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gptimer: add API to get captured count value

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This commit is contained in:
morris
2022-07-13 13:17:32 +08:00
parent e06c230a1d
commit 995b89fbb6
15 changed files with 171 additions and 86 deletions
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21
components/hal/esp32c3/include/hal/timer_ll.h
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@@ -115,6 +115,22 @@ static inline void timer_ll_enable_counter(timg_dev_t *hw, uint32_t timer_num, b
hw->hw_timer[timer_num].config.tx_en = en;
}
/**
* @brief Trigger software capture event
*
* @param hw Timer Group register base address
* @param timer_num Timer number in the group
*/
__attribute__((always_inline))
static inline void timer_ll_trigger_soft_capture(timg_dev_t *hw, uint32_t timer_num)
{
hw->hw_timer[timer_num].update.tx_update = 1;
// Timer register is in a different clock domain from Timer hardware logic
// We need to wait for the update to take effect before fetching the count value
while (hw->hw_timer[timer_num].update.tx_update) {
}
}
/**
* @brief Get counter value
*
@@ -126,11 +142,6 @@ static inline void timer_ll_enable_counter(timg_dev_t *hw, uint32_t timer_num, b
__attribute__((always_inline))
static inline uint64_t timer_ll_get_counter_value(timg_dev_t *hw, uint32_t timer_num)
{
hw->hw_timer[timer_num].update.tx_update = 1;
// Timer register is in a different clock domain from Timer hardware logic
// We need to wait for the update to take effect before fetching the count value
while (hw->hw_timer[timer_num].update.tx_update) {
}
return ((uint64_t) hw->hw_timer[timer_num].hi.tx_hi << 32) | (hw->hw_timer[timer_num].lo.tx_lo);
}