/* Copyright (C) 2012 mbed.org, MIT License
 * Copyright (c) <2016-2018>, <Huawei Technologies Co., Ltd>
 * All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
 * and associated documentation files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef __ARCH_SYS_ARCH_H__
#define __ARCH_SYS_ARCH_H__

#include "lwip/opt.h"
#include "lwip/err.h"
#include "los_sem.h"
#include "los_sem_pri.h"
#include "los_typedef.h"
#include "los_memory.h"
#include "semaphore.h"

#if  !LWIP_LITEOS_COMPAT
typedef struct los_sem {
    LosSemCB* sem;        /**< Semaphore attribute structure*/
} sem_t;
typedef struct los_sem sys_sem_t;
#else
typedef sem_t sys_sem_t;
#endif

struct sys_mbox {
    int first, last;
    void** msgs;
    int mbox_size;
    int isFull;
    int isEmpty;
    unsigned int  not_empty;
    unsigned int  not_full;
    unsigned int  mutex;
};

typedef struct sys_mbox* sys_mbox_t;

struct sys_thread {
    struct sys_thread* next;
    UINT32 pthread;
};

typedef unsigned int sys_thread_t;

#define sys_sem_valid(x)        (((*x).sem == NULL) ? 0 : 1)
#define sys_sem_set_invalid(x)  ( (*x).sem = NULL)

#define sys_arch_mbox_tryfetch(mbox,msg)   sys_arch_mbox_fetch(mbox,msg,1)
#define SYS_MBOX_NULL               (NULL)
#define sys_mbox_valid(mbox)  (*(mbox) != NULL)
#define sys_mbox_set_invalid(mbox) do { if((mbox) != NULL) { *(mbox) = NULL; }}while(0)

// === PROTECTION ===
typedef int sys_prot_t;

typedef u32_t sys_mutex_t;

#if (MEM_MALLOC_DMA_ALIGN != 1)
extern UINT8* m_aucSysMem0;

static inline void* sys_align_malloc(u16_t length)
{
    return LOS_MemAllocAlign(m_aucSysMem0, length, 4);
}

static inline void sys_align_free(void* mem)
{
    (void)LOS_MemFree(m_aucSysMem0, mem);
}
#endif

/** \brief  Get the current systick time in milliSeconds
 *
 *  Returns the current systick time in milliSeconds. This function is only
 *  used in standalone systems.
 *
 *  /returns current systick time in milliSeconds
 */
u32_t sys_now(void);



#endif /* __ARCH_SYS_ARCH_H__ */
