task.h

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/*
 * SPDX-License-Identifier: GPL-3.0-only
 * This file is part of Lazuli.
 */

#ifndef LAZULI_SYS_TASK_H
#define LAZULI_SYS_TASK_H

#include <stdint.h>

#include <Lazuli/common.h>
#include <Lazuli/lazuli.h>
#include <Lazuli/list.h>

_EXTERN_C_DECL_BEGIN

typedef u_read_write_atomic_t lz_task_to_scheduler_message_t;

#define NO_MESSAGE ((lz_task_to_scheduler_message_t)0U)

#define WAIT_ACTIVATION ((lz_task_to_scheduler_message_t)1U)

#define WAIT_INTERRUPT ((lz_task_to_scheduler_message_t)2U)

#define TERMINATE_TASK ((lz_task_to_scheduler_message_t)3U)

#define WAIT_MUTEX ((lz_task_to_scheduler_message_t)4U)

#define WAIT_SOFTWARE_TIMER ((lz_task_to_scheduler_message_t)5U)

typedef struct {
  const char *name;

  void (*entryPoint)(void);

  void *stackOrigin;

  size_t stackSize;

  void *stackPointer;

  enum Lz_SchedulingPolicy schedulingPolicy;

  Lz_LinkedListElement stateQueue;

  lz_u_resolution_unit_t period;

  lz_u_resolution_unit_t completion;

  lz_u_resolution_unit_t timeUntilCompletion;

  lz_u_resolution_unit_t timeUntilActivation;

  lz_task_priority_t priority;

  lz_u_resolution_unit_t timeUntilTimerExpiration;

  volatile lz_task_to_scheduler_message_t taskToSchedulerMessage;

  void *taskToSchedulerMessageParameter;
}Task;

typedef void (*FuncVoidVoid)(void);

typedef struct {
  volatile uint8_t sreg;

  volatile uint8_t r0;

  volatile uint8_t r1;

  volatile uint8_t r2;

  volatile uint8_t r3;

  volatile uint8_t r4;

  volatile uint8_t r5;

  volatile uint8_t r6;

  volatile uint8_t r7;

  volatile uint8_t r8;

  volatile uint8_t r9;

  volatile uint8_t r10;

  volatile uint8_t r11;

  volatile uint8_t r12;

  volatile uint8_t r13;

  volatile uint8_t r14;

  volatile uint8_t r15;

  volatile uint8_t r16;

  volatile uint8_t r17;

  volatile uint8_t r18;

  volatile uint8_t r19;

  volatile uint8_t r20;

  volatile uint8_t r21;

  volatile uint8_t r22;

  volatile uint8_t r23;

  volatile uint8_t r24;

  volatile uint8_t r25;

  volatile uint8_t r26;

  volatile uint8_t r27;

  volatile uint8_t r28;

  volatile uint8_t r29;

  volatile uint8_t r30;

  volatile uint8_t r31;

  volatile FuncVoidVoid pc;

  volatile FuncVoidVoid terminationCallback;
}TaskContextLayout;

void
Task_Abort(void);

_EXTERN_C_DECL_END

#endif /* LAZULI_SYS_TASK_H */