5c17ca2505
Some callers test for != 0, some for < 0. Normalize to < 0. Patchworks-ID: 35171 Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
117 lines
3.5 KiB
C
117 lines
3.5 KiB
C
/*
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* QEMU IDE Emulation: ISA Bus support.
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*
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* Copyright (c) 2003 Fabrice Bellard
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* Copyright (c) 2006 Openedhand Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <hw/hw.h>
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#include <hw/pc.h>
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#include <hw/isa.h>
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#include "block.h"
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#include "block_int.h"
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#include "sysemu.h"
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#include "dma.h"
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#include <hw/ide/internal.h>
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/***********************************************************/
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/* ISA IDE definitions */
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typedef struct ISAIDEState {
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ISADevice dev;
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IDEBus bus;
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uint32_t iobase;
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uint32_t iobase2;
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uint32_t isairq;
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qemu_irq irq;
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} ISAIDEState;
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static void isa_ide_save(QEMUFile* f, void *opaque)
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{
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ISAIDEState *s = opaque;
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idebus_save(f, &s->bus);
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ide_save(f, &s->bus.ifs[0]);
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ide_save(f, &s->bus.ifs[1]);
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}
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static int isa_ide_load(QEMUFile* f, void *opaque, int version_id)
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{
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ISAIDEState *s = opaque;
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idebus_load(f, &s->bus, version_id);
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ide_load(f, &s->bus.ifs[0], version_id);
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ide_load(f, &s->bus.ifs[1], version_id);
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return 0;
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}
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static int isa_ide_initfn(ISADevice *dev)
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{
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ISAIDEState *s = DO_UPCAST(ISAIDEState, dev, dev);
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ide_bus_new(&s->bus, &s->dev.qdev);
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ide_init_ioport(&s->bus, s->iobase, s->iobase2);
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isa_init_irq(dev, &s->irq, s->isairq);
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ide_init2(&s->bus, NULL, NULL, s->irq);
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register_savevm("isa-ide", 0, 3, isa_ide_save, isa_ide_load, s);
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return 0;
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};
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int isa_ide_init(int iobase, int iobase2, int isairq,
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DriveInfo *hd0, DriveInfo *hd1)
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{
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ISADevice *dev;
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ISAIDEState *s;
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dev = isa_create("isa-ide");
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qdev_prop_set_uint32(&dev->qdev, "iobase", iobase);
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qdev_prop_set_uint32(&dev->qdev, "iobase2", iobase2);
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qdev_prop_set_uint32(&dev->qdev, "irq", isairq);
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if (qdev_init(&dev->qdev) < 0)
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return -1;
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s = DO_UPCAST(ISAIDEState, dev, dev);
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if (hd0)
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ide_create_drive(&s->bus, 0, hd0);
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if (hd1)
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ide_create_drive(&s->bus, 1, hd1);
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return 0;
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}
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static ISADeviceInfo isa_ide_info = {
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.qdev.name = "isa-ide",
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.qdev.size = sizeof(ISAIDEState),
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.init = isa_ide_initfn,
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.qdev.props = (Property[]) {
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DEFINE_PROP_HEX32("iobase", ISAIDEState, iobase, 0x1f0),
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DEFINE_PROP_HEX32("iobase2", ISAIDEState, iobase2, 0x3f6),
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DEFINE_PROP_UINT32("irq", ISAIDEState, isairq, 14),
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DEFINE_PROP_END_OF_LIST(),
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},
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};
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static void isa_ide_register_devices(void)
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{
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isa_qdev_register(&isa_ide_info);
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}
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device_init(isa_ide_register_devices)
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