/*============================
* post a mutex to thread
* 信号量的释放
*===========================*/
acoral_u32 acoral_mutex_post(acoral_evt_t *evt)
{
acoral_sr cpu_sr;
acoral_u8 ownerPrio;
acoral_u8 highPrio;
acoral_u32 index;
acoral_thread_t *thread;
acoral_list_t *head;
acoral_thread_t *cur;
HAL_ENTER_CRITICAL();
acoral_spin_lock(&evt->spin_lock);
if ( NULL == evt )
{
acoral_printerr("mutex NULL\n");
acoral_spin_unlock(&evt->spin_lock);
HAL_EXIT_CRITICAL();
return MUTEX_ERR_NULL; /*error*/
}
highPrio = (acoral_u8)(evt->count >> 8);
ownerPrio = (acoral_u8)(evt->count & MUTEX_L_MASK);
cur=acoral_cur_thread;
if (highPrio!=0&&cur->prio != highPrio && cur->prio != ownerPrio )
{
acoral_printerr("mutex prio err\n");
acoral_spin_unlock(&evt->spin_lock);
HAL_EXIT_CRITICAL();
return MUTEX_ERR_UNDEF;
}
cur->evt=NULL;
if (cur->prio != ownerPrio)
{
/* 提升过优先级，进行优先级复原*/
acoral_change_prio_self(ownerPrio);
}
thread =acoral_evt_high_thread(evt);
if (thread==NULL) {
evt->count |= MUTEX_AVAI;
evt->data = NULL;
acoral_spin_unlock(&evt->spin_lock);
HAL_EXIT_CRITICAL();
return MUTEX_SUCCED;
}
timeout_queue_del(thread);
acoral_evt_queue_del(thread);
#ifdef CFG_TEST
acoral_print("%d post %d\n",cur->prio,thread->prio);
#endif
evt->count &= MUTEX_U_MASK;
evt->count |= thread->prio;
evt->data = thread;
acoral_rdy_thread(thread);
acoral_spin_unlock(&evt->spin_lock);
HAL_EXIT_CRITICAL();
acoral_sched();
return MUTEX_SUCCED;
}
/**
* In this function, the hardware should be initialized.
* Called from ethernetif_init().
*
* @param netif the already initialized lwip network interface structure
* for this ethernetif
*/
static void
low_level_init(struct netif *netif)
{
/* set MAC hardware address length */
netif->hwaddr_len = ETHARP_HWADDR_LEN;
/* set MAC hardware address */
/* MAC地址 */
netif->hwaddr[0] = 0x00;
netif->hwaddr[1] = 0x11;
netif->hwaddr[2] = 0x22;
netif->hwaddr[3] = 0x33;
netif->hwaddr[4] = 0x44;
netif->hwaddr[5] = 0x55;
/* maximum transfer unit */
/* 最大传输单元 */
netif->mtu = 1500;
/* device capabilities */
/* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
/* Do whatever else is needed to initialize interface. */
/* 初始化enc28j60 */
// pegasus0809
// hw_init(netif->hwaddr);
net_dev_id = acoral_dev_open("netdev");
if (net_dev_id == ACORAL_DEV_ERR_ID)
{
acoral_printerr("Not Found Net Device\n");
return;
}
acoral_dev_config(net_dev_id, NET_DEV_INIT, netif->hwaddr, 0);
}
