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test-arm-mptimer.c
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/*
* QTest testcase for the ARM MPTimer
*
* Copyright (c) 2016 Dmitry Osipenko <[email protected]>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "qemu/timer.h"
#include "libqtest.h"
#define TIMER_BLOCK_SCALE(s) ((((s) & 0xff) + 1) * 10)
#define TIMER_BLOCK_STEP(scaler, steps_nb) \
clock_step(TIMER_BLOCK_SCALE(scaler) * (int64_t)(steps_nb) + 1)
#define TIMER_BASE_PHYS 0x1e000600
#define TIMER_LOAD 0x00
#define TIMER_COUNTER 0x04
#define TIMER_CONTROL 0x08
#define TIMER_INTSTAT 0x0C
#define TIMER_CONTROL_ENABLE (1 << 0)
#define TIMER_CONTROL_PERIODIC (1 << 1)
#define TIMER_CONTROL_IT_ENABLE (1 << 2)
#define TIMER_CONTROL_PRESCALER(p) (((p) & 0xff) << 8)
#define PERIODIC 1
#define ONESHOT 0
#define NOSCALE 0
static int nonscaled = NOSCALE;
static int scaled = 122;
static void timer_load(uint32_t load)
{
writel(TIMER_BASE_PHYS + TIMER_LOAD, load);
}
static void timer_start(int periodic, uint32_t scale)
{
uint32_t ctl = TIMER_CONTROL_ENABLE | TIMER_CONTROL_PRESCALER(scale);
if (periodic) {
ctl |= TIMER_CONTROL_PERIODIC;
}
writel(TIMER_BASE_PHYS + TIMER_CONTROL, ctl);
}
static void timer_stop(void)
{
writel(TIMER_BASE_PHYS + TIMER_CONTROL, 0);
}
static void timer_int_clr(void)
{
writel(TIMER_BASE_PHYS + TIMER_INTSTAT, 1);
}
static void timer_reset(void)
{
timer_stop();
timer_load(0);
timer_int_clr();
}
static uint32_t timer_get_and_clr_int_sts(void)
{
uint32_t int_sts = readl(TIMER_BASE_PHYS + TIMER_INTSTAT);
if (int_sts) {
timer_int_clr();
}
return int_sts;
}
static uint32_t timer_counter(void)
{
return readl(TIMER_BASE_PHYS + TIMER_COUNTER);
}
static void timer_set_counter(uint32_t value)
{
writel(TIMER_BASE_PHYS + TIMER_COUNTER, value);
}
static void test_timer_oneshot(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(9999999);
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 9999);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
g_assert_cmpuint(timer_counter(), ==, 9990000);
TIMER_BLOCK_STEP(scaler, 9990000);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
TIMER_BLOCK_STEP(scaler, 9990000);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_pause(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(999999999);
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 999);
g_assert_cmpuint(timer_counter(), ==, 999999000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(scaler, 9000);
g_assert_cmpuint(timer_counter(), ==, 999990000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_stop();
g_assert_cmpuint(timer_counter(), ==, 999990000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(scaler, 90000);
g_assert_cmpuint(timer_counter(), ==, 999990000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 999990000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
TIMER_BLOCK_STEP(scaler, 999990000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
g_assert_cmpuint(timer_counter(), ==, 0);
}
static void test_timer_reload(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(UINT32_MAX);
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 90000);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX - 90000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_load(UINT32_MAX);
TIMER_BLOCK_STEP(scaler, 90000);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX - 90000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_periodic(gconstpointer arg)
{
int scaler = *((int *) arg);
int repeat = 10;
timer_reset();
timer_load(100);
timer_start(PERIODIC, scaler);
while (repeat--) {
clock_step(TIMER_BLOCK_SCALE(scaler) * (101 + repeat) + 1);
g_assert_cmpuint(timer_counter(), ==, 100 - repeat);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
clock_step(TIMER_BLOCK_SCALE(scaler) * (101 - repeat) - 1);
}
}
static void test_timer_oneshot_to_periodic(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(10000);
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 1000);
g_assert_cmpuint(timer_counter(), ==, 9000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 14001);
g_assert_cmpuint(timer_counter(), ==, 5000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
}
static void test_timer_periodic_to_oneshot(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(99999999);
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 999);
g_assert_cmpuint(timer_counter(), ==, 99999000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 99999009);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
}
static void test_timer_prescaler(void)
{
timer_reset();
timer_load(9999999);
timer_start(ONESHOT, NOSCALE);
TIMER_BLOCK_STEP(NOSCALE, 9999998);
g_assert_cmpuint(timer_counter(), ==, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(NOSCALE, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
