mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-23 11:39:53 +00:00
c30f26223d
There is no "version 2" of the "Lesser" General Public License. It is either "GPL version 2.0" or "Lesser GPL version 2.1". This patch replaces all occurrences of "Lesser GPL version 2" with "Lesser GPL version 2.1" in comment section. Signed-off-by: Chetan Pant <chetan4windows@gmail.com> Message-Id: <20201023121933.19227-1-chetan4windows@gmail.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
152 lines
4.0 KiB
C
152 lines
4.0 KiB
C
/*
|
|
* QEMU Intel i82378 emulation (PCI to ISA bridge)
|
|
*
|
|
* Copyright (c) 2010-2011 Hervé Poussineau
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "hw/pci/pci.h"
|
|
#include "hw/irq.h"
|
|
#include "hw/intc/i8259.h"
|
|
#include "hw/timer/i8254.h"
|
|
#include "migration/vmstate.h"
|
|
#include "hw/audio/pcspk.h"
|
|
#include "qom/object.h"
|
|
|
|
#define TYPE_I82378 "i82378"
|
|
OBJECT_DECLARE_SIMPLE_TYPE(I82378State, I82378)
|
|
|
|
struct I82378State {
|
|
PCIDevice parent_obj;
|
|
|
|
qemu_irq out[2];
|
|
qemu_irq *i8259;
|
|
MemoryRegion io;
|
|
};
|
|
|
|
static const VMStateDescription vmstate_i82378 = {
|
|
.name = "pci-i82378",
|
|
.version_id = 0,
|
|
.minimum_version_id = 0,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_PCI_DEVICE(parent_obj, I82378State),
|
|
VMSTATE_END_OF_LIST()
|
|
},
|
|
};
|
|
|
|
static void i82378_request_out0_irq(void *opaque, int irq, int level)
|
|
{
|
|
I82378State *s = opaque;
|
|
qemu_set_irq(s->out[0], level);
|
|
}
|
|
|
|
static void i82378_request_pic_irq(void *opaque, int irq, int level)
|
|
{
|
|
DeviceState *dev = opaque;
|
|
I82378State *s = I82378(dev);
|
|
|
|
qemu_set_irq(s->i8259[irq], level);
|
|
}
|
|
|
|
static void i82378_realize(PCIDevice *pci, Error **errp)
|
|
{
|
|
DeviceState *dev = DEVICE(pci);
|
|
I82378State *s = I82378(dev);
|
|
uint8_t *pci_conf;
|
|
ISABus *isabus;
|
|
ISADevice *pit;
|
|
|
|
pci_conf = pci->config;
|
|
pci_set_word(pci_conf + PCI_COMMAND,
|
|
PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
|
|
pci_set_word(pci_conf + PCI_STATUS,
|
|
PCI_STATUS_DEVSEL_MEDIUM);
|
|
|
|
pci_config_set_interrupt_pin(pci_conf, 1); /* interrupt pin 0 */
|
|
|
|
isabus = isa_bus_new(dev, get_system_memory(),
|
|
pci_address_space_io(pci), errp);
|
|
if (!isabus) {
|
|
return;
|
|
}
|
|
|
|
/* This device has:
|
|
2 82C59 (irq)
|
|
1 82C54 (pit)
|
|
2 82C37 (dma)
|
|
NMI
|
|
Utility Bus Support Registers
|
|
|
|
All devices accept byte access only, except timer
|
|
*/
|
|
|
|
/* 2 82C59 (irq) */
|
|
s->i8259 = i8259_init(isabus,
|
|
qemu_allocate_irq(i82378_request_out0_irq, s, 0));
|
|
isa_bus_irqs(isabus, s->i8259);
|
|
|
|
/* 1 82C54 (pit) */
|
|
pit = i8254_pit_init(isabus, 0x40, 0, NULL);
|
|
|
|
/* speaker */
|
|
pcspk_init(isa_new(TYPE_PC_SPEAKER), isabus, pit);
|
|
|
|
/* 2 82C37 (dma) */
|
|
isa_create_simple(isabus, "i82374");
|
|
}
|
|
|
|
static void i82378_init(Object *obj)
|
|
{
|
|
DeviceState *dev = DEVICE(obj);
|
|
I82378State *s = I82378(obj);
|
|
|
|
qdev_init_gpio_out(dev, s->out, 1);
|
|
qdev_init_gpio_in(dev, i82378_request_pic_irq, 16);
|
|
}
|
|
|
|
static void i82378_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
k->realize = i82378_realize;
|
|
k->vendor_id = PCI_VENDOR_ID_INTEL;
|
|
k->device_id = PCI_DEVICE_ID_INTEL_82378;
|
|
k->revision = 0x03;
|
|
k->class_id = PCI_CLASS_BRIDGE_ISA;
|
|
dc->vmsd = &vmstate_i82378;
|
|
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
|
|
}
|
|
|
|
static const TypeInfo i82378_type_info = {
|
|
.name = TYPE_I82378,
|
|
.parent = TYPE_PCI_DEVICE,
|
|
.instance_size = sizeof(I82378State),
|
|
.instance_init = i82378_init,
|
|
.class_init = i82378_class_init,
|
|
.interfaces = (InterfaceInfo[]) {
|
|
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
|
|
{ },
|
|
},
|
|
};
|
|
|
|
static void i82378_register_types(void)
|
|
{
|
|
type_register_static(&i82378_type_info);
|
|
}
|
|
|
|
type_init(i82378_register_types)
|