/** ****************************************************************************** * @addtogroup OpenPilotModules OpenPilot Modules * @{ * @addtogroup WavPlayerModule WavPlayer Module * @brief Process WavPlayer information * @{ * * @file wavplayer.c * @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010. * @brief WavPlayer module * @see The GNU Public License (GPL) Version 3 * *****************************************************************************/ /* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ // **************** #include "openpilot.h" // **************** // Private functions static void WavPlayerTask(void *parameters); // **************** // Private constants #define STACK_SIZE_BYTES 1600 #define TASK_PRIORITY (tskIDLE_PRIORITY + 4) // **************** // Private variables static xTaskHandle WavPlayerTaskHandle; static uint32_t timeOfLastCommandMs; static uint32_t timeOfLastUpdateMs; // **************** int32_t WavPlayerStart(void) { // Start WavPlayer task xTaskCreate(WavPlayerTask, (signed char *) "WavPlayer", STACK_SIZE_BYTES / 4, NULL, TASK_PRIORITY, &WavPlayerTaskHandle); return 0; } /** * Initialise the WavPlayer module * \return -1 if initialisation failed * \return 0 on success */ int32_t WavPlayerInitialize(void) { return 0; } MODULE_INITCALL( WavPlayerInitialize, WavPlayerStart) // **************** /** * Main WavPlayer task. It does not return. */ static void WavPlayerTask(void *parameters) { portTickType xDelay = 100 / portTICK_RATE_MS; portTickType lastSysTime; // Loop forever lastSysTime = xTaskGetTickCount(); uint32_t timeNowMs = xTaskGetTickCount() * portTICK_RATE_MS; timeOfLastUpdateMs = timeNowMs; timeOfLastCommandMs = timeNowMs; #if defined(PIOS_INCLUDE_WAVE) WavePlayer_Start(); #endif // Loop forever while (1) { vTaskDelayUntil(&lastSysTime, 50 / portTICK_RATE_MS); timeNowMs = xTaskGetTickCount() * portTICK_RATE_MS; } } // **************** /** * @} * @} */