*
* -->
*
- * \version $Id$
*
* \author Bernie Innocenti <bernie@codewiz.org>
*
- * \brief Watchdog interface
+ * \brief Watchdog module, supplies a simple API to manage wdt on supported target.
+ *
+ * $WIZ$ module_name = "wdt"
+ * $WIZ$ module_configuration = "bertos/cfg/cfg_wdt.h"
+ * $WIZ$ module_supports = "avr"
*/
#ifndef DRV_WDT_H
#define DRV_WDT_H
#include "cfg/cfg_wdt.h"
-#include "cfg/cfg_arch.h"
#include <cfg/compiler.h> // INLINE
#error CONFIG_WATCHDOG must be defined to either 0 or 1
#endif
-#if OS_HOSTED || !CONFIG_WATCHDOG
+#if OS_HOSTED
#include <cpu/detect.h>
#include <cfg/os.h>
#else
#error unknown CPU
#endif
+#elif CONFIG_WATCHDOG
+ #include CPU_HEADER(wdt)
#endif /* CONFIG_WATCHDOG */
#if OS_HOSTED || !CONFIG_WATCHDOG
+
/**
* Reset the watchdog timer.
*/
INLINE void wdt_reset(void)
{
#if CONFIG_WATCHDOG
- #if OS_QT
- // Let Qt handle events
- ASSERT(qApp);
- qApp->processEvents();
- #elif OS_POSIX
+ #if OS_POSIX
static struct timeval tv = { 0, 0 };
select(0, NULL, NULL, NULL, &tv);
#endif
}
/**
- * Set watchdog timer timeout.
+ * Start the watchdog timer that fire at the select
+ * timeout.
*
- * \param timeout 0: 16.3ms, 7: 2.1s
+ * \param timeout this value is target dependant.
+ * See the target documentation for more details.
*/
- INLINE void wdt_init(uint8_t timeout)
+ INLINE void wdt_start(uint32_t timeout)
{
#if CONFIG_WATCHDOG
#if OS_QT
(void)timeout;
#elif OS_POSIX
(void)timeout; // NOP
- #else
- #error unknown CPU
#endif
#endif /* CONFIG_WATCHDOG */
- (void)timeout;
- }
-
- INLINE void wdt_start(void)
- {
-#if CONFIG_WATCHDOG
- #if OS_QT
- // NOP
- #elif OS_POSIX
- // NOP
- #else
- #error unknown CPU
- #endif
-#endif /* CONFIG_WATCHDOG */
+ (void)timeout; // NOP
}
INLINE void wdt_stop(void)
{
-#if CONFIG_WATCHDOG
+ #if CONFIG_WATCHDOG
#if OS_QT
// NOP
#elif OS_POSIX
#else
#error unknown CPU
#endif
-#endif /* CONFIG_WATCHDOG */
+ #endif /* CONFIG_WATCHDOG */
}
#endif /* OS_HOSTED || !CONFIG_WATCHDOG */