timer_reset();
timer_load(9999999);
timer_start(ONESHOT, 0xAB);
TIMER_BLOCK_STEP(0xAB, 9999998);
g_assert_cmpuint(timer_counter(), ==, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(0xAB, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
}
static void test_timer_prescaler_on_the_fly(void)
{
timer_reset();
timer_load(9999999);
timer_start(ONESHOT, NOSCALE);
TIMER_BLOCK_STEP(NOSCALE, 999);
g_assert_cmpuint(timer_counter(), ==, 9999000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_start(ONESHOT, 0xAB);
TIMER_BLOCK_STEP(0xAB, 9000);
g_assert_cmpuint(timer_counter(), ==, 9990000);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_set_oneshot_counter_to_0(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(UINT32_MAX);
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX - 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_set_counter(0);
TIMER_BLOCK_STEP(scaler, 10);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
}
static void test_timer_set_periodic_counter_to_0(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(UINT32_MAX);
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX - 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_set_counter(0);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX - (scaler ? 0 : 1));
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
timer_reset();
timer_set_counter(UINT32_MAX);
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX - 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_set_counter(0);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
}
static void test_timer_noload_oneshot(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_noload_periodic(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
}
static void test_timer_zero_load_oneshot(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
g_assert_cmpuint(timer_counter(), ==, 0);
timer_load(0);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_zero_load_periodic(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
g_assert_cmpuint(timer_counter(), ==, 0);
timer_load(0);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
}
static void test_timer_zero_load_oneshot_to_nonzero(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
timer_load(0);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
g_assert_cmpuint(timer_counter(), ==, 0);
timer_load(999);
TIMER_BLOCK_STEP(scaler, 1001);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
}
static void test_timer_zero_load_periodic_to_nonzero(gconstpointer arg)
{
int scaler = *((int *) arg);
int i;
timer_reset();
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
g_assert_cmpuint(timer_counter(), ==, 0);
timer_load(0);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
timer_load(1999999);
for (i = 1; i < 10; i++) {
TIMER_BLOCK_STEP(scaler, 2000001);
g_assert_cmpuint(timer_counter(), ==, 1999999 - i);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
}
static void test_timer_nonzero_load_oneshot_to_zero(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
g_assert_cmpuint(timer_counter(), ==, 0);
timer_load(UINT32_MAX);
timer_load(0);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
}
static void test_timer_nonzero_load_periodic_to_zero(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
timer_load(UINT32_MAX);
timer_load(0);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
}
static void test_timer_set_periodic_counter_on_the_fly(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(UINT32_MAX / 2);
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX / 2 - 100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_set_counter(UINT32_MAX);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX - 100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_enable_and_set_counter(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
timer_set_counter(UINT32_MAX);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX - 100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_set_counter_and_enable(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_set_counter(UINT32_MAX);
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX - 100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_set_counter_disabled(void)
{
timer_reset();
timer_set_counter(999999999);
TIMER_BLOCK_STEP(NOSCALE, 100);
g_assert_cmpuint(timer_counter(), ==, 999999999);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_load_disabled(void)
{
timer_reset();
timer_load(999999999);
TIMER_BLOCK_STEP(NOSCALE, 100);
g_assert_cmpuint(timer_counter(), ==, 999999999);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_oneshot_with_counter_0_on_start(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(999);
timer_set_counter(0);
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_periodic_with_counter_0_on_start(gconstpointer arg)
{
