void ethernet_hardware_init(void)
{
/* Reset PHY */
//rstc_set_external_reset(RSTC, 13); /* (2^(13+1))/32768 */
// rstc_set_external_reset(RSTC, 15);
// rstc_reset_extern(RSTC);
// while (rstc_get_status(RSTC) & RSTC_SR_NRSTL) {
// }
// ResetEther();
while(ResettingEther()) {}
/* Wait for PHY to be ready (CAT811: Max400ms) */
{
volatile u32_t ul_dealy = SystemCoreClock / 6;
while (ul_dealy--) { }
}
/* Enable EMAC clock */
pmc_enable_periph_clk(ID_EMAC);
{
emac_options_t emac_option;
/* Fill in EMAC options */
emac_option.uc_copy_all_frame = 1;
emac_option.uc_no_boardcast = 0;
memcpy(emac_option.uc_mac_addr, gs_uc_mac_address, sizeof(gs_uc_mac_address));
gs_emac_dev.p_hw = EMAC;
/* Init EMAC driver structure */
emac_dev_init(EMAC, &gs_emac_dev, &emac_option);
}
/* Enable Interrupt */
NVIC_EnableIRQ(EMAC_IRQn);
/* Init MAC PHY driver */
if (ethernet_phy_init(EMAC, BOARD_EMAC_PHY_ADDR, SystemCoreClock) != EMAC_OK) {
LWIP_DEBUGF(LWIP_DBG_TRACE, ("PHY Initialize ERROR!\r"));
return;
}
}
/**
* \brief 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)
{
volatile u32_t ul_dealy;
emac_options_t emac_option;
#ifdef FREERTOS_USED
unsigned portBASE_TYPE uxPriority;
#endif
/* Set MAC hardware address length */
netif->hwaddr_len = sizeof(gs_uc_mac_address);
/* Set MAC hardware address */
netif->hwaddr[0] = gs_uc_mac_address[0];
netif->hwaddr[1] = gs_uc_mac_address[1];
netif->hwaddr[2] = gs_uc_mac_address[2];
netif->hwaddr[3] = gs_uc_mac_address[3];
netif->hwaddr[4] = gs_uc_mac_address[4];
netif->hwaddr[5] = gs_uc_mac_address[5];
/* Maximum transfer unit */
netif->mtu = NET_MTU;
/* Configure EMAC pins */
// ethPinsInit();
/* gpio_configure_pin(PIN_EEMAC_EREFCK, PIN_EMAC_FLAGS);
gpio_configure_pin(PIN_EMAC_ETX0, PIN_EMAC_FLAGS);
gpio_configure_pin(PIN_EMAC_ETX1, PIN_EMAC_FLAGS);
gpio_configure_pin(PIN_EMAC_ETXEN, PIN_EMAC_FLAGS);
gpio_configure_pin(PIN_EMAC_ECRSDV, PIN_EMAC_FLAGS);
gpio_configure_pin(PIN_EMAC_ERX0, PIN_EMAC_FLAGS);
gpio_configure_pin(PIN_EMAC_ERX1, PIN_EMAC_FLAGS);
gpio_configure_pin(PIN_EMAC_ERXER, PIN_EMAC_FLAGS);
gpio_configure_pin(PIN_EMAC_EMDC, PIN_EMAC_FLAGS);
gpio_configure_pin(PIN_EMAC_EMDIO, PIN_EMAC_FLAGS);
*/
/* device capabilities */
/* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
netif->flags |= NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP
#if defined(DHCP_USED)
| NETIF_FLAG_DHCP
#endif
;
#ifdef FREERTOS_USED
/*
* NOTE: This routine contains code that polls status bits. If the Ethernet
* cable is not plugged in then this can take a considerable time. To prevent
* this from starving lower priority tasks of processing time we lower our
* priority prior to the call, then raise it back again once the initialization
* is complete.
*/
/* Read the priority of the current task. */
uxPriority = uxTaskPriorityGet( NULL );
/* Set the priority of the current task to the lowest possible. */
vTaskPrioritySet( NULL, tskIDLE_PRIORITY );
#endif
/* Reset PHY */
//rstc_set_external_reset(RSTC, 13); /* (2^(13+1))/32768 */
// rstc_set_external_reset(RSTC, 15);
// rstc_reset_extern(RSTC);
// while (rstc_get_status(RSTC) & RSTC_SR_NRSTL) {
// }
// ResetEther();
while(ResettingEther()){}
/* Wait for PHY to be ready (CAT811: Max400ms) */
ul_dealy = SystemCoreClock / 6;
while (ul_dealy--) {
}
/* Enable EMAC clock */
pmc_enable_periph_clk(ID_EMAC);
/* Fill in EMAC options */
emac_option.uc_copy_all_frame = 1;
emac_option.uc_no_boardcast = 0;
memcpy(emac_option.uc_mac_addr, gs_uc_mac_address,
sizeof(gs_uc_mac_address));
gs_emac_dev.p_hw = EMAC;
/* Init EMAC driver structure */
emac_dev_init(EMAC, &gs_emac_dev, &emac_option);
/* Enable Interrupt */
NVIC_EnableIRQ(EMAC_IRQn);
/* Init MAC PHY driver */
if (ethernet_phy_init(EMAC, BOARD_EMAC_PHY_ADDR,
SystemCoreClock) != EMAC_OK) {
LWIP_DEBUGF(LWIP_DBG_TRACE, ("PHY Initialize ERROR!\r"));
return;
}
/* Auto Negotiate, work in RMII mode */
if (ethernet_phy_auto_negotiate(EMAC, BOARD_EMAC_PHY_ADDR) != EMAC_OK) {
LWIP_DEBUGF(LWIP_DBG_TRACE, ("Auto Negotiate ERROR!\r"));
return;
}
/* Establish ethernet link */
while (ethernet_phy_set_link(EMAC, BOARD_EMAC_PHY_ADDR, 1) != EMAC_OK) {
LWIP_DEBUGF(LWIP_DBG_TRACE,("Set link ERROR!\r"));
}
/**@todo debug*/
netif->flags |= NETIF_FLAG_LINK_UP; //the link is up?
//printf("netif->flags %X \n", netif->flags);
#ifdef FREERTOS_USED
/* Restore the priority of the current task. */
vTaskPrioritySet( NULL, uxPriority );
/* Create the task that handles the EMAC input packets. */
sys_thread_new( "ETHINT", ethernetif_input, netif,
netifINTERFACE_TASK_STACK_SIZE,
netifINTERFACE_TASK_PRIORITY );
#endif
}
