mirror of
https://github.com/Decscots/Lockpick_RCM.git
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150 lines
3.0 KiB
C
150 lines
3.0 KiB
C
/**
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* @file lv_task.c
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* An 'lv_task' is a void (*fp) (void* param) type function which will be called periodically.
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* A priority (5 levels + disable) can be assigned to lv_tasks.
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*/
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#ifndef LV_TASK_H
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#define LV_TASK_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#ifdef LV_CONF_INCLUDE_SIMPLE
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#include "lv_conf.h"
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#else
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#include "../../lv_conf.h"
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#endif
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#include <stdint.h>
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#include "lv_mem.h"
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#include "lv_ll.h"
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/*********************
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* DEFINES
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*********************/
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#ifndef LV_ATTRIBUTE_TASK_HANDLER
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#define LV_ATTRIBUTE_TASK_HANDLER
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#endif
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/**********************
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* TYPEDEFS
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**********************/
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/**
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* Possible priorities for lv_tasks
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*/
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#define LV_TASK_ONESHOT 0
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enum
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{
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LV_TASK_PRIO_OFF = 0,
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LV_TASK_PRIO_LOWEST,
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LV_TASK_PRIO_LOW,
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LV_TASK_PRIO_MID,
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LV_TASK_PRIO_HIGH,
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LV_TASK_PRIO_HIGHEST,
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LV_TASK_PRIO_NUM,
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};
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typedef uint8_t lv_task_prio_t;
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/**
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* Descriptor of a lv_task
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*/
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typedef struct
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{
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uint32_t period;
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uint32_t last_run;
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void (*task) (void*);
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void * param;
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uint8_t prio:3;
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uint8_t once:1;
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} lv_task_t;
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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/**
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* Init the lv_task module
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*/
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void lv_task_init(void);
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/**
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* Call it periodically to handle lv_tasks.
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*/
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LV_ATTRIBUTE_TASK_HANDLER void lv_task_handler(void);
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/**
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* Create a new lv_task
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* @param task a function which is the task itself
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* @param period call period in ms unit
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* @param prio priority of the task (LV_TASK_PRIO_OFF means the task is stopped)
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* @param param free parameter
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* @return pointer to the new task
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*/
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lv_task_t* lv_task_create(void (*task) (void *), uint32_t period, lv_task_prio_t prio, void * param);
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/**
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* Delete a lv_task
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* @param lv_task_p pointer to task created by lv_task_p
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*/
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void lv_task_del(lv_task_t* lv_task_p);
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/**
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* Set new priority for a lv_task
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* @param lv_task_p pointer to a lv_task
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* @param prio the new priority
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*/
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void lv_task_set_prio(lv_task_t* lv_task_p, lv_task_prio_t prio);
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/**
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* Set new period for a lv_task
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* @param lv_task_p pointer to a lv_task
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* @param period the new period
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*/
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void lv_task_set_period(lv_task_t* lv_task_p, uint32_t period);
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/**
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* Make a lv_task ready. It will not wait its period.
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* @param lv_task_p pointer to a lv_task.
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*/
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void lv_task_ready(lv_task_t* lv_task_p);
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/**
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* Delete the lv_task after one call
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* @param lv_task_p pointer to a lv_task.
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*/
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void lv_task_once(lv_task_t * lv_task_p);
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/**
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* Reset a lv_task.
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* It will be called the previously set period milliseconds later.
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* @param lv_task_p pointer to a lv_task.
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*/
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void lv_task_reset(lv_task_t* lv_task_p);
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/**
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* Enable or disable the whole lv_task handling
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* @param en: true: lv_task handling is running, false: lv_task handling is suspended
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*/
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void lv_task_enable(bool en);
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/**
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* Get idle percentage
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* @return the lv_task idle in percentage
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*/
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uint8_t lv_task_get_idle(void);
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/**********************
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* MACROS
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**********************/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif
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