int hal_watchdog_init(uint32_t expire_msecs)
{
#ifndef WATCHDOG_STUB
wdog_config_t config;
NVIC_SetVector(WDOG_EWM_IRQn, (uint32_t) nxp_wdt_irq_handler);
WDOG_GetDefaultConfig(&config);
config.timeoutValue = (expire_msecs * 32768ULL) / 1000;
config.enableUpdate = true;
WDOG_Init(wdog_base, &config);
#endif
return (0);
}
static int mcux_wdog_install_timeout(struct device *dev,
const struct wdt_timeout_cfg *cfg)
{
const struct mcux_wdog_config *config = dev->config->config_info;
struct mcux_wdog_data *data = dev->driver_data;
struct device *clock_dev;
u32_t clock_freq;
if (data->timeout_valid) {
LOG_ERR("No more timeouts can be installed");
return -ENOMEM;
}
clock_dev = device_get_binding(config->clock_name);
if (clock_dev == NULL) {
return -EINVAL;
}
if (clock_control_get_rate(clock_dev, config->clock_subsys,
&clock_freq)) {
return -EINVAL;
}
WDOG_GetDefaultConfig(&data->wdog_config);
data->wdog_config.timeoutValue = clock_freq * cfg->window.max / 1000;
if (cfg->window.min) {
data->wdog_config.enableWindowMode = true;
data->wdog_config.windowValue =
clock_freq * cfg->window.min / 1000;
} else {
data->wdog_config.enableWindowMode = false;
data->wdog_config.windowValue = 0;
}
if ((data->wdog_config.timeoutValue < MIN_TIMEOUT) ||
(data->wdog_config.timeoutValue < data->wdog_config.windowValue)) {
LOG_ERR("Invalid timeout");
return -EINVAL;
}
data->wdog_config.clockSource = kWDOG_LpoClockSource;
data->wdog_config.enableInterrupt = cfg->callback != NULL;
data->callback = cfg->callback;
data->timeout_valid = true;
return 0;
}