diff options
| -rw-r--r-- | ports/mimxrt/eth.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/ports/mimxrt/eth.c b/ports/mimxrt/eth.c index af0264d08..08e4dcc09 100644 --- a/ports/mimxrt/eth.c +++ b/ports/mimxrt/eth.c @@ -174,7 +174,7 @@ void eth_irq_handler(ENET_Type *base, enet_handle_t *handle, enet_event_t event, } } while (status != kStatus_ENET_RxFrameEmpty); } else { - ENET_ClearInterruptStatus(base, kENET_TxFrameInterrupt); + ENET_ClearInterruptStatus(base, ENET_TX_INTERRUPT | ENET_ERR_INTERRUPT); } } @@ -279,6 +279,7 @@ void eth_init(eth_t *self, int mac_idx, const phy_operations_t *phy_ops, int phy mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("PHY Init failed.")); } + ENET_Reset(ENET); ENET_GetDefaultConfig(&enet_config); enet_config.miiSpeed = (enet_mii_speed_t)speed; enet_config.miiDuplex = (enet_mii_duplex_t)duplex; @@ -311,6 +312,22 @@ void eth_set_trace(eth_t *self, uint32_t value) { /*******************************************************************************/ // ETH-LwIP bindings +STATIC err_t eth_send_frame_blocking(ENET_Type *base, enet_handle_t *handle, uint8_t *buffer, int len) { + status_t status; + int i; + #define XMIT_LOOP 10 + + // Try a few times to send the frame + for (i = XMIT_LOOP; i > 0; i--) { + status = ENET_SendFrame(base, handle, buffer, len); + if (status != kStatus_ENET_TxFrameBusy) { + break; + } + ticks_delay_us64(100); + } + return status; +} + STATIC err_t eth_netif_output(struct netif *netif, struct pbuf *p) { // This function should always be called from a context where PendSV-level IRQs are disabled status_t status; @@ -319,7 +336,7 @@ STATIC err_t eth_netif_output(struct netif *netif, struct pbuf *p) { eth_trace(netif->state, (size_t)-1, p, NETUTILS_TRACE_IS_TX | NETUTILS_TRACE_NEWLINE); if (p->next == NULL) { - status = ENET_SendFrame(ENET, &g_handle, p->payload, p->len); + status = eth_send_frame_blocking(ENET, &g_handle, p->payload, p->len); } else { // frame consists of several parts. Copy them together and send them size_t length = 0; @@ -330,8 +347,8 @@ STATIC err_t eth_netif_output(struct netif *netif, struct pbuf *p) { length += p->len; p = p->next; } - status = ENET_SendFrame(ENET, &g_handle, tx_frame, length); - } + status = eth_send_frame_blocking(ENET, &g_handle, tx_frame, length); + } return status == kStatus_Success ? ERR_OK : ERR_BUF; } |