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/*
* TOD (Time Of Day) clock
*
* Copyright 2018 Red Hat, Inc.
* Author(s): David Hildenbrand <david@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef HW_S390_TOD_H
#define HW_S390_TOD_H
#include "hw/qdev-core.h"
#include "target/s390x/s390-tod.h"
#include "qom/object.h"
typedef struct S390TOD {
uint8_t high;
uint64_t low;
} S390TOD;
#define TYPE_S390_TOD "s390-tod"
typedef struct S390TODClass S390TODClass;
typedef struct S390TODState S390TODState;
#define S390_TOD(obj) OBJECT_CHECK(S390TODState, (obj), TYPE_S390_TOD)
#define S390_TOD_CLASS(oc) OBJECT_CLASS_CHECK(S390TODClass, (oc), \
TYPE_S390_TOD)
#define S390_TOD_GET_CLASS(obj) OBJECT_GET_CLASS(S390TODClass, (obj), \
TYPE_S390_TOD)
#define TYPE_KVM_S390_TOD TYPE_S390_TOD "-kvm"
#define TYPE_QEMU_S390_TOD TYPE_S390_TOD "-qemu"
struct S390TODState {
/* private */
DeviceState parent_obj;
/*
* Used by TCG to remember the time base. Used by KVM to backup the TOD
* while the TOD is stopped.
*/
S390TOD base;
/* Used by KVM to remember if the TOD is stopped and base is valid. */
bool stopped;
};
struct S390TODClass {
/* private */
DeviceClass parent_class;
void (*parent_realize)(DeviceState *dev, Error **errp);
/* public */
void (*get)(const S390TODState *td, S390TOD *tod, Error **errp);
void (*set)(S390TODState *td, const S390TOD *tod, Error **errp);
};
void s390_init_tod(void);
S390TODState *s390_get_todstate(void);
#endif
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