qemu/hw/ide/isa.c
Markus Armbruster 5c17ca2505 Clean up test for qdev_init() failure
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>
2009-10-07 08:54:55 -05:00

117 lines
3.5 KiB
C

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