lp_timer: add hal-layer codes for esp32c6

components/hal/esp32c6/lp_timer_hal.c

@@ -0,0 +1,46 @@
+/*
+ * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <esp_types.h>
+#include "sdkconfig.h"
+#include "esp_attr.h"
+#include "soc/soc.h"
+#include "hal/lp_timer_ll.h"
+
+static DRAM_ATTR struct {
+    lp_timer_dev_t *dev;
+} lp_timer_context = { .dev = &LP_TIMER };
+
+void IRAM_ATTR lp_timer_hal_set_alarm_target(uint8_t timer_id, uint64_t value)
+{
+    lp_timer_ll_clear_alarm_intr_status(lp_timer_context.dev);
+    lp_timer_ll_set_alarm_target(lp_timer_context.dev, timer_id, value);
+    lp_timer_ll_set_target_enable(lp_timer_context.dev, timer_id, true);
+}
+
+uint64_t IRAM_ATTR lp_timer_hal_get_cycle_count(uint8_t timer_id)
+{
+    lp_timer_ll_counter_snapshot(lp_timer_context.dev);
+    uint32_t lo = lp_timer_ll_get_counter_value_low(lp_timer_context.dev, timer_id);
+    uint32_t hi = lp_timer_ll_get_counter_value_high(lp_timer_context.dev, timer_id);
+    lp_timer_counter_value_t result = {
+        .lo = lo,
+        .hi = hi
+    };
+    return result.val;
+}
+
+void IRAM_ATTR lp_timer_hal_clear_alarm_intr_status(void)
+{
+    lp_timer_ll_clear_alarm_intr_status(lp_timer_context.dev);
+}
+
+void IRAM_ATTR lp_timer_hal_clear_overflow_intr_status(void)
+{
+    lp_timer_ll_clear_overflow_intr_status(lp_timer_context.dev);
+}