floppy_read(void *opaque, hwaddr addr, unsigned size) +{ + uint64_t val; + + switch (addr) { + case 0: + DPRINTF("FD read @ %x\n", (unsigned int)addr); + val = 0x40 | 0x04 | 0x2 | 0x1; + break; + + default: + g_assert_not_reached(); + } + + return val; +} + +static const MemoryRegionOps next_floppy_ops = { + .read = next_floppy_read, + .write = next_floppy_write, + .valid.min_access_size = 1, + .valid.max_access_size = 4, + .endianness = DEVICE_BIG_ENDIAN, +}; + static void next_escc_init(DeviceState *pcdev) { DeviceState *dev; @@ -1006,6 +1036,10 @@ static void next_pc_realize(DeviceState *dev, Error **errp) s->scsi_reset = qdev_get_gpio_in(d, 0); s->scsi_dma = qdev_get_gpio_in(d, 1); + + /* Floppy */ + memory_region_add_subregion(&s->scrmem, 0x14108, + &s->floppy_mem); } static void next_pc_init(Object *obj) @@ -1024,6 +1058,9 @@ static void next_pc_init(Object *obj) sysbus_init_mmio(sbd, &s->scrmem); object_initialize_child(obj, "next-scsi", &s->next_scsi, TYPE_NEXT_SCSI); + + memory_region_init_io(&s->floppy_mem, OBJECT(s), &next_floppy_ops, s, + "next.floppy", 4); } /*