#define WDT_WRITE_KEY 0x50D83AA1
void int_wdt_init() {
- TIMERG1.wdt_wprotect=WDT_WRITE_KEY;
- TIMERG1.wdt_config0.sys_reset_length=7; //3.2uS
- TIMERG1.wdt_config0.cpu_reset_length=7; //3.2uS
- TIMERG1.wdt_config0.level_int_en=1;
- TIMERG1.wdt_config0.stg0=1; //1st stage timeout: interrupt
- TIMERG1.wdt_config0.stg1=3; //2nd stage timeout: reset system
- TIMERG1.wdt_config1.clk_prescale=80*500; //Prescaler: wdt counts in ticks of 0.5mS
- //The timer configs initially are set to 5 seconds, to make sure the CPU can start up. The tick hook sets
- //it to their actual value.
- TIMERG1.wdt_config2=10000;
- TIMERG1.wdt_config3=10000;
- TIMERG1.wdt_config0.en=1;
- TIMERG1.wdt_feed=1;
- TIMERG1.wdt_wprotect=0;
- TIMERG1.int_clr_timers.wdt=1;
- TIMERG1.int_ena.wdt=1;
- ESP_INTR_DISABLE(WDT_INT_NUM);
- intr_matrix_set(xPortGetCoreID(), ETS_TG1_WDT_LEVEL_INTR_SOURCE, WDT_INT_NUM);
- //We do not register a handler for the interrupt because it is interrupt level 4 which
- //is not servicable from C. Instead, xtensa_vectors.S has a call to the panic handler for
- //this interrupt.
- ESP_INTR_ENABLE(WDT_INT_NUM);
+ TIMERG1.wdt_wprotect=WDT_WRITE_KEY;
+ TIMERG1.wdt_config0.sys_reset_length=7; //3.2uS
+ TIMERG1.wdt_config0.cpu_reset_length=7; //3.2uS
+ TIMERG1.wdt_config0.level_int_en=1;
+ TIMERG1.wdt_config0.stg0=1; //1st stage timeout: interrupt
+ TIMERG1.wdt_config0.stg1=3; //2nd stage timeout: reset system
+ TIMERG1.wdt_config1.clk_prescale=80*500; //Prescaler: wdt counts in ticks of 0.5mS
+ //The timer configs initially are set to 5 seconds, to make sure the CPU can start up. The tick hook sets
+ //it to their actual value.
+ TIMERG1.wdt_config2=10000;
+ TIMERG1.wdt_config3=10000;
+ TIMERG1.wdt_config0.en=1;
+ TIMERG1.wdt_feed=1;
+ TIMERG1.wdt_wprotect=0;
+ TIMERG1.int_clr_timers.wdt=1;
+ TIMERG1.int_ena.wdt=1;
+ ESP_INTR_DISABLE(WDT_INT_NUM);
+ intr_matrix_set(xPortGetCoreID(), ETS_TG1_WDT_LEVEL_INTR_SOURCE, WDT_INT_NUM);
+ //We do not register a handler for the interrupt because it is interrupt level 4 which
+ //is not servicable from C. Instead, xtensa_vectors.S has a call to the panic handler for
+ //this interrupt.
+ ESP_INTR_ENABLE(WDT_INT_NUM);
}
bool int_wdt_app_cpu_ticked=false;
void vApplicationTickHook(void) {
- if (xPortGetCoreID()!=0) {
- int_wdt_app_cpu_ticked=true;
- } else {
- //Only feed wdt if app cpu also ticked.
- if (int_wdt_app_cpu_ticked) {
- TIMERG1.wdt_wprotect=WDT_WRITE_KEY;
- TIMERG1.wdt_config2=CONFIG_INT_WDT_TIMEOUT_MS*2; //Set timeout before interrupt
- TIMERG1.wdt_config3=CONFIG_INT_WDT_TIMEOUT_MS*4; //Set timeout before reset
- TIMERG1.wdt_feed=1;
- TIMERG1.wdt_wprotect=0;
- int_wdt_app_cpu_ticked=false;
- }
- }
+ if (xPortGetCoreID()!=0) {
+ int_wdt_app_cpu_ticked=true;
+ } else {
+ //Only feed wdt if app cpu also ticked.
