1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
/*
* QEMU MC146818 RTC emulation
*
* Copyright (c) 2003-2004 Fabrice Bellard
*
* SPDX-License-Identifier: MIT
*/
#ifndef HW_RTC_MC146818RTC_H
#define HW_RTC_MC146818RTC_H
#include "qapi/qapi-types-machine.h"
#include "qemu/queue.h"
#include "qemu/timer.h"
#include "hw/isa/isa.h"
#include "qom/object.h"
#define TYPE_MC146818_RTC "mc146818rtc"
OBJECT_DECLARE_SIMPLE_TYPE(MC146818RtcState, MC146818_RTC)
struct MC146818RtcState {
ISADevice parent_obj;
MemoryRegion io;
MemoryRegion coalesced_io;
uint8_t cmos_data[128];
uint8_t cmos_index;
uint8_t isairq;
uint16_t io_base;
int32_t base_year;
uint64_t base_rtc;
uint64_t last_update;
int64_t offset;
qemu_irq irq;
int it_shift;
/* periodic timer */
QEMUTimer *periodic_timer;
int64_t next_periodic_time;
/* update-ended timer */
QEMUTimer *update_timer;
uint64_t next_alarm_time;
uint16_t irq_reinject_on_ack_count;
uint32_t irq_coalesced;
uint32_t period;
QEMUTimer *coalesced_timer;
Notifier clock_reset_notifier;
LostTickPolicy lost_tick_policy;
Notifier suspend_notifier;
QLIST_ENTRY(MC146818RtcState) link;
};
#define RTC_ISA_IRQ 8
MC146818RtcState *mc146818_rtc_init(ISABus *bus, int base_year,
qemu_irq intercept_irq);
void mc146818rtc_set_cmos_data(MC146818RtcState *s, int addr, int val);
int mc146818rtc_get_cmos_data(MC146818RtcState *s, int addr);
void rtc_reset_reinjection(MC146818RtcState *rtc);
#endif /* HW_RTC_MC146818RTC_H */
|
