kopia lustrzana https://github.com/espressif/esp-idf
107 wiersze
2.8 KiB
C
107 wiersze
2.8 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#pragma once
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
#include "esp_err.h"
|
|
#include "ulp_common.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef enum {
|
|
ULP_RISCV_WAKEUP_SOURCE_TIMER,
|
|
ULP_RISCV_WAKEUP_SOURCE_GPIO,
|
|
} ulp_riscv_wakeup_source_t;
|
|
|
|
/**
|
|
* @brief ULP riscv init parameters
|
|
*
|
|
*/
|
|
typedef struct {
|
|
ulp_riscv_wakeup_source_t wakeup_source; /*!< ULP wakeup source */
|
|
} ulp_riscv_cfg_t;
|
|
|
|
#define ULP_RISCV_DEFAULT_CONFIG() \
|
|
{ \
|
|
.wakeup_source = ULP_RISCV_WAKEUP_SOURCE_TIMER, \
|
|
}
|
|
|
|
/**
|
|
* @brief Configure the ULP and run the program loaded into RTC memory
|
|
*
|
|
* @param cfg pointer to the config struct
|
|
* @return ESP_OK on success
|
|
*/
|
|
esp_err_t ulp_riscv_config_and_run(ulp_riscv_cfg_t* cfg);
|
|
|
|
/**
|
|
* @brief Configure the ULP with default settings
|
|
* and run the program loaded into RTC memory
|
|
*
|
|
* @return ESP_OK on success
|
|
*/
|
|
esp_err_t ulp_riscv_run(void);
|
|
|
|
/**
|
|
* @brief Load ULP-RISC-V program binary into RTC memory
|
|
*
|
|
* Different than ULP FSM, the binary program has no special format, it is the ELF
|
|
* file generated by RISC-V toolchain converted to binary format using objcopy.
|
|
*
|
|
* Linker script in components/ulp/ld/ulp_riscv.ld produces ELF files which
|
|
* correspond to this format. This linker script produces binaries with load_addr == 0.
|
|
*
|
|
* @param program_binary pointer to program binary
|
|
* @param program_size_bytes size of the program binary
|
|
* @return
|
|
* - ESP_OK on success
|
|
* - ESP_ERR_INVALID_SIZE if program_size_bytes is more than 8KiB
|
|
*/
|
|
esp_err_t ulp_riscv_load_binary(const uint8_t* program_binary, size_t program_size_bytes);
|
|
|
|
/**
|
|
* @brief Stop the ULP timer
|
|
*
|
|
* @note This will stop the ULP from waking up if halted, but will not abort any program
|
|
* currently executing on the ULP.
|
|
*/
|
|
void ulp_riscv_timer_stop(void);
|
|
|
|
|
|
/**
|
|
* @brief Resumes the ULP timer
|
|
*
|
|
* @note This will resume an already configured timer, but does no other configuration
|
|
*
|
|
*/
|
|
void ulp_riscv_timer_resume(void);
|
|
|
|
|
|
/**
|
|
* @brief Halts the program currently running on the ULP-RISC-V
|
|
*
|
|
* @note Program will restart at the next ULP timer trigger if timer is still running.
|
|
* If you want to stop the ULP from waking up then call ulp_riscv_timer_stop() first.
|
|
*/
|
|
void ulp_riscv_halt(void);
|
|
|
|
/**
|
|
* @brief Resets the ULP-RISC-V core from the main CPU
|
|
*
|
|
* @note This will reset the ULP core from the main CPU. It is intended to be used when the
|
|
* ULP is in a bad state and cannot run as intended due to a corrupt firmware or any other reason.
|
|
* The main core can reset the ULP core with this API and then re-initilialize the ULP.
|
|
*/
|
|
void ulp_riscv_reset(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|