Add FreeRTOS-Plus directory with new directory structure so it matches the FreeRTOS directory.

2025-08-19 17:48:33 -04:00 · 2013-04-18 09:17:05 +00:00 · 2013-04-18 09:17:05 +00:00 · 64a3ab321a
commit 64a3ab321a
parent 80f7e8cdd4
528 changed files with 228252 additions and 0 deletions
--- a/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/SH2A/NetworkInterface.c
+++ b/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/SH2A/NetworkInterface.c
@ -0,0 +1,161 @@
+/*
+ * FreeRTOS+UDP V1.0.0 (C) 2013 Real Time Engineers ltd.
+ *
+ * FreeRTOS+UDP is an add-on component to FreeRTOS.  It is not, in itself, part
+ * of the FreeRTOS kernel.  FreeRTOS+UDP is licensed separately from FreeRTOS,
+ * and uses a different license to FreeRTOS.  FreeRTOS+UDP uses a dual license
+ * model, information on which is provided below:
+ *
+ * - Open source licensing -
+ * FreeRTOS+UDP is a free download and may be used, modified and distributed
+ * without charge provided the user adheres to version two of the GNU General
+ * Public license (GPL) and does not remove the copyright notice or this text.
+ * The GPL V2 text is available on the gnu.org web site, and on the following
+ * URL: http://www.FreeRTOS.org/gpl-2.0.txt
+ *
+ * - Commercial licensing -
+ * Businesses and individuals who wish to incorporate FreeRTOS+UDP into
+ * proprietary software for redistribution in any form must first obtain a
+ * (very) low cost commercial license - and in-so-doing support the maintenance,
+ * support and further development of the FreeRTOS+UDP product.  Commercial
+ * licenses can be obtained from http://shop.freertos.org and do not require any
+ * source files to be changed.
+ *
+ * FreeRTOS+UDP is distributed in the hope that it will be useful.  You cannot
+ * use FreeRTOS+UDP unless you agree that you use the software 'as is'.
+ * FreeRTOS+UDP is provided WITHOUT ANY WARRANTY; without even the implied
+ * warranties of NON-INFRINGEMENT, MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. Real Time Engineers Ltd. disclaims all conditions and terms, be they
+ * implied, expressed, or statutory.
+ *
+ * 1 tab == 4 spaces!
+ *
+ * http://www.FreeRTOS.org
+ * http://www.FreeRTOS.org/udp
+ *
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* FreeRTOS includes. */
+#include "FreeRTOS.h"
+#include "task.h"
+#include "queue.h"
+#include "semphr.h"
+
+/* FreeRTOS+UDP includes. */
+#include "FreeRTOS_UDP_IP.h"
+#include "FreeRTOS_Sockets.h"
+#include "NetworkBufferManagement.h"
+
+/* Hardware includes. */
+#include "hwEthernet.h"
+
+/* Demo includes. */
+#include "NetworkInterface.h"
+
+#if ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES != 1
+	#define ipCONSIDER_FRAME_FOR_PROCESSING( pucEthernetBuffer ) eProcessBuffer
+#else
+	#define ipCONSIDER_FRAME_FOR_PROCESSING( pucEthernetBuffer ) eConsiderFrameForProcessing( ( pucEthernetBuffer ) )
+#endif
+
+/* When a packet is ready to be sent, if it cannot be sent immediately then the
+task performing the transmit will block for niTX_BUFFER_FREE_WAIT
+milliseconds.  It will do this a maximum of niMAX_TX_ATTEMPTS before giving
+up. */
+#define niTX_BUFFER_FREE_WAIT	( ( portTickType ) 2UL / portTICK_RATE_MS )
+#define niMAX_TX_ATTEMPTS		( 5 )
+
+/* The length of the queue used to send interrupt status words from the
+interrupt handler to the deferred handler task. */
+#define niINTERRUPT_QUEUE_LENGTH	( 10 )
+
+/*-----------------------------------------------------------*/
+
+/*
+ * A deferred interrupt handler task that processes
+ */
+extern void vEMACHandlerTask( void *pvParameters );
+
+/*-----------------------------------------------------------*/
+
+/* The queue used to communicate Ethernet events with the IP task. */
+extern xQueueHandle xNetworkEventQueue;
+
+/* The semaphore used to wake the deferred interrupt handler task when an Rx
+interrupt is received. */
+xSemaphoreHandle xEMACRxEventSemaphore = NULL;
+/*-----------------------------------------------------------*/
+
+portBASE_TYPE xNetworkInterfaceInitialise( void )
+{
+portBASE_TYPE xStatus, xReturn;
+extern uint8_t ucMACAddress[ 6 ];
+
+	/* Initialise the MAC. */
+	vInitEmac();
+
+	while( lEMACWaitForLink() != pdPASS )
+    {
+        vTaskDelay( 20 );
+    }
+
+	vSemaphoreCreateBinary( xEMACRxEventSemaphore );
+	configASSERT( xEMACRxEventSemaphore );
+
+	/* The handler task is created at the highest possible priority to
+	ensure the interrupt handler can return directly to it. */
+	xTaskCreate( vEMACHandlerTask, ( const signed char * const ) "EMAC", configMINIMAL_STACK_SIZE, NULL, configMAX_PRIORITIES - 1, NULL );
+	xReturn = pdPASS;
+
+	return xReturn;
+}
+/*-----------------------------------------------------------*/
+
+portBASE_TYPE xNetworkInterfaceOutput( xNetworkBufferDescriptor_t * const pxNetworkBuffer )
+{
+extern void vEMACCopyWrite( uint8_t * pucBuffer, uint16_t usLength );
+
+	vEMACCopyWrite( pxNetworkBuffer->pucBuffer, pxNetworkBuffer->xDataLength );
+
+	/* Finished with the network buffer. */
+	vNetworkBufferRelease( pxNetworkBuffer );
+
+	return pdTRUE;
+}
+/*-----------------------------------------------------------*/
+
+#if 0
+void ENET_IRQHandler( void )
+{
+uint32_t ulInterruptCause;
+
+	while( ( ulInterruptCause = LPC_EMAC->IntStatus ) != 0 )
+	{
+		/* Clear the interrupt. */
+		LPC_EMAC->IntClear = ulInterruptCause;
+
+		/* Clear fatal error conditions.  NOTE:  The driver does not clear all
+		errors, only those actually experienced.  For future reference, range
+		errors are not actually errors so can be ignored. */
+		if( ( ulInterruptCause & EMAC_INT_TX_UNDERRUN ) != 0U )
+		{
+			LPC_EMAC->Command |= EMAC_CR_TX_RES;
+		}
+
+		/* Unblock the deferred interrupt handler task if the event was an
+		Rx. */
+		if( ( ulInterruptCause & EMAC_INT_RX_DONE ) != 0UL )
+		{
+			xSemaphoreGiveFromISR( xEMACRxEventSemaphore, NULL );
+		}
+	}
+
+	/* Shortcut calling portEND_SWITCHING_ISR(). */
+	vPortYieldFromISR();
+}
+/*-----------------------------------------------------------*/
+#endif
+