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Add Atomthreads RTOS source files.
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Kelvin Lawson
252
tests/timer3.c
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252
tests/timer3.c
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/*
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* Copyright (c) 2010, Kelvin Lawson. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. No personal names or organizations' names associated with the
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* Atomthreads project may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE ATOMTHREADS PROJECT AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "atom.h"
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#include "atomsem.h"
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#include "atomtimer.h"
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#include "atomtests.h"
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/* Test OS objects */
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static ATOM_SEM sem1;
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/* Forward declarations */
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static void testCallback (POINTER cb_data);
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/**
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* \b test_start
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*
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* Start timer test.
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*
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* This test exercises the atomTimerRegister() API. It tests that bad
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* parameters are trapped, and that timer callbacks occur at the
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* correct time.
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*
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* @retval Number of failures
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*/
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uint32_t test_start (void)
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{
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int failures;
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ATOM_TIMER timer_cb;
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uint32_t expected_time;
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/* Default to zero failures */
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failures = 0;
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/* Create a semaphore for receiving test notifications */
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if (atomSemCreate (&sem1, 0) != ATOM_OK)
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{
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ATOMLOG (_STR("SemCreate\n"));
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failures++;
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}
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/* Test that bad parameters are trapped */
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/* NULL parameter check */
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if (atomTimerRegister(NULL) != ATOM_ERR_PARAM)
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{
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ATOMLOG (_STR("Param1\n"));
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failures++;
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}
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/* NULL callback function */
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timer_cb.cb_ticks = 1;
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timer_cb.cb_func = NULL;
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if (atomTimerRegister(&timer_cb) != ATOM_ERR_PARAM)
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{
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ATOMLOG (_STR("Param2\n"));
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failures++;
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}
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/* Zero ticks */
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timer_cb.cb_ticks = 0;
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timer_cb.cb_func = testCallback;
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if (atomTimerRegister(&timer_cb) != ATOM_ERR_PARAM)
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{
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ATOMLOG (_STR("Param3\n"));
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failures++;
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}
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/* Request a callback in 1 tick */
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/*
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* Sleep for one tick first to ensure we start near a
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* tick boundary. This should ensure that the timer
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* tick does not advance while we are setting up the
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* timer but before registering the timer.
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*/
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atomTimerDelay(1);
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/* Request a callback in one tick time */
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timer_cb.cb_ticks = 1;
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/* We pass our testCallback() the expected end time */
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timer_cb.cb_func = testCallback;
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expected_time = atomTimeGet() + timer_cb.cb_ticks;
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timer_cb.cb_data = &expected_time;
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/* Register the timer callback */
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if (atomTimerRegister (&timer_cb) != ATOM_OK)
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{
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ATOMLOG (_STR("TimerReg1\n"));
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failures++;
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}
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/* Wait up to 5 ticks for sem1 to be posted indicating success */
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else if (atomSemGet (&sem1, 5) != ATOM_OK)
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{
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ATOMLOG (_STR("Tick1\n"));
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failures++;
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}
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/* Request a callback in 2 ticks */
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/*
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* Sleep for one tick first to ensure we start near a
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* tick boundary. This should ensure that the timer
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* tick does not advance while we are setting up the
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* timer but before registering the timer.
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*/
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atomTimerDelay(1);
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/* Request a callback in 2 ticks time */
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timer_cb.cb_ticks = 2;
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/* We pass our testCallback() the expected end time */
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timer_cb.cb_func = testCallback;
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expected_time = atomTimeGet() + timer_cb.cb_ticks;
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timer_cb.cb_data = &expected_time;
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/* Register the timer callback */
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if (atomTimerRegister (&timer_cb) != ATOM_OK)
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{
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ATOMLOG (_STR("TimerReg2\n"));
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failures++;
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}
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/* Wait up to 5 ticks for sem1 to be posted indicating success */
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else if (atomSemGet (&sem1, 5) != ATOM_OK)
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{
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ATOMLOG (_STR("Tick2\n"));
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failures++;
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}
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/* Request a callback in 500 ticks */
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/*
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* Sleep for one tick first to ensure we start near a
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* tick boundary. This should ensure that the timer
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* tick does not advance while we are setting up the
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* timer but before registering the timer.
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*/
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atomTimerDelay(1);
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/* Request a callback in 500 ticks time */
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timer_cb.cb_ticks = 500;
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/* We pass our testCallback() the expected end time */
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timer_cb.cb_func = testCallback;
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expected_time = atomTimeGet() + timer_cb.cb_ticks;
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timer_cb.cb_data = &expected_time;
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/* Register the timer callback */
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if (atomTimerRegister (&timer_cb) != ATOM_OK)
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{
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ATOMLOG (_STR("TimerReg500\n"));
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failures++;
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}
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/* Wait up to 600 ticks for sem1 to be posted indicating success */
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else if (atomSemGet (&sem1, 600) != ATOM_OK)
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{
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ATOMLOG (_STR("Tick500\n"));
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failures++;
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}
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/* Delete the test semaphore */
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if (atomSemDelete (&sem1) != ATOM_OK)
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{
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ATOMLOG (_STR("Delete\n"));
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failures++;
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}
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/* Log final status */
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if (failures == 0)
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{
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ATOMLOG (_STR("Pass\n"));
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}
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else
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{
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ATOMLOG (_STR("Fail(%d)\n"), failures);
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}
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/* Quit */
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return failures;
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}
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/**
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* \b testCallback
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*
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* Check the time at which this timer callback occurs matches
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* the time we expected. Post sem1 if correct.
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*
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* @param[in] cb_data Not used
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*/
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static void testCallback (POINTER cb_data)
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{
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uint32_t expected_end_time;
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/* Pull out the expected end time */
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expected_end_time = *(uint32_t *)cb_data;
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/*
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* Check the callback time (now) matches the time
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* we expected the callback.
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*/
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if (atomTimeGet() == expected_end_time)
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{
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/* Called back when we expected, post sem1 to notify success */
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atomSemPut(&sem1);
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}
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else
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{
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/*
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* Not called at expected time, don't post sem1 and the test
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* thread will time out, signifying an error.
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*/
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}
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}
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