int scaler = *((int *) arg);
int i;
timer_reset();
timer_load(UINT32_MAX);
timer_set_counter(0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
g_assert_cmpuint(timer_counter(), ==, 0);
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX + (scaler ? 1 : 0) - 100);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX + (scaler ? 1 : 0) - 200);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_reset();
timer_load(1999999);
timer_set_counter(0);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
for (i = 2 - (!!scaler ? 1 : 0); i < 10; i++) {
TIMER_BLOCK_STEP(scaler, 2000001);
g_assert_cmpuint(timer_counter(), ==, 1999999 - i);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
}
static void test_periodic_counter(gconstpointer arg)
{
const int test_load = 10;
int scaler = *((int *) arg);
int test_val;
timer_reset();
timer_load(test_load);
timer_start(PERIODIC, scaler);
clock_step(1);
for (test_val = 0; test_val <= test_load; test_val++) {
clock_step(TIMER_BLOCK_SCALE(scaler) * test_load);
g_assert_cmpint(timer_counter(), ==, test_val);
}
}
static void test_timer_set_counter_periodic_with_zero_load(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_start(PERIODIC, scaler);
timer_load(0);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
timer_set_counter(999);
TIMER_BLOCK_STEP(scaler, 999);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
}
static void test_timer_set_oneshot_load_to_0(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(UINT32_MAX);
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX - 100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_load(0);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_set_periodic_load_to_0(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(UINT32_MAX);
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, UINT32_MAX - 100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_load(0);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
TIMER_BLOCK_STEP(scaler, 100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
g_assert_cmpuint(timer_counter(), ==, 0);
}
static void test_deferred_trigger(void)
{
int mode = ONESHOT;
again:
timer_reset();
timer_start(mode, 255);
clock_step(100);
g_assert_cmpuint(timer_counter(), ==, 0);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
timer_reset();
timer_load(2);
timer_start(mode, 255);
clock_step(100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
timer_reset();
timer_load(UINT32_MAX);
timer_start(mode, 255);
clock_step(100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_set_counter(0);
clock_step(100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
timer_reset();
timer_load(UINT32_MAX);
timer_start(mode, 255);
clock_step(100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_load(0);
clock_step(100);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
if (mode == ONESHOT) {
mode = PERIODIC;
goto again;
}
}
static void test_timer_zero_load_mode_switch(gconstpointer arg)
{
int scaler = *((int *) arg);
timer_reset();
timer_load(0);
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
TIMER_BLOCK_STEP(scaler, 1);
timer_start(ONESHOT, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(scaler, 1);
timer_start(PERIODIC, scaler);
TIMER_BLOCK_STEP(scaler, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, !!scaler);
}
static void test_timer_zero_load_prescaled_periodic_to_nonscaled_oneshot(void)
{
timer_reset();
timer_load(0);
timer_start(PERIODIC, 255);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(255, 1);
timer_start(ONESHOT, NOSCALE);
TIMER_BLOCK_STEP(NOSCALE, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(NOSCALE, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_zero_load_prescaled_oneshot_to_nonscaled_periodic(void)
{
timer_reset();
timer_load(0);
timer_start(ONESHOT, 255);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_start(PERIODIC, NOSCALE);
TIMER_BLOCK_STEP(NOSCALE, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_zero_load_nonscaled_oneshot_to_prescaled_periodic(void)
{
timer_reset();
timer_load(0);
timer_start(ONESHOT, NOSCALE);
TIMER_BLOCK_STEP(NOSCALE, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_start(PERIODIC, 255);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
static void test_timer_zero_load_nonscaled_periodic_to_prescaled_oneshot(void)
{
timer_reset();
timer_load(0);
timer_start(PERIODIC, NOSCALE);
TIMER_BLOCK_STEP(NOSCALE, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
timer_start(ONESHOT, 255);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 1);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
TIMER_BLOCK_STEP(255, 1);
g_assert_cmpuint(timer_counter(), ==, 0);
g_assert_cmpuint(timer_get_and_clr_int_sts(), ==, 0);
}
int main(int argc, char **argv)
{
int *scaler = &nonscaled;
int ret;
g_test_init(&argc, &argv, NULL);