From 8b50c3d847e23cc8b1b5199fdb4a48871574cf58 Mon Sep 17 00:00:00 2001 From: richardbarry Date: Mon, 3 Jun 2013 20:27:46 +0000 Subject: [PATCH] Update the FreeRTOS+UDP LPC18xx MAC driver to use the LPCOpen drivers. git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@1904 1d2547de-c912-0410-9cb9-b8ca96c0e9e2 --- .../LPC18xx/NetworkInterface.c | 87 +-- .../LPC18xx/lpc18xx_43xx_EMAC_LPCOpen.c | 339 ++++++++++ .../LPC18xx/lpc18xx_43xx_EMAC_LPCOpen.h | 83 +++ .../NetworkInterface/LPC18xx/lpc18xx_emac.c | 610 ------------------ .../NetworkInterface/LPC18xx/lpc18xx_emac.h | 238 ------- 5 files changed, 446 insertions(+), 911 deletions(-) create mode 100644 FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_43xx_EMAC_LPCOpen.c create mode 100644 FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_43xx_EMAC_LPCOpen.h delete mode 100644 FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_emac.c delete mode 100644 FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_emac.h diff --git a/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/NetworkInterface.c b/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/NetworkInterface.c index ee281a288..3e2aac7dd 100644 --- a/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/NetworkInterface.c +++ b/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/NetworkInterface.c @@ -53,13 +53,14 @@ #include "FreeRTOS_IP_Private.h" #include "FreeRTOS_Sockets.h" #include "NetworkBufferManagement.h" - -/* Driver includes. */ -#include "lpc18xx_emac.h" +#include "lpc18xx_43xx_EMAC_LPCOpen.h" /* Demo includes. */ #include "NetworkInterface.h" +/* Library includes. */ +#include "board.h" + #if configMAC_INTERRUPT_PRIORITY > configMAC_INTERRUPT_PRIORITY #error configMAC_INTERRUPT_PRIORITY must be greater than or equal to configMAC_INTERRUPT_PRIORITY (higher numbers mean lower logical priority) #endif @@ -93,23 +94,19 @@ extern xQueueHandle xNetworkEventQueue; /* The semaphore used to wake the deferred interrupt handler task when an Rx interrupt is received. */ -static xSemaphoreHandle xEMACRxEventSemaphore = NULL; +xSemaphoreHandle xEMACRxEventSemaphore = NULL; /*-----------------------------------------------------------*/ portBASE_TYPE xNetworkInterfaceInitialise( void ) { -EMAC_CFG_Type Emac_Config; portBASE_TYPE xReturn; extern uint8_t ucMACAddress[ 6 ]; - Emac_Config.pbEMAC_Addr = ucMACAddress; - xReturn = EMAC_Init( &Emac_Config ); + xReturn = xEMACInit( ucMACAddress ); if( xReturn == pdPASS ) { - LPC_ETHERNET->DMA_INT_EN = DMA_INT_NOR_SUM | DMA_INT_RECEIVE; - /* Create the event semaphore if it has not already been created. */ if( xEMACRxEventSemaphore == NULL ) { @@ -121,25 +118,19 @@ extern uint8_t ucMACAddress[ 6 ]; vTraceSetQueueName( xEMACRxEventSemaphore, "MAC_RX" ); } #endif /* ipconfigINCLUDE_EXAMPLE_FREERTOS_PLUS_TRACE_CALLS == 1 */ - } - configASSERT( xEMACRxEventSemaphore ); - - /* The Rx deferred interrupt handler task is created at the highest - possible priority to ensure the interrupt handler can return directly to - it no matter which task was running when the interrupt occurred. */ - xTaskCreate( prvEMACDeferredInterruptHandlerTask, /* The function that implements the task. */ - ( const signed char * const ) "MACTsk", - configMINIMAL_STACK_SIZE, /* Stack allocated to the task (defined in words, not bytes). */ - NULL, /* The task parameter is not used. */ - configMAX_PRIORITIES - 1, /* The priority assigned to the task. */ - NULL ); /* The handle is not required, so NULL is passed. */ - - /* Enable the interrupt and set its priority as configured. THIS - DRIVER REQUIRES configMAC_INTERRUPT_PRIORITY TO BE DEFINED, PREFERABLY - IN FreeRTOSConfig.h. */ - NVIC_SetPriority( ETHERNET_IRQn, configMAC_INTERRUPT_PRIORITY ); - NVIC_EnableIRQ( ETHERNET_IRQn ); + configASSERT( xEMACRxEventSemaphore ); + + /* The Rx deferred interrupt handler task is created at the highest + possible priority to ensure the interrupt handler can return directly to + it no matter which task was running when the interrupt occurred. */ + xTaskCreate( prvEMACDeferredInterruptHandlerTask,/* The function that implements the task. */ + ( const signed char * const ) "MACTsk", + configMINIMAL_STACK_SIZE, /* Stack allocated to the task (defined in words, not bytes). */ + NULL, /* The task parameter is not used. */ + configMAX_PRIORITIES - 1, /* The priority assigned to the task. */ + NULL ); /* The handle is not required, so NULL is passed. */ + } } return xReturn; @@ -154,10 +145,10 @@ int32_t x; /* Attempt to obtain access to a Tx descriptor. */ for( x = 0; x < niMAX_TX_ATTEMPTS; x++ ) { - if( EMAC_CheckTransmitIndex() == TRUE ) + if( xEMACIsTxDescriptorAvailable() == TRUE ) { /* Assign the buffer being transmitted to the Tx descriptor. */ - EMAC_SetNextPacketToSend( pxNetworkBuffer->pucEthernetBuffer ); + vEMACAssignBufferToDescriptor( pxNetworkBuffer->pucEthernetBuffer ); /* The EMAC now owns the buffer and will free it when it has been transmitted. Set pucBuffer to NULL to ensure the buffer is not @@ -166,7 +157,7 @@ int32_t x; pxNetworkBuffer->pucEthernetBuffer = NULL; /* Initiate the Tx. */ - EMAC_StartTransmitNextBuffer( pxNetworkBuffer->xDataLength ); + vEMACStartNextTransmission( pxNetworkBuffer->xDataLength ); iptraceNETWORK_INTERFACE_TRANSMIT(); /* The Tx has been initiated. */ @@ -188,36 +179,6 @@ int32_t x; } /*-----------------------------------------------------------*/ -void ETH_IRQHandler( void ) -{ -uint32_t ulInterruptCause; - - ulInterruptCause = LPC_ETHERNET->DMA_STAT ; - - /* Clear the interrupt. */ - LPC_ETHERNET->DMA_STAT |= ( DMA_INT_NOR_SUM | DMA_INT_RECEIVE ); - - /* 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 & ( 1 << 13 ) ) != 0U ) - { - LPC_ETHERNET->DMA_STAT |= ( 1 << 13 ); - } - - /* Unblock the deferred interrupt handler task if the event was an Rx. */ - if( ( ulInterruptCause & DMA_INT_RECEIVE ) != 0UL ) - { - xSemaphoreGiveFromISR( xEMACRxEventSemaphore, NULL ); - } - - /* ulInterruptCause is used for convenience here. A context switch is - wanted, but coding portEND_SWITCHING_ISR( 1 ) would likely result in a - compiler warning. */ - portEND_SWITCHING_ISR( ulInterruptCause ); -} -/*-----------------------------------------------------------*/ - static void prvEMACDeferredInterruptHandlerTask( void *pvParameters ) { xNetworkBufferDescriptor_t *pxNetworkBuffer; @@ -237,7 +198,7 @@ xIPStackEvent_t xRxEvent = { eEthernetRxEvent, NULL }; while( xSemaphoreTake( xEMACRxEventSemaphore, portMAX_DELAY ) == pdFALSE ); /* At least one packet has been received. */ - while( EMAC_CheckReceiveIndex() != FALSE ) + while( xEMACRxDataAvailable() != FALSE ) { /* The buffer filled by the DMA is going to be passed into the IP stack. Allocate another buffer for the DMA descriptor. */ @@ -250,7 +211,7 @@ xIPStackEvent_t xRxEvent = { eEthernetRxEvent, NULL }; the DMA. pxNetworkBuffer will then hold a reference to the buffer that already contains the data without any data having been copied between buffers. */ - EMAC_NextPacketToRead( pxNetworkBuffer ); + vEMACSwapEmptyBufferForRxedData( pxNetworkBuffer ); #if ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES == 1 { @@ -304,7 +265,7 @@ xIPStackEvent_t xRxEvent = { eEthernetRxEvent, NULL }; } /* Release the descriptor. */ - EMAC_UpdateRxConsumeIndex(); + vEMACReturnRxDescriptor(); } } } diff --git a/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_43xx_EMAC_LPCOpen.c b/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_43xx_EMAC_LPCOpen.c new file mode 100644 index 000000000..c6e286ed0 --- /dev/null +++ b/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_43xx_EMAC_LPCOpen.c @@ -0,0 +1,339 @@ +/* + * FreeRTOS+UDP V1.0.0 (C) 2013 Real Time Engineers ltd. + * + * This file is part of the FreeRTOS+UDP distribution. The FreeRTOS+UDP license + * terms are different to the FreeRTOS license terms. + * + * FreeRTOS+UDP uses a dual license model that allows the software to be used + * under a standard GPL open source license, or a commercial license. The + * standard GPL license (unlike the modified GPL license under which FreeRTOS + * itself is distributed) requires that all software statically linked with + * FreeRTOS+UDP is also distributed under the same GPL V2 license terms. + * Details of both license options follow: + * + * - Open source licensing - + * FreeRTOS+UDP is a free download and may be used, modified, evaluated 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 that for commercial or other reasons cannot comply + * with the terms of the GPL V2 license must obtain a commercial license before + * incorporating FreeRTOS+UDP into proprietary software for distribution in any + * form. Commercial licenses can be purchased from http://shop.freertos.org/udp + * 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 + * + */ + +/* FreeRTOS includes. */ +#include "FreeRTOS.h" +#include "task.h" +#include "semphr.h" + +/* FreeRTOS+UDP includes. */ +#include "FreeRTOS_UDP_IP.h" +#include "FreeRTOS_IP_Private.h" +#include "NetworkBufferManagement.h" + +/* Library includes. */ +#include "board.h" + +/* Descriptors that reference received buffers are expected to have both the +first and last frame bits set because buffers are dimensioned to hold complete +Ethernet frames. */ +#define emacEXPECTED_RX_STATUS_MASK ( RDES_LS | RDES_FS ) + +/*-----------------------------------------------------------*/ + +/* + * Set the Rx and Tx descriptors into their expected initial state. + */ +static void prvResetRxDescriptors( void ); +static void prvResetTxDescriptors( void ); + +/* + * Returns the length of the data pointed to by the next Rx descriptor. + */ +static uint32_t prvReceivedDataLength( void ); + + +/*-----------------------------------------------------------*/ + +/* Rx and Tx descriptors and data array. */ +static volatile IP_ENET_001_ENHRXDESC_T xRXDescriptors[ configNUM_RX_ETHERNET_DMA_DESCRIPTORS ]; +static volatile IP_ENET_001_ENHTXDESC_T xTxDescriptors[ configNUM_TX_ETHERNET_DMA_DESCRIPTORS ]; + +/* Indexes into the Rx and Tx descriptor arrays. */ +static unsigned int xRxDescriptorIndex = 0; +static unsigned int xTxDescriptorIndex = 0; + +/*-----------------------------------------------------------*/ + +portBASE_TYPE xEMACInit( uint8_t ucMACAddress[ 6 ] ) +{ +portBASE_TYPE xReturn; +uint32_t ulPHYStatus; + + /* Configure the hardware. */ + Chip_ENET_Init( LPC_ETHERNET ); + + if( lpc_phy_init( pdTRUE, vTaskDelay ) == SUCCESS ) + { + /* The MAC address is passed in as the function parameter. */ + Chip_ENET_SetADDR( LPC_ETHERNET, ucMACAddress ); + + /* Wait for autonegotiation to complete. */ + do + { + vTaskDelay( 100 ); + ulPHYStatus = lpcPHYStsPoll(); + } while( ( ulPHYStatus & PHY_LINK_CONNECTED ) == 0x00 ); + + /* Configure the hardware as per the negotiated link. */ + if( ( ulPHYStatus & PHY_LINK_FULLDUPLX ) == PHY_LINK_FULLDUPLX ) + { + IP_ENET_SetDuplex( LPC_ETHERNET, pdTRUE ); + } + else + { + IP_ENET_SetDuplex( LPC_ETHERNET, pdFALSE ); + } + + if( ( ulPHYStatus & PHY_LINK_SPEED100 ) == PHY_LINK_SPEED100 ) + { + IP_ENET_SetSpeed( LPC_ETHERNET, pdTRUE ); + } + else + { + IP_ENET_SetSpeed( LPC_ETHERNET, pdFALSE ); + } + + /* Set descriptors to their initial state. */ + prvResetRxDescriptors(); + prvResetTxDescriptors(); + + /* Enable RX and TX. */ + Chip_ENET_TXEnable( LPC_ETHERNET ); + Chip_ENET_RXEnable( LPC_ETHERNET ); + + /* Enable the interrupt and set its priority as configured. THIS + DRIVER REQUIRES configMAC_INTERRUPT_PRIORITY TO BE DEFINED, PREFERABLY + IN FreeRTOSConfig.h. */ + NVIC_SetPriority( ETHERNET_IRQn, configMAC_INTERRUPT_PRIORITY ); + NVIC_EnableIRQ( ETHERNET_IRQn ); + + /* Enable interrupts. */ + LPC_ETHERNET->DMA_INT_EN = DMA_IE_NIE | DMA_IE_RIE; + + xReturn = pdPASS; + } + else + { + xReturn = pdFAIL; + } + + return xReturn; +} +/*-----------------------------------------------------------*/ + +portBASE_TYPE xEMACIsTxDescriptorAvailable( void ) +{ +portBASE_TYPE xReturn; + + if( ( xTxDescriptors[ xTxDescriptorIndex ].CTRLSTAT & RDES_OWN ) == 0 ) + { + xReturn = pdPASS; + } + else + { + xReturn = pdFAIL; + } + + return xReturn; +} +/*-----------------------------------------------------------*/ + +void vEMACAssignBufferToDescriptor( uint8_t * pucBuffer ) +{ + /* The old packet is now finished with and can be freed. */ + vEthernetBufferRelease( ( void * ) xTxDescriptors[ xTxDescriptorIndex ].B1ADD ); + + /* Assign the new packet to the descriptor. */ + xTxDescriptors[ xTxDescriptorIndex ].B1ADD = ( uint32_t ) pucBuffer; +} +/*-----------------------------------------------------------*/ + +void vEMACStartNextTransmission( uint32_t ulLength ) +{ + xTxDescriptors[ xTxDescriptorIndex ].BSIZE = ulLength; + xTxDescriptors[ xTxDescriptorIndex ].CTRLSTAT |= RDES_OWN; + + /* Wake Up the DMA if it's in Suspended Mode. */ + LPC_ETHERNET->DMA_TRANS_POLL_DEMAND = 1; + xTxDescriptorIndex++; + + if( xTxDescriptorIndex == configNUM_TX_ETHERNET_DMA_DESCRIPTORS ) + { + xTxDescriptorIndex = 0; + } +} +/*-----------------------------------------------------------*/ + +static uint32_t prvReceivedDataLength( void ) +{ +unsigned short RxLen = 0; + + RxLen = ( xRXDescriptors[ xRxDescriptorIndex ].STATUS >> 16 ) & 0x03FFF; + return RxLen; +} +/*-----------------------------------------------------------*/ + +void vEMACReturnRxDescriptor( void ) +{ + xRXDescriptors[ xRxDescriptorIndex ].STATUS = RDES_OWN; + xRxDescriptorIndex++; + + if( xRxDescriptorIndex == configNUM_RX_ETHERNET_DMA_DESCRIPTORS ) + { + xRxDescriptorIndex = 0; + } +} +/*-----------------------------------------------------------*/ + +portBASE_TYPE xEMACRxDataAvailable( void ) +{ +portBASE_TYPE xReturn; + + if( ( xRXDescriptors[ xRxDescriptorIndex ].STATUS & RDES_OWN ) == 0 ) + { + xReturn = pdPASS; + } + else + { + xReturn = pdFAIL; + } + + return xReturn; +} +/*-----------------------------------------------------------*/ + +void vEMACSwapEmptyBufferForRxedData( xNetworkBufferDescriptor_t *pxNetworkBuffer ) +{ +uint8_t *pucTemp; + + /* Swap the buffer in the network buffer with the buffer used by the DMA. + This allows the data to be passed out without having to perform any copies. */ + pucTemp = ( uint8_t * ) xRXDescriptors[ xRxDescriptorIndex ].B1ADD; + xRXDescriptors[ xRxDescriptorIndex ].B1ADD = ( uint32_t ) pxNetworkBuffer->pucEthernetBuffer; + pxNetworkBuffer->pucEthernetBuffer = pucTemp; + + /* Only supports frames coming in single buffers. If this frame is split + across multiple buffers then reject it (and if the frame is needed increase + the ipconfigNETWORK_MTU setting). */ + if( ( xRXDescriptors[ xRxDescriptorIndex ].STATUS & emacEXPECTED_RX_STATUS_MASK ) != emacEXPECTED_RX_STATUS_MASK ) + { + pxNetworkBuffer->xDataLength = 0; + } + else + { + pxNetworkBuffer->xDataLength = ( size_t ) prvReceivedDataLength() - ( ipETHERNET_CRC_BYTES - 1U );; + } +} +/*-----------------------------------------------------------*/ + +static void prvResetRxDescriptors( void ) +{ +uint32_t x; +size_t xBufferSize = ipTOTAL_ETHERNET_FRAME_SIZE; + + for( x = 0; x < configNUM_RX_ETHERNET_DMA_DESCRIPTORS; x++ ) + { + /* Obtain the buffer first, as the size of the buffer might be changed + within the pucEthernetBufferGet() call. */ + xRXDescriptors[ x ].B1ADD = ( uint32_t ) pucEthernetBufferGet( &xBufferSize ); + xRXDescriptors[ x ].STATUS = RDES_OWN; + xRXDescriptors[ x ].CTRL = xBufferSize; + xRXDescriptors[ x ].B2ADD = ( uint32_t ) &xRXDescriptors[ x + 1 ]; + + configASSERT( ( ( ( uint32_t ) xRXDescriptors[x].B1ADD ) & 0x07 ) == 0 ); + } + + /* Last Descriptor */ + xRXDescriptors[ configNUM_RX_ETHERNET_DMA_DESCRIPTORS - 1 ].CTRL |= RDES_ENH_RER; + + xRxDescriptorIndex = 0; + + /* Set Starting address of RX Descriptor list */ + LPC_ETHERNET->DMA_REC_DES_ADDR = ( uint32_t ) xRXDescriptors; +} +/*-----------------------------------------------------------*/ + +static void prvResetTxDescriptors( void ) +{ +/* Initialize Transmit Descriptor and Status array. */ +uint32_t x; + + for( x = 0; x < configNUM_TX_ETHERNET_DMA_DESCRIPTORS; x++ ) + { + xTxDescriptors[ x ].CTRLSTAT = TDES_ENH_FS | TDES_ENH_LS; + xTxDescriptors[ x ].BSIZE = 0; + xTxDescriptors[ x ].B2ADD = ( uint32_t ) &xTxDescriptors[ x + 1 ]; + + /* Packet is assigned when a Tx is initiated. */ + xTxDescriptors[ x ].B1ADD = ( uint32_t )NULL; + } + + /* Last Descriptor? */ + xTxDescriptors[ configNUM_TX_ETHERNET_DMA_DESCRIPTORS-1 ].CTRLSTAT |= TDES_ENH_TER; + + /* Set Starting address of TX Descriptor list */ + LPC_ETHERNET->DMA_TRANS_DES_ADDR = ( uint32_t ) xTxDescriptors; +} +/*-----------------------------------------------------------*/ + +void ETH_IRQHandler( void ) +{ +uint32_t ulInterruptCause; +extern xSemaphoreHandle xEMACRxEventSemaphore; + + configASSERT( xEMACRxEventSemaphore ); + + ulInterruptCause = LPC_ETHERNET->DMA_STAT ; + + /* Clear the interrupt. */ + LPC_ETHERNET->DMA_STAT |= ( DMA_ST_NIS | DMA_ST_RI ); + + /* 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 & DMA_ST_FBI ) != 0U ) + { + LPC_ETHERNET->DMA_STAT |= DMA_ST_FBI; + } + + /* Unblock the deferred interrupt handler task if the event was an Rx. */ + if( ( ulInterruptCause & DMA_IE_RIE ) != 0UL ) + { + xSemaphoreGiveFromISR( xEMACRxEventSemaphore, NULL ); + } + + /* ulInterruptCause is used for convenience here. A context switch is + wanted, but coding portEND_SWITCHING_ISR( 1 ) would likely result in a + compiler warning. */ + portEND_SWITCHING_ISR( ulInterruptCause ); +} + diff --git a/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_43xx_EMAC_LPCOpen.h b/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_43xx_EMAC_LPCOpen.h new file mode 100644 index 000000000..093d642dc --- /dev/null +++ b/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_43xx_EMAC_LPCOpen.h @@ -0,0 +1,83 @@ +/* + * FreeRTOS+UDP V1.0.0 (C) 2013 Real Time Engineers ltd. + * + * This file is part of the FreeRTOS+UDP distribution. The FreeRTOS+UDP license + * terms are different to the FreeRTOS license terms. + * + * FreeRTOS+UDP uses a dual license model that allows the software to be used + * under a standard GPL open source license, or a commercial license. The + * standard GPL license (unlike the modified GPL license under which FreeRTOS + * itself is distributed) requires that all software statically linked with + * FreeRTOS+UDP is also distributed under the same GPL V2 license terms. + * Details of both license options follow: + * + * - Open source licensing - + * FreeRTOS+UDP is a free download and may be used, modified, evaluated 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 that for commercial or other reasons cannot comply + * with the terms of the GPL V2 license must obtain a commercial license before + * incorporating FreeRTOS+UDP into proprietary software for distribution in any + * form. Commercial licenses can be purchased from http://shop.freertos.org/udp + * 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 + * + */ + +#ifndef LPC18xx_43xx_EMAC_H +#define LPC18xx_43xx_EMAC_H + +/* + * Initialise the MAC and PHY. + */ +portBASE_TYPE xEMACInit( uint8_t ucMACAddress[ 6 ] ); + +/* + * Return pdTRUE if there is a FreeRTOS Tx descriptor. Return pdFALSE if all + * Tx descriptors are already in use. + */ +portBASE_TYPE xEMACIsTxDescriptorAvailable( void ); + +/* + * Assign a buffer to a Tx descriptor so it is ready to be transmitted, but + * don't start the transmission yet. + */ +void vEMACAssignBufferToDescriptor( uint8_t * pucBuffer ); + +/* + * Start transmitting the buffer pointed to by the next Tx descriptor. The + * buffer must have first been allocated to the Tx descriptor using a call to + * vEMACAssignBufferToDescriptor(). + */ +void vEMACStartNextTransmission( uint32_t ulLength ); + +/* + * The data pointed to by the Rx descriptor has been consumed, and the Rx + * descriptor can be returned to the control of the DMS. + */ +void vEMACReturnRxDescriptor( void ); + +/* + * Returns pdTRUE if the next Rx descriptor contains received data. Returns + * pdFLASE fi the next Rx descriptor is still under the control of the DMA. + */ +portBASE_TYPE xEMACRxDataAvailable( void ); +void vEMACSwapEmptyBufferForRxedData( xNetworkBufferDescriptor_t *pxNetworkBuffer ); + +#endif /* LPC18xx_43xx_EMAC_H */ + diff --git a/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_emac.c b/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_emac.c deleted file mode 100644 index 5162f4d75..000000000 --- a/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_emac.c +++ /dev/null @@ -1,610 +0,0 @@ -/********************************************************************** -* Copyright(C) 2011, NXP Semiconductor -* All rights reserved. -* Heavily modified by Real Time Engineers ltd. -*********************************************************************** -* Software that is described herein is for illustrative purposes only -* which provides customers with programming information regarding the -* products. This software is supplied "AS IS" without any warranties. -* NXP Semiconductors assumes no responsibility or liability for the -* use of the software, conveys no license or title under any patent, -* copyright, or mask work right to the product. NXP Semiconductors -* reserves the right to make changes in the software without -* notification. NXP Semiconductors also make no representation or -* warranty that such application will be suitable for the specified -* use without further testing or modification. -**********************************************************************/ - -/* FreeRTOS includes. */ -#include "FreeRTOS.h" -#include "task.h" - -/* FreeRTOS+UDP includes. */ -#include "FreeRTOS_UDP_IP.h" -#include "FreeRTOS_IP_Private.h" -#include "NetworkBufferManagement.h" - -/* Library includes. */ -#include "lpc18xx_emac.h" -#include "lpc18xx_rgu.h" -#include "lpc18xx_scu.h" -#include "lpc18xx_gpio.h" - - -#define emacTIMEOUT_DELAY ( 2 ) -#define emacNEGOTIATE_DELAY ( 10 / portTICK_RATE_MS ) - -#define emacEXPECTED_RX_STATUS_MASK ( RX_FIRST_SEGM | RX_LAST_SEGM ) - -/* Rx descriptors and data array. */ -static volatile RX_Desc Rx_Desc[ configNUM_RX_ETHERNET_DMA_DESCRIPTORS ]; -static unsigned int RxDescIndex = 0; - -/** Rx Status data array - Must be 8-Byte aligned */ -#if defined ( __CC_ARM ) - static __align(8) RX_Stat Rx_Stat[ configNUM_RX_ETHERNET_DMA_DESCRIPTORS ]; -#elif defined ( __ICCARM__ ) - #pragma data_alignment=8 - static RX_Stat Rx_Stat[ configNUM_RX_ETHERNET_DMA_DESCRIPTORS ]; -#elif defined ( __GNUC__ ) - static volatile __attribute__ ((aligned (8))) RX_Stat Rx_Stat[ configNUM_RX_ETHERNET_DMA_DESCRIPTORS ]; -#endif - -/* Tx descriptors and status array. */ -static volatile TX_Desc Tx_Desc[ configNUM_TX_ETHERNET_DMA_DESCRIPTORS ]; -static volatile TX_Stat Tx_Stat[ configNUM_TX_ETHERNET_DMA_DESCRIPTORS ]; -static unsigned int TxDescIndex = 0; - -/* Private Functions ---------------------------------------------------------- */ -static void rx_descr_init( void ); -static void tx_descr_init( void ); -static int32_t write_PHY( uint32_t PhyReg, uint16_t Value ); -static int32_t read_PHY( uint32_t PhyReg ); -static void setEmacAddr( uint8_t abStationAddr[] ); - -/*********************************************************************//** - * @brief Initializes the EMAC peripheral according to the specified - * parameters in the EMAC_ConfigStruct. - * @param[in] EMAC_ConfigStruct Pointer to a EMAC_CFG_Type structure - * that contains the configuration information for the - * specified EMAC peripheral. - * @return None - * - * Note: This function will initialize EMAC module according to procedure below: - * - Remove the soft reset condition from the MAC - * - Configure the PHY via the MIIM interface of the MAC - * - Select RMII mode - * - Configure the transmit and receive DMA engines, including the descriptor arrays - * - Configure the host registers (MAC1,MAC2 etc.) in the MAC - * - Enable the receive and transmit data paths - * In default state after initializing, only Rx Done and Tx Done interrupt are enabled, - * all remain interrupts are disabled - * (Ref. from LPC17xx UM) - **********************************************************************/ -portBASE_TYPE EMAC_Init(EMAC_CFG_Type *EMAC_ConfigStruct) -{ -int32_t id1, id2, regv, phy = 0; -int32_t phy_linkstatus_reg, phy_linkstatus_mask; -uint32_t x; -const uint32_t ulMaxAttempts = 250UL; -portBASE_TYPE xReturn = pdPASS; - - /* Enable Ethernet Pins (NGX LPC1830 Xplorer. */ - scu_pinmux(0x2 ,0 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC7); - scu_pinmux(0x1 ,17 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); - scu_pinmux(0x1 ,18 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); - scu_pinmux(0x1 ,20 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); - scu_pinmux(0x1 ,19 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC0); - scu_pinmux(0x0 ,1 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC6); - scu_pinmux(0x1 ,15 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); - scu_pinmux(0x0 ,0 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC2); - scu_pinmux(0x1 ,16 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); - scu_pinmux(0xC ,9 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); - scu_pinmux(0x1 ,16 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC7); - - /* Ethernet RESET Pins */ - scu_pinmux(0x1 ,0 , MD_PUP, FUNC0); - GPIO_SetDir(0,(1<<4), 1); - GPIO_SetValue(0,(1<<4)); - - - #if MII /* Select MII interface */ // check MUXING for new Eagle... - scu_pinmux(0xC ,6 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_RXD2: PC_6 -> FUNC3 - scu_pinmux(0xC ,7 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_RXD3: PC_7 -> FUNC3 - scu_pinmux(0xC ,0 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_RXLK: PC_0 -> FUNC3 - scu_pinmux(0xC ,2 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_TXD2: PC_2 -> FUNC3 - scu_pinmux(0xC ,3 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_TXD3: PC_3 -> FUNC3 - scu_pinmux(0xC ,5 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_TX_ER: PC_5 -> FUNC3 - scu_pinmux(0x0 ,1 , (MD_PLN | MD_EZI | MD_ZI), FUNC2); // ENET_COL: P0_1 -> FUNC2 - #else /* Select RMII interface */ - LPC_CREG->CREG6 |= RMII_SELECT; - #endif - - - RGU_SoftReset( RGU_SIG_ETHERNET ); - - /* Wait for reset. */ - while( !( LPC_RGU->RESET_ACTIVE_STATUS0 & ( 1 << ETHERNET_RST ) ) ) - { - vTaskDelay( emacTIMEOUT_DELAY ); - } - - /* Reset all GMAC Subsystem internal registers and logic. */ - LPC_ETHERNET->DMA_BUS_MODE |= DMA_SOFT_RESET; - - /* Wait for software reset completion. */ - while( LPC_ETHERNET->DMA_BUS_MODE & DMA_SOFT_RESET ) - { - vTaskDelay( emacTIMEOUT_DELAY ); - } - - /* Put the PHY in reset mode */ - write_PHY( PHY_REG_BMCR, PHY_BMCR_RESET ); - - /* Wait for hardware reset to end. */ - for( x = 0; x < ulMaxAttempts; x++ ) - { - regv = read_PHY (PHY_REG_BMCR); - if( !