mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-12-27 18:25:05 +00:00
cdcaf6ed8a
This provides us a way to inject interrupts during a test. If a test has interrupt_generator() defined, it will run in a separate thread. The generator can then trigger interrupts when it decides to. The current running task is suspended while emulator is executing ISR. Also fixes a bug that tasks run without scheduler notifying them during emulator start-up. BUG=chrome-os-partner:19235 TEST=Repeatedly run all tests. BRANCH=None Change-Id: I0f921c47c0f848a9626da6272d9040e2b7c5ac86 Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/55671
91 lines
1.7 KiB
C
91 lines
1.7 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
/* Timer module */
|
|
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
|
|
#include "task.h"
|
|
#include "test_util.h"
|
|
#include "timer.h"
|
|
#include "util.h"
|
|
|
|
/*
|
|
* For test that need to test for longer than 10 seconds, adjust
|
|
* its time scale in test/build.mk by specifying
|
|
* <test_name>-scale=<new scale>.
|
|
*/
|
|
#ifndef TEST_TIME_SCALE
|
|
#define TEST_TIME_SCALE 1
|
|
#endif
|
|
|
|
static timestamp_t boot_time;
|
|
static int time_set;
|
|
|
|
void usleep(unsigned us)
|
|
{
|
|
ASSERT(!in_interrupt_context() &&
|
|
task_get_current() != TASK_ID_INT_GEN);
|
|
task_wait_event(us);
|
|
}
|
|
|
|
timestamp_t _get_time(void)
|
|
{
|
|
struct timespec ts;
|
|
timestamp_t ret;
|
|
clock_gettime(CLOCK_MONOTONIC, &ts);
|
|
ret.val = (1000000000 * (uint64_t)ts.tv_sec + ts.tv_nsec) *
|
|
TEST_TIME_SCALE / 1000;
|
|
return ret;
|
|
}
|
|
|
|
timestamp_t get_time(void)
|
|
{
|
|
timestamp_t ret = _get_time();
|
|
ret.val -= boot_time.val;
|
|
return ret;
|
|
}
|
|
|
|
void force_time(timestamp_t ts)
|
|
{
|
|
timestamp_t now = _get_time();
|
|
boot_time.val = now.val - ts.val;
|
|
time_set = 1;
|
|
}
|
|
|
|
void udelay(unsigned us)
|
|
{
|
|
timestamp_t deadline;
|
|
|
|
if (!in_interrupt_context() && task_get_current() == TASK_ID_INT_GEN) {
|
|
interrupt_generator_udelay(us);
|
|
return;
|
|
}
|
|
|
|
deadline.val = get_time().val + us;
|
|
while (get_time().val < deadline.val)
|
|
;
|
|
}
|
|
|
|
int timestamp_expired(timestamp_t deadline, const timestamp_t *now)
|
|
{
|
|
timestamp_t now_val;
|
|
|
|
if (!now) {
|
|
now_val = get_time();
|
|
now = &now_val;
|
|
}
|
|
|
|
return ((int64_t)(now->val - deadline.val) >= 0);
|
|
}
|
|
|
|
void timer_init(void)
|
|
{
|
|
if (!time_set)
|
|
boot_time = _get_time();
|
|
}
|