hw: Add support for LSI SAS1068 (mptsas) device
[qemu.git] / include / hw / ptimer.h
1 /*
2 * General purpose implementation of a simple periodic countdown timer.
3 *
4 * Copyright (c) 2007 CodeSourcery.
5 *
6 * This code is licensed under the GNU LGPL.
7 */
8 #ifndef PTIMER_H
9 #define PTIMER_H
10
11 #include "qemu-common.h"
12 #include "qemu/timer.h"
13 #include "migration/vmstate.h"
14
15 /* ptimer.c */
16 typedef struct ptimer_state ptimer_state;
17 typedef void (*ptimer_cb)(void *opaque);
18
19 ptimer_state *ptimer_init(QEMUBH *bh);
20 void ptimer_set_period(ptimer_state *s, int64_t period);
21 void ptimer_set_freq(ptimer_state *s, uint32_t freq);
22 void ptimer_set_limit(ptimer_state *s, uint64_t limit, int reload);
23 uint64_t ptimer_get_count(ptimer_state *s);
24 void ptimer_set_count(ptimer_state *s, uint64_t count);
25 void ptimer_run(ptimer_state *s, int oneshot);
26 void ptimer_stop(ptimer_state *s);
27
28 extern const VMStateDescription vmstate_ptimer;
29
30 #define VMSTATE_PTIMER(_field, _state) \
31 VMSTATE_STRUCT_POINTER_V(_field, _state, 1, vmstate_ptimer, ptimer_state)
32
33 #define VMSTATE_PTIMER_ARRAY(_f, _s, _n) \
34 VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, 0, \
35 vmstate_ptimer, ptimer_state)
36
37 #endif