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48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/*
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* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "esp_log.h"
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#include "esp_check.h"
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#include "esp_heap_caps.h"
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#include "esp_systick_etm.h"
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#include "soc/soc_caps.h"
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#include "soc/soc_etm_source.h"
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#include "esp_private/systimer.h"
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#include "esp_private/etm_interface.h"
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#define ETM_MEM_ALLOC_CAPS MALLOC_CAP_DEFAULT
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static const char *TAG = "systick-etm";
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static esp_err_t systick_etm_event_del(esp_etm_event_t *event)
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{
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free(event);
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return ESP_OK;
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}
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esp_err_t esp_systick_new_etm_alarm_event(int core_id, esp_etm_event_handle_t *out_event)
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{
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esp_etm_event_t *event = NULL;
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esp_err_t ret = ESP_OK;
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ESP_GOTO_ON_FALSE(out_event && core_id < SOC_CPU_CORES_NUM, ESP_ERR_INVALID_ARG, err, TAG, "invalid argument");
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event = heap_caps_calloc(1, sizeof(esp_etm_event_t), ETM_MEM_ALLOC_CAPS);
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ESP_GOTO_ON_FALSE(event, ESP_ERR_NO_MEM, err, TAG, "no memory for ETM event");
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// fill the ETM event object
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uint32_t event_id = SYSTIMER_EVT_CNT_CMP0 + SYSTIMER_ALARM_OS_TICK_CORE0 + core_id;
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event->event_id = event_id;
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event->trig_periph = ETM_TRIG_PERIPH_SYSTIMER;
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event->del = systick_etm_event_del;
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*out_event = event;
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return ESP_OK;
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err:
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if (event) {
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systick_etm_event_del(event);
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}
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return ret;
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}
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