Move p1_release into develop, based on top of the latest master

FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/portable/NetworkInterface/RISC-V/NetworkInterface.c

@@ -0,0 +1,129 @@
+/*
+FreeRTOS+TCP V2.0.11
+Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  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.
+
+ http://aws.amazon.com/freertos
+ http://www.FreeRTOS.org
+*/
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* FreeRTOS includes. */
+#include "FreeRTOS.h"
+#include "task.h"
+#include "queue.h"
+#include "semphr.h"
+
+#include "FreeRTOS_IP.h"
+
+/* FreeRTOS+TCP includes. */
+#include "FreeRTOS_UDP_IP.h"
+#include "FreeRTOS_Sockets.h"
+#include "NetworkBufferManagement.h"
+
+/* FreeRTOS+TCP includes. */
+#include "NetworkInterface.h"
+
+/* Board specific includes */
+#include "riscv_hal_eth.h"
+
+BaseType_t xNetworkInterfaceInitialise( void )
+{
+	FreeRTOS_debug_printf( ("xNetworkInterfaceInitialise\r\n") );
+
+	// Init DMA
+	configASSERT(DmaSetup(&AxiDmaInstance, XPAR_AXIDMA_0_DEVICE_ID) == 0);
+
+	// Init Ethernet
+	configASSERT(PhySetup(&AxiEthernetInstance, XPAR_AXIETHERNET_0_DEVICE_ID) == 0);
+
+	// Connect to PLIC
+	configASSERT(AxiEthernetSetupIntrSystem(&Plic, &AxiEthernetInstance, &AxiDmaInstance, PLIC_SOURCE_ETH, XPAR_AXIETHERNET_0_DMA_RX_INTR,
+						XPAR_AXIETHERNET_0_DMA_TX_INTR) == 0);
+
+	uint16_t Speed;
+	configASSERT( XAxiEthernet_GetSgmiiStatus(&AxiEthernetInstance, &Speed) == 0);
+
+	/*
+	 * Start the Axi Ethernet and enable its ERROR interrupts
+	 */
+	XAxiEthernet_Start(&AxiEthernetInstance);
+	XAxiEthernet_IntEnable(&AxiEthernetInstance, XAE_INT_RECV_ERROR_MASK);
+
+	vTaskDelay(pdMS_TO_TICKS(AXIETHERNET_PHY_DELAY_SEC*1000));
+	return pdPASS;
+}
+/*-----------------------------------------------------------*/
+
+BaseType_t xNetworkInterfaceOutput( NetworkBufferDescriptor_t * const pxNetworkBuffer, BaseType_t xReleaseAfterSend )
+{
+	/* get BD ring descriptor */
+	XAxiDma_BdRing *TxRingPtr = XAxiDma_GetTxRing(&AxiDmaInstance);
+	XAxiDma_Bd * BdPtr;
+
+	FreeRTOS_debug_printf( ("xNetworkInterfaceOutput\r\n") );
+
+	/* allocate next BD from the BD ring */
+	taskENTER_CRITICAL();
+	configASSERT( XAxiDma_BdRingAlloc(TxRingPtr, 1, &BdPtr) == 0);
+	taskEXIT_CRITICAL();
+
+	/* configure BD */
+	uint8_t* xTxBuffer = AxiEthernetGetTxBuffer();
+	memcpy(xTxBuffer, pxNetworkBuffer->pucEthernetBuffer, pxNetworkBuffer->xDataLength);
+	XAxiDma_BdSetBufAddr(BdPtr,(u32)xTxBuffer);
+	XAxiDma_BdSetLength(BdPtr, pxNetworkBuffer->xDataLength, TxRingPtr->MaxTransferLen);
+	XAxiDma_BdSetCtrl(BdPtr, XAXIDMA_BD_CTRL_TXSOF_MASK |
+			     XAXIDMA_BD_CTRL_TXEOF_MASK);
+
+	/* pass BD to HW */
+	taskENTER_CRITICAL();
+	configASSERT( XAxiDma_BdRingToHw(TxRingPtr, 1, BdPtr) == 0 );
+
+	/* start transaction */
+	configASSERT( XAxiDma_BdRingStart(TxRingPtr) == 0);
+	taskEXIT_CRITICAL();
+
+	/* Call the standard trace macro to log the send event. */
+    iptraceNETWORK_INTERFACE_TRANSMIT();
+
+	// simple driver
+	if( xReleaseAfterSend != pdFALSE )
+    {
+        /* It is assumed SendData() copies the data out of the FreeRTOS+TCP Ethernet
+        buffer.  The Ethernet buffer is therefore no longer needed, and must be
+        freed for re-use. */
+        vReleaseNetworkBufferAndDescriptor( pxNetworkBuffer );
+    }
+
+	return pdPASS;
+}
+/*-----------------------------------------------------------*/
+
+BaseType_t xGetPhyLinkStatus( void )
+{
+	if (PhyLinkStatus(&AxiEthernetInstance)) {
+		return pdPASS;
+	} else {
+		return pdFAIL;
+	}
+}
+/*-----------------------------------------------------------*/