149d4d9b6SPaolo Bonzini /* 249d4d9b6SPaolo Bonzini * General purpose implementation of a simple periodic countdown timer. 349d4d9b6SPaolo Bonzini * 449d4d9b6SPaolo Bonzini * Copyright (c) 2007 CodeSourcery. 549d4d9b6SPaolo Bonzini * 649d4d9b6SPaolo Bonzini * This code is licensed under the GNU LGPL. 749d4d9b6SPaolo Bonzini */ 849d4d9b6SPaolo Bonzini #ifndef PTIMER_H 949d4d9b6SPaolo Bonzini #define PTIMER_H 1049d4d9b6SPaolo Bonzini 1149d4d9b6SPaolo Bonzini #include "qemu-common.h" 121de7afc9SPaolo Bonzini #include "qemu/timer.h" 13caf71f86SPaolo Bonzini #include "migration/vmstate.h" 1449d4d9b6SPaolo Bonzini 1549d4d9b6SPaolo Bonzini /* ptimer.c */ 1649d4d9b6SPaolo Bonzini typedef struct ptimer_state ptimer_state; 1749d4d9b6SPaolo Bonzini typedef void (*ptimer_cb)(void *opaque); 1849d4d9b6SPaolo Bonzini 1949d4d9b6SPaolo Bonzini ptimer_state *ptimer_init(QEMUBH *bh); 2049d4d9b6SPaolo Bonzini void ptimer_set_period(ptimer_state *s, int64_t period); 2149d4d9b6SPaolo Bonzini void ptimer_set_freq(ptimer_state *s, uint32_t freq); 2249d4d9b6SPaolo Bonzini void ptimer_set_limit(ptimer_state *s, uint64_t limit, int reload); 2349d4d9b6SPaolo Bonzini uint64_t ptimer_get_count(ptimer_state *s); 2449d4d9b6SPaolo Bonzini void ptimer_set_count(ptimer_state *s, uint64_t count); 2549d4d9b6SPaolo Bonzini void ptimer_run(ptimer_state *s, int oneshot); 2649d4d9b6SPaolo Bonzini void ptimer_stop(ptimer_state *s); 2749d4d9b6SPaolo Bonzini 28701a8f76SPaolo Bonzini extern const VMStateDescription vmstate_ptimer; 29701a8f76SPaolo Bonzini 30701a8f76SPaolo Bonzini #define VMSTATE_PTIMER(_field, _state) { \ 31701a8f76SPaolo Bonzini .name = (stringify(_field)), \ 32701a8f76SPaolo Bonzini .version_id = (1), \ 33701a8f76SPaolo Bonzini .vmsd = &vmstate_ptimer, \ 34701a8f76SPaolo Bonzini .size = sizeof(ptimer_state *), \ 35701a8f76SPaolo Bonzini .flags = VMS_STRUCT|VMS_POINTER, \ 36701a8f76SPaolo Bonzini .offset = vmstate_offset_pointer(_state, _field, ptimer_state), \ 37701a8f76SPaolo Bonzini } 38701a8f76SPaolo Bonzini 39*a1f05e79SPeter Maydell #define VMSTATE_PTIMER_ARRAY(_f, _s, _n) \ 40*a1f05e79SPeter Maydell VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, 0, \ 41*a1f05e79SPeter Maydell vmstate_ptimer, ptimer_state) 42*a1f05e79SPeter Maydell 4349d4d9b6SPaolo Bonzini #endif 44