1/*
2 * Copyright 2017, Data61
3 * Commonwealth Scientific and Industrial Research Organisation (CSIRO)
4 * ABN 41 687 119 230.
5 *
6 * This software may be distributed and modified according to the terms of
7 * the BSD 2-Clause license. Note that NO WARRANTY is provided.
8 * See "LICENSE_BSD2.txt" for details.
9 *
10 * @TAG(DATA61_BSD)
11 */
12
13#pragma once
14
15#include <stdint.h>
16#include <stdbool.h>
17
18/* Properties of a single timer device */
19typedef struct {
20    /* Timers are up counters or down counters.
21     *
22     * Up counters count up from 0, down counters count down from
23     * a set value (set when a timeout is set up).
24     *
25     */
26    uint32_t upcounter: 1;
27
28    /* True if this timer supports setting timeouts at all */
29    uint32_t timeouts: 1;
30
31    /* what sort of timeouts does this timer support? */
32    uint32_t absolute_timeouts: 1;
33    uint32_t relative_timeouts: 1;
34    uint32_t periodic_timeouts: 1;
35
36    /* when does this timer roll over? This will be 0 for down-counters (max valueue 64) */
37    uint32_t bit_width: 7;
38
39    /* Number of unique irqs this timer issues */
40    uint32_t irqs;
41} timer_properties_t;
42