acf695eca6
and remove the old i386/pc dependency Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/*
|
|
* QEMU 8253/8254 interval timer emulation
|
|
*
|
|
* Copyright (c) 2003-2004 Fabrice Bellard
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef HW_I8254_H
|
|
#define HW_I8254_H
|
|
|
|
#include "hw/hw.h"
|
|
#include "hw/qdev.h"
|
|
#include "hw/isa/isa.h"
|
|
|
|
#define PIT_FREQ 1193182
|
|
|
|
typedef struct PITChannelInfo {
|
|
int gate;
|
|
int mode;
|
|
int initial_count;
|
|
int out;
|
|
} PITChannelInfo;
|
|
|
|
#define TYPE_PIT_COMMON "pit-common"
|
|
#define PIT_COMMON(obj) \
|
|
OBJECT_CHECK(PITCommonState, (obj), TYPE_PIT_COMMON)
|
|
#define PIT_COMMON_CLASS(klass) \
|
|
OBJECT_CLASS_CHECK(PITCommonClass, (klass), TYPE_PIT_COMMON)
|
|
#define PIT_COMMON_GET_CLASS(obj) \
|
|
OBJECT_GET_CLASS(PITCommonClass, (obj), TYPE_PIT_COMMON)
|
|
|
|
#define TYPE_I8254 "isa-pit"
|
|
#define TYPE_KVM_I8254 "kvm-pit"
|
|
|
|
static inline ISADevice *i8254_pit_init(ISABus *bus, int base, int isa_irq,
|
|
qemu_irq alt_irq)
|
|
{
|
|
DeviceState *dev;
|
|
ISADevice *d;
|
|
|
|
d = isa_create(bus, TYPE_I8254);
|
|
dev = DEVICE(d);
|
|
qdev_prop_set_uint32(dev, "iobase", base);
|
|
qdev_init_nofail(dev);
|
|
qdev_connect_gpio_out(dev, 0,
|
|
isa_irq >= 0 ? isa_get_irq(d, isa_irq) : alt_irq);
|
|
|
|
return d;
|
|
}
|
|
|
|
static inline ISADevice *kvm_pit_init(ISABus *bus, int base)
|
|
{
|
|
DeviceState *dev;
|
|
ISADevice *d;
|
|
|
|
d = isa_create(bus, TYPE_KVM_I8254);
|
|
dev = DEVICE(d);
|
|
qdev_prop_set_uint32(dev, "iobase", base);
|
|
qdev_init_nofail(dev);
|
|
|
|
return d;
|
|
}
|
|
|
|
void pit_set_gate(ISADevice *dev, int channel, int val);
|
|
void pit_get_channel_info(ISADevice *dev, int channel, PITChannelInfo *info);
|
|
|
|
#endif /* HW_I8254_H */
|