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Add Atomthreads RTOS source files.
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Kelvin Lawson
183
tests/timer4.c
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183
tests/timer4.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 "atomtimer.h"
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#include "atomtests.h"
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/* Test OS objects */
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static ATOM_TIMER timer_cb[4];
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/* Global test data */
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static uint32_t cb_ticks[4];
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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, particularly the
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* linked lists used internally for managing an ordered list of timers.
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*
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* Several timers are registered out of order (in terms of the callback
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* time) and we check that the callbacks are called at the expected
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* times.
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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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int i;
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/* Default to zero failures */
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failures = 0;
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/*
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* Fill out four timer request structures. Callbacks are
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* requested starting in one second, with the others
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* at 1 tick intervals thereafter.
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*/
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for (i = 0; i < 4; i++)
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{
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/*
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* testCallback() is passed the expected
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* callback time via cb_data.
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*/
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cb_ticks[i] = SYSTEM_TICKS_PER_SEC + i;
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timer_cb[i].cb_ticks = cb_ticks[i];
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timer_cb[i].cb_func = testCallback;
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timer_cb[i].cb_data = &cb_ticks[i];
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}
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/* Register the timers in a different order */
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if (atomTimerRegister (&timer_cb[1]) != 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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else if (atomTimerRegister (&timer_cb[3]) != ATOM_OK)
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{
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ATOMLOG (_STR("TimerReg3\n"));
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failures++;
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}
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else if (atomTimerRegister (&timer_cb[2]) != 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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else if (atomTimerRegister (&timer_cb[0]) != ATOM_OK)
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{
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ATOMLOG (_STR("TimerReg0\n"));
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failures++;
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}
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else
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{
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/* Successfully registered timers */
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/* Wait two seconds for callbacks to complete */
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if (atomTimerDelay(2 * SYSTEM_TICKS_PER_SEC) != ATOM_OK)
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{
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ATOMLOG (_STR("Wait\n"));
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failures++;
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}
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else
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{
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/*
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* The callbacks should have cleared down cb_ticks[x]
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* to zero if they were called at the expected
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* system time.
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*/
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for (i = 0; i < 4; i++)
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{
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/* Check the callback has zeroed the area */
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if (cb_ticks[i] != 0)
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{
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ATOMLOG (_STR("Clear%d\n"), i);
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failures++;
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}
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}
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}
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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. Clear down the expected time location
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* 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, clear the passed location */
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*(uint32_t *)cb_data = 0;
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}
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else
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{
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/* Not called at expected time, don't clear the location */
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}
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}
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