+ if (int_wdt_app_cpu_ticked) {
+ TIMERG1.wdt_wprotect=WDT_WRITE_KEY;
+ TIMERG1.wdt_config2=CONFIG_INT_WDT_TIMEOUT_MS*2; //Set timeout before interrupt
+ TIMERG1.wdt_config3=CONFIG_INT_WDT_TIMEOUT_MS*4; //Set timeout before reset
+ TIMERG1.wdt_feed=1;
+ TIMERG1.wdt_wprotect=0;
+ int_wdt_app_cpu_ticked=false;
+ }
+ }
}
#else
void vApplicationTickHook(void) {
- if (xPortGetCoreID()!=0) return;
- TIMERG1.wdt_wprotect=WDT_WRITE_KEY;
- TIMERG1.wdt_config2=CONFIG_INT_WDT_TIMEOUT_MS*2; //Set timeout before interrupt
- TIMERG1.wdt_config3=CONFIG_INT_WDT_TIMEOUT_MS*4; //Set timeout before reset
- TIMERG1.wdt_feed=1;
- TIMERG1.wdt_wprotect=0;
+ if (xPortGetCoreID()!=0) return;
+ TIMERG1.wdt_wprotect=WDT_WRITE_KEY;
+ TIMERG1.wdt_config2=CONFIG_INT_WDT_TIMEOUT_MS*2; //Set timeout before interrupt
+ TIMERG1.wdt_config3=CONFIG_INT_WDT_TIMEOUT_MS*4; //Set timeout before reset
+ TIMERG1.wdt_feed=1;
+ TIMERG1.wdt_wprotect=0;
}
#endif
typedef struct wdt_task_t wdt_task_t;
struct wdt_task_t {
- TaskHandle_t task_handle;
- bool fed_watchdog;
- wdt_task_t *next;
+ TaskHandle_t task_handle;
+ bool fed_watchdog;
+ wdt_task_t *next;
};
static wdt_task_t *wdt_task_list=NULL;
#define WDT_WRITE_KEY 0x50D83AA1
static void IRAM_ATTR task_wdt_isr(void *arg) {
- wdt_task_t *wdttask;
- const char *cpu;
- //Feed the watchdog so we do not reset
- TIMERG0.wdt_wprotect=WDT_WRITE_KEY;
- TIMERG0.wdt_feed=1;
- TIMERG0.wdt_wprotect=0;
- //Ack interrupt
- TIMERG0.int_clr_timers.wdt=1;
- //Watchdog got triggered because at least one task did not report in.
- ets_printf("Task watchdog got triggered. The following tasks did not feed the watchdog in time:\n");
- for (wdttask=wdt_task_list; wdttask!=NULL; wdttask=wdttask->next) {
- if (!wdttask->fed_watchdog) {
- cpu=xTaskGetAffinity(wdttask->task_handle)==0?"CPU 0":"CPU 1";
- if (xTaskGetAffinity(wdttask->task_handle)==tskNO_AFFINITY) cpu="CPU 0/1";
- printf(" - %s (%s)\n", pcTaskGetTaskName(wdttask->task_handle), cpu);
- }
- }
- ets_printf("Tasks currently running:\n");
- for (int x=0; x<portNUM_PROCESSORS; x++) {
- ets_printf("CPU %d: %s\n", x, pcTaskGetTaskName(xTaskGetCurrentTaskHandleForCPU(x)));
- }
+ wdt_task_t *wdttask;
+ const char *cpu;
+ //Feed the watchdog so we do not reset
+ TIMERG0.wdt_wprotect=WDT_WRITE_KEY;
+ TIMERG0.wdt_feed=1;
+ TIMERG0.wdt_wprotect=0;
+ //Ack interrupt
+ TIMERG0.int_clr_timers.wdt=1;
+ //Watchdog got triggered because at least one task did not report in.
+ ets_printf("Task watchdog got triggered. The following tasks did not feed the watchdog in time:\n");
+ for (wdttask=wdt_task_list; wdttask!=NULL; wdttask=wdttask->next) {
+ if (!wdttask->fed_watchdog) {
+ cpu=xTaskGetAffinity(wdttask->task_handle)==0?"CPU 0":"CPU 1";
+ if (xTaskGetAffinity(wdttask->task_handle)==tskNO_AFFINITY) cpu="CPU 0/1";
+ printf(" - %s (%s)\n", pcTaskGetTaskName(wdttask->task_handle), cpu);
+ }
+ }
+ ets_printf("Tasks currently running:\n");
+ for (int x=0; x<portNUM_PROCESSORS; x++) {
+ ets_printf("CPU %d: %s\n", x, pcTaskGetTaskName(xTaskGetCurrentTaskHandleForCPU(x)));
+ }
#if CONFIG_TASK_WDT_PANIC
- ets_printf("Aborting.\n");
- abort();
+ ets_printf("Aborting.\n");
+ abort();
#endif
}
void task_wdt_feed() {
- wdt_task_t *wdttask=wdt_task_list;
- bool found_task=false, do_feed_wdt=true;
- TaskHandle_t handle=xTaskGetCurrentTaskHandle();
- //Walk the linked list of wdt tasks to find this one, as well as see if we need to feed
- //the real watchdog timer.
