sys_arch.c

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/*
 * Copyright (c) 2001, Swedish Institute of Computer Science.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * This file is part of the lwIP TCP/IP stack.
 *
 * Author: Adam Dunkels <adam@sics.se>
 *
 * $Id: sys_arch.c,v 1.1 2007/03/19 20:10:27 tmbinc Exp $
 */
 
#include "lwip/sys.h"
#include "lwip/def.h"
#include "lwip/timers.h"
#include "ppc/time.h"
 
static tb_t startTime;
//struct sys_timeouts timeouts;
struct sys_timeo timeouts;
 
/*-----------------------------------------------------------------------------------*/
void
sys_arch_block(u16_t time)
{
    int i;
    for (i=0; i< time*1000; ++i) ;
}
/*-----------------------------------------------------------------------------------*/
//sys_mbox_t
//sys_mbox_new(void)
//{
//  return SYS_MBOX_NULL;
//}
//void
//sys_mbox_free(sys_mbox_t mbox)
//{
//  return;
//}
//void
//sys_mbox_post(sys_mbox_t mbox, void *data)
//{
//  return;
//}
/*-----------------------------------------------------------------------------------*/
u16_t
sys_arch_mbox_fetch(sys_mbox_t mbox, void **data, u16_t timeout)
{
  sys_arch_block(timeout);
  return 0;
}
/*-----------------------------------------------------------------------------------*/
u16_t
sys_arch_mbox_tryfetch(sys_mbox_t mbox, void **data, u16_t timeout)
{
  sys_arch_block(timeout);
  return 0;
}
//sys_sem_t
//sys_sem_new(u8_t count)
//{
//  return 0;
//}
//u16_t
//sys_arch_sem_wait(sys_sem_t sem, u16_t timeout)
//{
//  sys_arch_block(timeout);
//  return 0;
//}
//void
//sys_sem_signal(sys_sem_t sem)
//{
//  return;
//}
//void
//sys_sem_free(sys_sem_t sem)
//{
//  return;
//}
 
void
sys_init(void)
{
    timeouts.next = NULL;
    mftb(&startTime);
    return;
}
/*-----------------------------------------------------------------------------------*/
struct sys_timeo *
sys_arch_timeouts(void)
{
  return &timeouts;
}
 
u32_t sys_now(void)
{
    tb_t now;
    mftb(&now);
    return (u32_t) tb_diff_msec(&now, &startTime);
}
 
u32_t sys_jiffies(void) /* since power up. */
{
    //static int count = 0;
    //return ++count;
    //tb_t now;
    //mftb(&now);
    //return (u32_t) now.l;
 
    return sys_now();
 
}
 
/*-----------------------------------------------------------------------------------*/
/*
void
sys_thread_new(void (* function)(void *arg), void *arg)
{
}
*/
 
//
//sys_thread_t
//sys_thread_new(char *name, void (* thread)(void *arg), void *arg, int stacksize, int prio)
//
//  return 0;
//}
 
/*-----------------------------------------------------------------------------------*/