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ulp: add support for using lp timer with lp core on C6

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This commit is contained in:
Marius Vikhammer
2023-04-26 13:58:19 +08:00
parent f5020d3f1b
commit 45fd8feba3
23 changed files with 504 additions and 55 deletions
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17
components/ulp/lp_core/include/ulp_lp_core.h
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@@ -16,16 +16,19 @@ extern "C" {
#endif
typedef enum {
ULP_LP_CORE_WAKEUP_SOURCE_HP_CPU, // LP core is started by HP core (1 single wakeup)
} ulp_lp_core_wakeup_source_t;
#define ULP_LP_CORE_WAKEUP_SOURCE_HP_CPU BIT(0) // Started by HP core (1 single wakeup)
#define ULP_LP_CORE_WAKEUP_SOURCE_LP_UART BIT(1) // Enable wake-up by a certain number of LP UART RX pulses
#define ULP_LP_CORE_WAKEUP_SOURCE_LP_IO BIT(2) // Enable wake-up by LP IO interrupt
#define ULP_LP_CORE_WAKEUP_SOURCE_ETM BIT(3) // Enable wake-up by ETM event
#define ULP_LP_CORE_WAKEUP_SOURCE_LP_TIMER BIT(4) // Enable wake-up by LP timer
/**
* @brief ULP LP core init parameters
*
*/
typedef struct {
ulp_lp_core_wakeup_source_t wakeup_source;
uint32_t wakeup_source; // Wakeup source flags
uint32_t lp_timer_sleep_duration_us; // Sleep duration when ULP_LP_CORE_WAKEUP_SOURCE_LP_TIMER is specified.
} ulp_lp_core_cfg_t;
/**
@@ -47,6 +50,12 @@ esp_err_t ulp_lp_core_run(ulp_lp_core_cfg_t* cfg);
*/
esp_err_t ulp_lp_core_load_binary(const uint8_t* program_binary, size_t program_size_bytes);
/**
* @brief Puts the ulp to sleep and disables all wakeup sources.
* To restart the ULP call ulp_lp_core_run() with the desired
* wake up trigger.
*/
void ulp_lp_core_stop(void);
#ifdef __cplusplus
}

36
components/ulp/lp_core/include/ulp_lp_core_utils.h
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@@ -1,36 +0,0 @@
/*
* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
/**
* @brief Wakeup main CPU from sleep or deep sleep.
*
* This raises a software interrupt signal, if the
* main CPU has configured the ULP as a wakeup source
* calling this function will make the main CPU to
* exit from sleep or deep sleep.
*/
void ulp_lp_core_wakeup_main_processor(void);
/**
* @brief Makes the co-processor busy wait for a certain number of microseconds
*
* @param us Number of microseconds to busy-wait for
*/
void ulp_lp_core_delay_us(uint32_t us);
#ifdef __cplusplus
}
#endif