- for (wdttask=wdt_task_list; wdttask!=NULL; wdttask=wdttask->next) {
- //See if we are at the current task.
- if (wdttask->task_handle == handle) {
- wdttask->fed_watchdog=true;
- found_task=true;
- }
- //If even one task in the list doesn't have the do_feed_wdt var set, we do not feed the watchdog.
- if (!wdttask->fed_watchdog) do_feed_wdt=false;
- }
-
- if (!found_task) {
- //This is the first time the task calls the task_wdt_feed function. Create a new entry for it in
- //the linked list.
- wdt_task_t *newtask=malloc(sizeof(wdt_task_t));
- memset(newtask, 0, sizeof(wdt_task_t));
- newtask->task_handle=handle;
- newtask->fed_watchdog=true;
- if (wdt_task_list == NULL) {
- wdt_task_list=newtask;
- } else {
- for (wdttask=wdt_task_list; wdttask->next!=NULL; wdttask=wdttask->next) ;
- wdttask->next=newtask;
- }
- }
- if (do_feed_wdt) {
- //All tasks have checked in; time to feed the hw watchdog.
- TIMERG0.wdt_wprotect=WDT_WRITE_KEY;
- TIMERG0.wdt_feed=1;
- TIMERG0.wdt_wprotect=0;
- //Reset fed_watchdog status
- for (wdttask=wdt_task_list; wdttask->next!=NULL; wdttask=wdttask->next) wdttask->fed_watchdog=false;
- }
+ wdt_task_t *wdttask=wdt_task_list;
+ bool found_task=false, do_feed_wdt=true;
+ TaskHandle_t handle=xTaskGetCurrentTaskHandle();
+ //Walk the linked list of wdt tasks to find this one, as well as see if we need to feed
+ //the real watchdog timer.
+ for (wdttask=wdt_task_list; wdttask!=NULL; wdttask=wdttask->next) {
+ //See if we are at the current task.
+ if (wdttask->task_handle == handle) {
+ wdttask->fed_watchdog=true;
+ found_task=true;
+ }
+ //If even one task in the list doesn't have the do_feed_wdt var set, we do not feed the watchdog.
+ if (!wdttask->fed_watchdog) do_feed_wdt=false;
+ }
+
+ if (!found_task) {
+ //This is the first time the task calls the task_wdt_feed function. Create a new entry for it in
+ //the linked list.
+ wdt_task_t *newtask=malloc(sizeof(wdt_task_t));
+ memset(newtask, 0, sizeof(wdt_task_t));
+ newtask->task_handle=handle;
+ newtask->fed_watchdog=true;
+ if (wdt_task_list == NULL) {
+ wdt_task_list=newtask;
+ } else {
+ for (wdttask=wdt_task_list; wdttask->next!=NULL; wdttask=wdttask->next) ;
+ wdttask->next=newtask;
+ }
+ }
+ if (do_feed_wdt) {
+ //All tasks have checked in; time to feed the hw watchdog.
+ TIMERG0.wdt_wprotect=WDT_WRITE_KEY;
+ TIMERG0.wdt_feed=1;
+ TIMERG0.wdt_wprotect=0;
+ //Reset fed_watchdog status
+ for (wdttask=wdt_task_list; wdttask->next!=NULL; wdttask=wdttask->next) wdttask->fed_watchdog=false;
+ }
}
void task_wdt_delete() {
- TaskHandle_t handle=xTaskGetCurrentTaskHandle();
- wdt_task_t *wdttask=wdt_task_list;
- //Wdt task list can't be empty
- if (!wdt_task_list) {
- ESP_LOGE(TAG, "task_wdt_delete: No tasks in list?");
- return;
- }
- if (handle==wdt_task_list) {
- //Current task is first on list.
- wdt_task_list=wdt_task_list->next;
- free(wdttask);
- } else {
- //Find current task in list
- while (wdttask->next!=NULL && wdttask->next->task_handle!=handle) wdttask=wdttask->next;
- if (!wdttask->next) {
- ESP_LOGE(TAG, "task_wdt_delete: Task never called task_wdt_feed!");
- return;
- }
- wdt_task_t *freeme=wdttask->next;
- wdttask->next=wdttask->next->next;
- free(freeme);
- }
+ TaskHandle_t handle=xTaskGetCurrentTaskHandle();
+ wdt_task_t *wdttask=wdt_task_list;
+ //Wdt task list can't be empty
+ if (!wdt_task_list) {
+ ESP_LOGE(TAG, "task_wdt_delete: No tasks in list?");
+ return;
+ }
+ if (handle==wdt_task_list) {
+ //Current task is first on list.
