esp-idf/components/perfmon/include/xtensa_perfmon_apis.h

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// Copyright 2018-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _xtensa_perfmon_apis_H_
#define _xtensa_perfmon_apis_H_
#include "xtensa_perfmon_access.h"
#include "xtensa_perfmon_masks.h"
#ifdef __cplusplus
extern "C"
{
#endif
/**
* @brief Performance monitor configuration structure
*
* Structure to configure performance counter to measure dedicated function
*/
typedef struct xtensa_perfmon_config {
int repeat_count; /*!< how much times function will be called before the calback will be repeated */
float max_deviation; /*!< Difference between min and max counter number 0..1, 0 - no difference, 1 - not used */
void *call_params; /*!< This pointer will be passed to the call_function as a parameter */
void (*call_function)(void *params); /*!< pointer to the function that have to be called */
void (*callback)(void *params, uint32_t select, uint32_t mask, uint32_t value); /*!< pointer to the function that will be called with result parameters */
void *callback_params; /*!< parameter that will be passed to the callback */
int tracelevel; /*!< trace level for all counters.
In case of negative value, the filter will be ignored.
If it's >=0, then the perfmon will count only when interrupt level > tracelevel. It's useful to monitor interrupts. */
uint32_t counters_size;/*!< amount of counter in the list */
const uint32_t *select_mask; /*!< list of the select/mask parameters */
} xtensa_perfmon_config_t;
/**
* @brief Execute PM
*
* Execute performance counter for dedicated function with defined parameters
*
* @param[in] config: pointer to the configuration structure
*
* @return
* - ESP_OK if no errors
* - ESP_ERR_INVALID_ARG if one of the required parameters not defined
* - ESP_FAIL - counter overflow
*/
esp_err_t xtensa_perfmon_exec(const xtensa_perfmon_config_t *config);
/**
* @brief Dump PM results
*
* Callback to dump perfmon result to a FILE* stream specified in
* perfmon_config_t::callback_params. If callback_params is set to NULL, will print to stdout
*
* @param[in] params: used parameters passed from configuration (callback_params).
* This parameter expected as FILE* hanle, where data will be stored.
* If this parameter NULL, then data will be stored to the stdout.
* @param[in] select: select value for current counter
* @param[in] mask: mask value for current counter
* @param[in] value: counter value for current counter
*
*/
void xtensa_perfmon_view_cb(void *params, uint32_t select, uint32_t mask, uint32_t value);
#ifdef __cplusplus
}
#endif
#endif // _xtensa_perfmon_apis_H_