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timer_group: add LL functions for WDT

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Michael (XIAO Xufeng) 2019-07-30 17:22:51 +08:00
parent c02981a99b
commit feea477023
2 changed files with 107 additions and 0 deletions
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96
components/soc/esp32/include/hal/timer_ll.h
View file

@ -184,6 +184,102 @@ static inline void timer_ll_get_alarm_enable(timg_dev_t *hw, timer_idx_t timer_n
*alarm_en = hw->hw_timer[timer_num].config.alarm_en;
}
/* WDT operations */
/**
* Unlock/lock the WDT register in case of mis-operations.
*
* @param hw Beginning address of the peripheral registers.
* @param protect true to lock, false to unlock before operations.
*/
FORCE_INLINE_ATTR void timer_ll_wdt_set_protect(timg_dev_t* hw, bool protect)
{
hw->wdt_wprotect=(protect? 0: TIMG_WDT_WKEY_VALUE);
}
/**
* Initialize WDT.
*
* @param hw Beginning address of the peripheral registers.
*
* @note Call ``timer_ll_wdt_set_protect first``
*/
FORCE_INLINE_ATTR void timer_ll_wdt_init(timg_dev_t* hw)
{
hw->wdt_config0.sys_reset_length=7; //3.2uS
hw->wdt_config0.cpu_reset_length=7; //3.2uS
//currently only level interrupt is supported
hw->wdt_config0.level_int_en = 1;
hw->wdt_config0.edge_int_en = 0;
}
FORCE_INLINE_ATTR void timer_ll_wdt_set_tick(timg_dev_t* hw, int tick_time_us)
{
hw->wdt_config1.clk_prescale=80*tick_time_us;
}
FORCE_INLINE_ATTR void timer_ll_wdt_feed(timg_dev_t* hw)
{
hw->wdt_feed = 1;
}
FORCE_INLINE_ATTR void timer_ll_wdt_set_timeout(timg_dev_t* hw, int stage, uint32_t timeout_tick)
{
switch (stage) {
case 0:
hw->wdt_config2=timeout_tick;
break;
case 1:
hw->wdt_config3=timeout_tick;
break;
case 2:
hw->wdt_config4=timeout_tick;
break;
case 3:
hw->wdt_config5=timeout_tick;
break;
default:
abort();
}
}
_Static_assert(TIMER_WDT_OFF == TIMG_WDT_STG_SEL_OFF, "Add mapping to LL watchdog timeout behavior, since it's no longer naturally compatible with the timer_wdt_behavior_t");
_Static_assert(TIMER_WDT_INT == TIMG_WDT_STG_SEL_INT, "Add mapping to LL watchdog timeout behavior, since it's no longer naturally compatible with the timer_wdt_behavior_t");
_Static_assert(TIMER_WDT_RESET_CPU == TIMG_WDT_STG_SEL_RESET_CPU, "Add mapping to LL watchdog timeout behavior, since it's no longer naturally compatible with the timer_wdt_behavior_t");
_Static_assert(TIMER_WDT_RESET_SYSTEM == TIMG_WDT_STG_SEL_RESET_SYSTEM, "Add mapping to LL watchdog timeout behavior, since it's no longer naturally compatible with the timer_wdt_behavior_t");
FORCE_INLINE_ATTR void timer_ll_wdt_set_timeout_behavior(timg_dev_t* hw, int stage, timer_wdt_behavior_t behavior)
{
switch (stage) {
case 0:
hw->wdt_config0.stg0 = behavior;
break;
case 1:
hw->wdt_config0.stg1 = behavior;
break;
case 2:
hw->wdt_config0.stg2 = behavior;
break;
case 3:
hw->wdt_config0.stg3 = behavior;
break;
default:
abort();
}
}
FORCE_INLINE_ATTR void timer_ll_wdt_set_enable(timg_dev_t* hw, bool enable)
{
hw->wdt_config0.en = enable;
}
FORCE_INLINE_ATTR void timer_ll_wdt_flashboot_en(timg_dev_t* hw, bool enable)
{
hw->wdt_config0.flashboot_mod_en = enable;
}
#ifdef __cplusplus
}
#endif

11
components/soc/include/hal/timer_types.h
View file

@ -51,6 +51,17 @@ typedef enum {
TIMER_INTR_WDT = BIT(2), /*!< interrupt of watchdog */
} timer_intr_t;
/**
* @brief Behavior of the watchdog if a stage times out.
*/
//this is compatible with the value of esp32.
typedef enum {
TIMER_WDT_OFF = 0, ///< The stage is turned off
TIMER_WDT_INT = 1, ///< The stage will trigger an interrupt
TIMER_WDT_RESET_CPU = 2, ///< The stage will reset the CPU
TIMER_WDT_RESET_SYSTEM = 3, ///< The stage will reset the whole system
} timer_wdt_behavior_t;
#ifdef __cplusplus
}
#endif