+ wdt_task_list=wdt_task_list->next;
+ free(wdttask);
+ } else {
+ //Find current task in list
+ while (wdttask->next!=NULL && wdttask->next->task_handle!=handle) wdttask=wdttask->next;
+ if (!wdttask->next) {
+ ESP_LOGE(TAG, "task_wdt_delete: Task never called task_wdt_feed!");
+ return;
+ }
+ wdt_task_t *freeme=wdttask->next;
+ wdttask->next=wdttask->next->next;
+ free(freeme);
+ }
}
void task_wdt_init() {
- TIMERG0.wdt_wprotect=WDT_WRITE_KEY;
- TIMERG0.wdt_config0.sys_reset_length=7; //3.2uS
- TIMERG0.wdt_config0.cpu_reset_length=7; //3.2uS
- TIMERG0.wdt_config0.level_int_en=1;
- TIMERG0.wdt_config0.stg0=1; //1st stage timeout: interrupt
- TIMERG0.wdt_config0.stg1=3; //2nd stage timeout: reset system
- TIMERG0.wdt_config1.clk_prescale=80*500; //Prescaler: wdt counts in ticks of 0.5mS
- TIMERG0.wdt_config2=CONFIG_TASK_WDT_TIMEOUT_S*2000; //Set timeout before interrupt
- TIMERG0.wdt_config3=CONFIG_TASK_WDT_TIMEOUT_S*4000; //Set timeout before reset
- TIMERG0.wdt_config0.en=1;
- TIMERG0.wdt_feed=1;
- TIMERG0.wdt_wprotect=0;
- ESP_INTR_DISABLE(ETS_T0_WDT_INUM);
- intr_matrix_set(xPortGetCoreID(), ETS_TG0_WDT_LEVEL_INTR_SOURCE, ETS_T0_WDT_INUM);
- xt_set_interrupt_handler(ETS_T0_WDT_INUM, task_wdt_isr, NULL);
- TIMERG0.int_clr_timers.wdt=1;
- TIMERG0.int_ena.wdt=1;
- ESP_INTR_ENABLE(ETS_T0_WDT_INUM);
+ TIMERG0.wdt_wprotect=WDT_WRITE_KEY;
+ TIMERG0.wdt_config0.sys_reset_length=7; //3.2uS
+ TIMERG0.wdt_config0.cpu_reset_length=7; //3.2uS
+ TIMERG0.wdt_config0.level_int_en=1;
+ TIMERG0.wdt_config0.stg0=1; //1st stage timeout: interrupt
+ TIMERG0.wdt_config0.stg1=3; //2nd stage timeout: reset system
+ TIMERG0.wdt_config1.clk_prescale=80*500; //Prescaler: wdt counts in ticks of 0.5mS
+ TIMERG0.wdt_config2=CONFIG_TASK_WDT_TIMEOUT_S*2000; //Set timeout before interrupt
+ TIMERG0.wdt_config3=CONFIG_TASK_WDT_TIMEOUT_S*4000; //Set timeout before reset
+ TIMERG0.wdt_config0.en=1;
+ TIMERG0.wdt_feed=1;
+ TIMERG0.wdt_wprotect=0;
+ ESP_INTR_DISABLE(ETS_T0_WDT_INUM);
+ intr_matrix_set(xPortGetCoreID(), ETS_TG0_WDT_LEVEL_INTR_SOURCE, ETS_T0_WDT_INUM);
+ xt_set_interrupt_handler(ETS_T0_WDT_INUM, task_wdt_isr, NULL);
+ TIMERG0.int_clr_timers.wdt=1;
+ TIMERG0.int_ena.wdt=1;
+ ESP_INTR_ENABLE(ETS_T0_WDT_INUM);
}
#if CONFIG_TASK_WDT_CHECK_IDLE_TASK
void vApplicationIdleHook(void) {
#if !CONFIG_TASK_WDT_CHECK_IDLE_TASK_CPU1
- if (xPortGetCoreID()!=0) return;
+ if (xPortGetCoreID()!=0) return;
#endif
- task_wdt_feed();
+ task_wdt_feed();
}
#endif