4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
23 * this file and link it with other files to produce an executable, this
24 * file does not by itself cause the resulting executable to be covered by
25 * the GNU General Public License. This exception does not however
26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
35 * \author Bernardo Innocenti <bernie@develer.com>
37 * \brief Watchdog interface
43 #include <cfg/cfg_wdt.h>
44 #include <cfg/compiler.h> // INLINE
45 #include <cfg/cfg_arch.h>
47 /* Configury sanity check */
48 #if !defined(CONFIG_WATCHDOG) || (CONFIG_WATCHDOG != 0 && CONFIG_WATCHDOG != 1)
49 #error CONFIG_WATCHDOG must be defined to either 0 or 1
53 #include <cpu/detect.h>
58 #include <qapplication.h>
60 #include <QtGui/QApplication>
63 #include <sys/select.h>
66 #include <cfg/macros.h> // BV()
67 #if CPU_AVR_ATMEGA1281 // Name is different in atmega1281
70 #elif defined(ARCH_FREERTOS) && (ARCH & ARCH_FREERTOS)
71 #include <task.h> /* taskYIELD() */
75 #endif /* CONFIG_WATCHDOG */
78 * Reset the watchdog timer.
80 INLINE void wdt_reset(void)
84 // Let Qt handle events
86 qApp->processEvents();
88 static struct timeval tv = { 0, 0 };
89 select(0, NULL, NULL, NULL, &tv);
90 #elif defined(ARCH_FREERTOS) && (ARCH & ARCH_FREERTOS)
93 __asm__ __volatile__ ("wdr");
97 #endif /* CONFIG_WATCHDOG */
101 * Set watchdog timer timeout.
103 * \param timeout 0: 16.3ms, 7: 2.1s
105 INLINE void wdt_init(uint8_t timeout)
109 // Create a dummy QApplication object
113 new QApplication(argc, (char **)NULL);
117 (void)timeout; // NOP
118 #elif defined(ARCH_FREERTOS) && (ARCH & ARCH_FREERTOS)
121 WDTCR |= BV(WDCE) | BV(WDE);
128 #endif /* CONFIG_WATCHDOG */
131 INLINE void wdt_start(void)
138 #elif defined(ARCH_FREERTOS) && (ARCH & ARCH_FREERTOS)
145 #endif /* CONFIG_WATCHDOG */
148 INLINE void wdt_stop(void)
155 #elif defined(ARCH_FREERTOS) && (ARCH & ARCH_FREERTOS)
158 WDTCR |= BV(WDCE) | BV(WDE);
163 #endif /* CONFIG_WATCHDOG */
166 #endif /* DRV_WDT_H */