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esp_timer: initial support on esp32-s3

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This commit is contained in:
morris
2020-08-14 11:36:58 +08:00
parent 75a372a9f0
commit cc66334014
5 changed files with 53 additions and 32 deletions
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7
components/hal/esp32s3/systimer_hal.c
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@@ -17,8 +17,9 @@
#include "hal/systimer_ll.h"
#include "hal/systimer_types.h"
#include "soc/systimer_caps.h"
#include "hal/clk_gate_ll.h"
#define SYSTIMER_TICKS_PER_US (16) // Number of timer ticks per microsecond
#define SYSTIMER_TICKS_PER_US (16) // Systimer clock source is fixed to 16MHz
uint64_t systimer_hal_get_counter_value(systimer_counter_id_t counter_id)
{
@@ -56,6 +57,7 @@ void systimer_hal_set_alarm_value(systimer_alarm_id_t alarm_id, uint64_t timesta
systimer_counter_value_t alarm = { .val = timestamp * SYSTIMER_TICKS_PER_US};
systimer_ll_disable_alarm(alarm_id);
systimer_ll_set_alarm_value(alarm_id, alarm.val);
systimer_ll_apply_alarm_value(alarm_id);
systimer_ll_enable_alarm(alarm_id);
}
@@ -78,7 +80,7 @@ void systimer_hal_on_apb_freq_update(uint32_t apb_ticks_per_us)
void systimer_hal_counter_value_advance(systimer_counter_id_t counter_id, int64_t time_us)
{
systimer_counter_value_t new_count = { .val = systimer_hal_get_counter_value(counter_id) + time_us * SYSTIMER_TICKS_PER_US };
systimer_ll_load_counter_value(counter_id, new_count.val);
systimer_ll_set_counter_value(counter_id, new_count.val);
systimer_ll_apply_counter_value(counter_id);
}
@@ -89,6 +91,7 @@ void systimer_hal_enable_counter(systimer_counter_id_t counter_id)
void systimer_hal_init(void)
{
periph_ll_enable_clk_clear_rst(PERIPH_SYSTIMER_MODULE);
systimer_ll_enable_clock();
}