( regv & PHY_BMCR_RESET ) ) - { - /* Reset complete */ - break; - } - else - { - vTaskDelay( emacTIMEOUT_DELAY ); - } - } - - if( x == ulMaxAttempts ) - { - xReturn = pdFAIL; - } - - /* Check if this is a DP83848C PHY. */ - id1 = read_PHY( PHY_REG_IDR1 ); - id2 = read_PHY( PHY_REG_IDR2 ); - if( ( ( id1 << 16 ) | ( id2 & 0xFFF0 ) ) == DP83848C_ID ) - { - phy = DP83848C_ID; - } - else if( ( ( id1 << 16 ) | id2 ) == LAN8720_ID ) - { - phy = LAN8720_ID; - } - - if( phy != 0 ) - { - /* Use autonegotiation about the link speed. */ - write_PHY( PHY_REG_BMCR, PHY_AUTO_NEG ); - - /* Wait to complete Auto_Negotiation. */ - for( x = 0; x < ulMaxAttempts; x++ ) - { - regv = read_PHY( PHY_REG_BMSR ); - - if( ( regv & PHY_AUTO_NEG_DONE ) != 0 ) - { - /* Auto negotiation Complete. */ - break; - } - else - { - vTaskDelay( emacNEGOTIATE_DELAY ); - } - } - - if( x == ulMaxAttempts ) - { - xReturn = pdFAIL; - } - } - else - { - xReturn = pdFAIL; - } - - - if( xReturn == pdPASS ) - { - /* Default to DP83848C. */ - phy_linkstatus_reg = PHY_REG_STS; - phy_linkstatus_mask = 0x0001; - - if( phy == LAN8720_ID ) - { - phy_linkstatus_reg = PHY_REG_BMSR; - phy_linkstatus_mask = 0x0004; - } - - /* Check the link status. */ - for( x = 0; x < ulMaxAttempts; x++ ) - { - regv = read_PHY( phy_linkstatus_reg ); - - if( ( regv & phy_linkstatus_mask ) != 0 ) - { - /* Link is on. */ - break; - } - else - { - vTaskDelay( emacNEGOTIATE_DELAY ); - } - } - - if( x == ulMaxAttempts ) - { - xReturn = pdFAIL; - } - - regv = read_PHY( PHY_REG_SPCON ); - regv &= PHY_REG_HCDSPEED_MASK; - - /* Configure 100MBit/10MBit mode and Full/Half Duplex mode. */ - switch( regv ) - { - case PHY_REG_HCDSPEED_10MB_FULLD: - LPC_ETHERNET->MAC_CONFIG |= MAC_DUPMODE; - break; - - case PHY_REG_HCDSPEED_100MB_HALFD: - LPC_ETHERNET->MAC_CONFIG |= MAC_100MPS; - break; - - case PHY_REG_HCDSPEED_100MB_FULLD: - LPC_ETHERNET->MAC_CONFIG |= MAC_DUPMODE; - LPC_ETHERNET->MAC_CONFIG |= MAC_100MPS; - break; - - default: - break; - } - - /* Set the Ethernet MAC Address registers */ - setEmacAddr( EMAC_ConfigStruct->pbEMAC_Addr ); - - /* Initialize Descriptor Lists */ - rx_descr_init(); - tx_descr_init(); - - /* Configure Filter - LPC_ETHERNET->MAC_FRAME_FILTER is left at its default value. - MAC_PROMISCUOUS and MAC_RECEIVEALL can be set if required. */ - - /* Enable Receiver and Transmitter */ - LPC_ETHERNET->MAC_CONFIG |= (MAC_TX_ENABLE | MAC_RX_ENABLE); - - /* Enable interrupts */ - LPC_ETHERNET->DMA_INT_EN = DMA_INT_NOR_SUM | DMA_INT_RECEIVE ; - - /* Start Transmission & Receive processes */ - LPC_ETHERNET->DMA_OP_MODE |= (DMA_SS_TRANSMIT | DMA_SS_RECEIVE ); - } - - return xReturn; -} - -/*********************************************************************//** - **********************************************************************/ -portBASE_TYPE EMAC_CheckTransmitIndex( void ) -{ -portBASE_TYPE xReturn; - - if( ( Tx_Desc[ TxDescIndex ].Status & OWN_BIT ) == 0 ) - { - xReturn = pdPASS; - } - else - { - xReturn = pdFAIL; - } - - return xReturn; -} - -/*********************************************************************//** - * @brief EMAC_SetNextPacketToSend - * @param[in] pucBuffer - * @return None - ***********************************************************************/ -void EMAC_SetNextPacketToSend( uint8_t * pucBuffer ) -{ - /* The old packet is now finished with and can be freed. */ - vEthernetBufferRelease( ( void * ) Tx_Desc[ TxDescIndex ].Packet ); - - /* Assign the new packet to the descriptor. */ - Tx_Desc[ TxDescIndex ].Packet = ( uint32_t ) pucBuffer; -} - -void EMAC_StartTransmitNextBuffer( uint32_t ulLength ) -{ - Tx_Desc[ TxDescIndex ].Ctrl = ulLength; - Tx_Desc[ TxDescIndex ].Status |= OWN_BIT; - - /* Wake Up the DMA if it's in Suspended Mode. */ - LPC_ETHERNET->DMA_TRANS_POLL_DEMAND = 1; - TxDescIndex++; - - if( TxDescIndex == configNUM_TX_ETHERNET_DMA_DESCRIPTORS ) - { - TxDescIndex = 0; - } -} - -/*********************************************************************//** - * @brief Get size of current Received data in received buffer (due to - * RxConsumeIndex) - * @param[in] None - * @return Size of received data - **********************************************************************/ -uint32_t EMAC_GetReceiveDataSize(void) -{ -unsigned short RxLen = 0; - - RxLen = ( Rx_Desc[ RxDescIndex ].Status >> 16 ) & 0x03FFF; - return RxLen; -} - -/*********************************************************************//** - * @brief Increase the RxConsumeIndex (after reading the Receive buffer - * to release the Receive buffer) and wrap-around the index if - * it reaches the maximum Receive Number - * @param[in] None - * @return None - **********************************************************************/ -void EMAC_UpdateRxConsumeIndex( void ) -{ - Rx_Desc[ RxDescIndex ].Status = OWN_BIT; - RxDescIndex++; - - if( RxDescIndex == configNUM_RX_ETHERNET_DMA_DESCRIPTORS ) - { - RxDescIndex = 0; - } -} - -/*********************************************************************//** - * @brief Check whether if the current RxConsumeIndex is not equal to the - * current RxProduceIndex. - * @param[in] None - * @return TRUE if they're not equal, otherwise return FALSE - * - * Note: In case the RxConsumeIndex is not equal to the RxProduceIndex, - * it means there're available data has been received. They should be read - * out and released the Receive Data Buffer by updating the RxConsumeIndex value. - **********************************************************************/ -portBASE_TYPE EMAC_CheckReceiveIndex(void) -{ -portBASE_TYPE xReturn; - - if( ( Rx_Desc[ RxDescIndex ].Status & OWN_BIT ) == 0 ) - { - xReturn = pdPASS; - } - else - { - xReturn = pdFAIL; - } - - return xReturn; -} - -void EMAC_NextPacketToRead( xNetworkBufferDescriptor_t *pxNetworkBuffer ) -{ -uint8_t *pucTemp; - - /* Swap the buffer in the network buffer with the buffer used by the DMA. - This allows the data to be passed out without having to perform any copies. */ - pucTemp = ( uint8_t * ) Rx_Desc[ RxDescIndex ].Packet; - Rx_Desc[ RxDescIndex ].Packet = ( uint32_t ) pxNetworkBuffer->pucEthernetBuffer; - pxNetworkBuffer->pucEthernetBuffer = pucTemp; - - /* Only supports frames coming in single buffers. If this frame is split - across multiple buffers then reject it (and if the frame is needed increase - the ipconfigNETWORK_MTU setting). */ - if( ( Rx_Desc[ RxDescIndex ].Status & emacEXPECTED_RX_STATUS_MASK ) != emacEXPECTED_RX_STATUS_MASK ) - { - pxNetworkBuffer->xDataLength = 0; - } - else - { - pxNetworkBuffer->xDataLength = ( size_t ) EMAC_GetReceiveDataSize() - ( ipETHERNET_CRC_BYTES - 1U );; - } -} - -/*********************************************************************//** - * @brief Initializes RX Descriptor - * @param[in] None - * @return None - ***********************************************************************/ -static void rx_descr_init( void ) -{ -uint32_t x; -size_t xBufferSize = ipTOTAL_ETHERNET_FRAME_SIZE; - - for( x = 0; x < configNUM_RX_ETHERNET_DMA_DESCRIPTORS; x++ ) - { - /* Obtain the buffer first, as the size of the buffer might be changed - within the pucEthernetBufferGet() call. */ - Rx_Desc[ x ].Packet = ( uint32_t ) pucEthernetBufferGet( &xBufferSize ); - Rx_Desc[ x ].Status = OWN_BIT; - Rx_Desc[ x ].Ctrl = xBufferSize; - Rx_Desc[ x ].NextDescripter = ( uint32_t ) &Rx_Desc[ x + 1 ]; - - configASSERT( ( ( ( uint32_t ) Rx_Desc[x].Packet ) & 0x07 ) == 0 ); - } - - /* Last Descriptor */ - Rx_Desc[ configNUM_RX_ETHERNET_DMA_DESCRIPTORS - 1 ].Ctrl |= RX_END_RING; - - RxDescIndex = 0; - - /* Set Starting address of RX Descriptor list */ - LPC_ETHERNET->DMA_REC_DES_ADDR = ( uint32_t ) Rx_Desc; -} - -/*********************************************************************//** - * @brief Initializes TX Descriptor - * @param[in] None - * @return None - ***********************************************************************/ -static void tx_descr_init( void ) -{ -/* Initialize Transmit Descriptor and Status array. */ -uint32_t x; - - for( x = 0; x < configNUM_TX_ETHERNET_DMA_DESCRIPTORS; x++ ) - { - Tx_Desc[ x ].Status = TX_LAST_SEGM | TX_FIRST_SEGM; - Tx_Desc[ x ].Ctrl = 0; - Tx_Desc[ x ].NextDescripter = ( uint32_t ) &Tx_Desc[ x + 1 ]; - - /* Packet is assigned when a Tx is initiated. */ - Tx_Desc[ x ].Packet = ( uint32_t )NULL; - } - - /* Last Descriptor? */ - Tx_Desc[ configNUM_TX_ETHERNET_DMA_DESCRIPTORS-1 ].Status |= TX_END_RING; - - /* Set Starting address of TX Descriptor list */ - LPC_ETHERNET->DMA_TRANS_DES_ADDR = ( uint32_t ) Tx_Desc; -} - - -/*********************************************************************//** - * @brief Write value to PHY device - * @param[in] PhyReg: PHY Register address - * @param[in] Value: Value to write - * @return 0 - if success - * 1 - if fail - ***********************************************************************/ -static int32_t write_PHY (uint32_t PhyReg, uint16_t Value) -{ -uint32_t x; -const uint32_t ulMaxAttempts = 250UL; -int32_t lReturn = pdPASS; - - /* Write a data 'Value' to PHY register 'PhyReg'. */ - x = 0; - while( LPC_ETHERNET->MAC_MII_ADDR & GMII_BUSY ) - { - x++; - - if( x >= ulMaxAttempts ) - { - /* Time out. */ - lReturn = pdFAIL; - break; - } - else - { - /* GMII is busy. */ - vTaskDelay( emacTIMEOUT_DELAY ); - } - } - - if( lReturn == pdPASS ) - { - LPC_ETHERNET->MAC_MII_ADDR = ( DP83848C_DEF_ADR << 11 ) | ( PhyReg << 6 ) | GMII_WRITE; - LPC_ETHERNET->MAC_MII_DATA = Value; - - /* Start PHY Write Cycle. */ - LPC_ETHERNET->MAC_MII_ADDR |= GMII_BUSY; - - /* Wait untl operation completed. */ - for( x = 0; x < ulMaxAttempts; x++ ) - { - if( ( LPC_ETHERNET->MAC_MII_ADDR & GMII_BUSY ) == 0 ) - { - break; - } - else - { - vTaskDelay( emacTIMEOUT_DELAY ); - } - } - - if( x == ulMaxAttempts ) - { - /* Timeout. */ - lReturn = pdFAIL; - } - } - - return lReturn; -} - -/*********************************************************************//** - * @brief Read value from PHY device - * @param[in] PhyReg: PHY Register address - * @return 0 - if success - * 1 - if fail - ***********************************************************************/ -static int32_t read_PHY( uint32_t PhyReg ) -{ -int32_t lValue = 0; -uint32_t x; -const uint32_t ulMaxAttempts = 250UL; - - /* Write a data 'Value' to PHY register 'PhyReg'. */ - x = 0; - while( LPC_ETHERNET->MAC_MII_ADDR & GMII_BUSY ) - { - x++; - - if( x >= ulMaxAttempts ) - { - /* Time out. */ - break; - } - else - { - /* GMII is busy. */ - vTaskDelay( emacTIMEOUT_DELAY ); - } - } - - if( x < ulMaxAttempts ) - { - /* Read a PHY register 'PhyReg'. */ - LPC_ETHERNET->MAC_MII_ADDR = ( DP83848C_DEF_ADR << 11 ) | ( PhyReg << 6 ) | GMII_READ; - - /* Start PHY Read Cycle. */ - LPC_ETHERNET->MAC_MII_ADDR |= GMII_BUSY; - - /* Wait until operation completed */ - for( x = 0; x < ulMaxAttempts; x++ ) - { - if( ( LPC_ETHERNET->MAC_MII_ADDR & GMII_BUSY ) == 0 ) - { - break; - } - else - { - vTaskDelay( emacTIMEOUT_DELAY ); - } - } - - configASSERT( x != ulMaxAttempts ); - lValue = LPC_ETHERNET->MAC_MII_DATA; - } - - return lValue; -} - -/*********************************************************************//** - * @brief Set Station MAC address for EMAC module - * @param[in] abStationAddr Pointer to Station address that contains 6-bytes - * of MAC address (should be in order from MAC Address 1 to MAC Address 6) - * @return None - **********************************************************************/ -static void setEmacAddr( uint8_t abStationAddr[] ) -{ - /* Set the Ethernet MAC Address registers */ - LPC_ETHERNET->MAC_ADDR0_HIGH = (( uint32_t ) abStationAddr[ 5 ] << 8 ) | ( uint32_t )abStationAddr[ 4 ]; - LPC_ETHERNET->MAC_ADDR0_LOW = (( uint32_t )abStationAddr[ 3 ] << 24) | (( uint32_t )abStationAddr[ 2 ] << 16) | (( uint32_t )abStationAddr[ 1 ] << 8 ) | ( uint32_t )abStationAddr[ 0 ]; -} - - - diff --git a/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_emac.h b/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_emac.h deleted file mode 100644 index cc4444d7d..000000000 --- a/FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/LPC18xx/lpc18xx_emac.h +++ /dev/null @@ -1,238 +0,0 @@ -/***********************************************************************//** - * @file lpc17xx_emac.h - * @brief Contains all macro definitions and function prototypes - * support for Ethernet MAC firmware library on LPC17xx - * @version 2.0 - * @date 21. May. 2010 - * @author NXP MCU SW Application Team - ************************************************************************** - * Software that is described herein is for illustrative purposes only - * which provides customers with programming information regarding the - * products. This software is supplied "AS IS" without any warranties. - * NXP Semiconductors assumes no responsibility or liability for the - * use of the software, conveys no license or title under any patent, - * copyright, or mask work right to the product. NXP Semiconductors - * reserves the right to make changes in the software without - * notification. NXP Semiconductors also make no representation or - * warranty that such application will be suitable for the specified - * use without further testing or modification. - **************************************************************************/ - -/* Peripheral group ----------------------------------------------------------- */ -/** @defgroup EMAC EMAC - * @ingroup LPC1700CMSIS_FwLib_Drivers - * @{ - */ - -#ifndef LPC18XX_EMAC_H_ -#define LPC18XX_EMAC_H_ - -/* Includes ------------------------------------------------------------------- */ -#include "LPC18xx.h" - - - -#ifdef __cplusplus -extern "C" -{ -#endif - -#include "lpc_types.h" - -/* Configuration */ - -/* Interface Selection */ -#define MII 0 // =0 RMII - =1 MII - -/* End of Configuration */ - -/* Descriptors Fields bits */ -#define OWN_BIT (1U<<31) /* Own bit in RDES0 & TDES0 */ -#define RX_END_RING (1<<15) /* Receive End of Ring bit in RDES1 */ -#define RX_NXTDESC_FLAG (1<<14) /* Second Address Chained bit in RDES1 */ -#define TX_LAST_SEGM (1<<29) /* Last Segment bit in TDES0 */ -#define RX_LAST_SEGM (1<<9) -#define TX_FIRST_SEGM (1<<28) /* First Segment bit in TDES0 */ -#define RX_FIRST_SEGM (1<<8) /* First Segment bit in TDES0 */ -#define TX_END_RING (1<<21) /* Transmit End of Ring bit in TDES0 */ -#define TX_NXTDESC_FLAG (1<<20) /* Second Address Chained bit in TDES0 */ - -/* EMAC Memory Buffer configuration for 16K Ethernet RAM */ -#define EMAC_ETH_MAX_FLEN ipETHERNET_FRAME_SIZE_TO_USE - -/* NOTE: EMAC_NUM_RX_FRAG is not used by the example FreeRTOS drivers - use -configNUM_RX_ETHERNET_DMA_DESCRIPTORS. */ -#define EMAC_NUM_RX_FRAG 6 /**< Num.of RX Fragments */ - -/* NOTE: EMAC_NUM_TX_FRAG is not used by the example FreeRTOS drivers - use -configNUM_TX_ETHERNET_DMA_DESCRIPTORS. */ -#define EMAC_NUM_TX_FRAG 2 /**< Num.of TX Fragments */ - -/* EMAC Control and Status bits */ -#define MAC_RX_ENABLE (1<<2) /* Receiver Enable in MAC_CONFIG reg */ -#define MAC_TX_ENABLE (1<<3) /* Transmitter Enable in MAC_CONFIG reg */ -#define MAC_PADCRC_STRIP (1<<7) /* Automatic Pad-CRC Stripping in MAC_CONFIG reg */ -#define MAC_DUPMODE (1<<11) /* Duplex Mode in MAC_CONFIG reg */ -#define MAC_100MPS (1<<14) /* Speed is 100Mbps in MAC_CONFIG reg */ -#define MAC_PROMISCUOUS (1U<<0) /* Promiscuous Mode bit in MAC_FRAME_FILTER reg */ -#define MAC_DIS_BROAD (1U<<5) /* Disable Broadcast Frames bit in MAC_FRAME_FILTER reg */ -#define MAC_RECEIVEALL (1U<<31) /* Receive All bit in MAC_FRAME_FILTER reg */ -#define DMA_SOFT_RESET 0x01 /* Software Reset bit in DMA_BUS_MODE reg */ -#define DMA_SS_RECEIVE (1<<1) /* Start/Stop Receive bit in DMA_OP_MODE reg */ -#define DMA_SS_TRANSMIT (1<<13) /* Start/Stop Transmission bit in DMA_OP_MODE reg */ -#define DMA_INT_TRANSMIT (1<<0) /* Transmit Interrupt Enable bit in DMA_INT_EN reg */ -#define DMA_INT_OVERFLOW (1<<4) /* Overflow Interrupt Enable bit in DMA_INT_EN reg */ -#define DMA_INT_UNDERFLW (1<<5) /* Underflow Interrupt Enable bit in DMA_INT_EN reg */ -#define DMA_INT_RECEIVE (1<<6) /* Receive Interrupt Enable bit in DMA_INT_EN reg */ -#define DMA_INT_ABN_SUM (1<<15) /* Abnormal Interrupt Summary Enable bit in DMA_INT_EN reg */ -#define DMA_INT_NOR_SUM (1<<16) /* Normal Interrupt Summary Enable bit in DMA_INT_EN reg */ - -/* MII Management Command Register */ -#define GMII_READ (0<<1) /* GMII Read PHY */ -#define GMII_WRITE (1<<1) /* GMII Write PHY */ -#define GMII_BUSY 0x00000001 /* GMII is Busy / Start Read/Write */ -#define MII_WR_TOUT 0x00050000 /* MII Write timeout count */ -#define MII_RD_TOUT 0x00050000 /* MII Read timeout count */ - -/* MII Management Address Register */ -#define MADR_PHY_ADR 0x00001F00 /* PHY Address Mask */ - -/* LAN8720 PHY Registers */ -#define PHY_REG_BMCR 0x00 /* Basic Mode Control Register */ -#define PHY_REG_BMSR 0x01 /* Basic Mode Status Register */ -#define PHY_REG_IDR1 0x02 /* PHY Identifier 1 */ -#define PHY_REG_IDR2 0x03 /* PHY Identifier 2 */ -#define PHY_REG_ANAR 0x04 /* Auto-Negotiation Advertisement */ -#define PHY_REG_ANLPAR 0x05 /* Auto-Neg. Link Partner Abitily */ -#define PHY_REG_ANER 0x06 /* Auto-Neg. Expansion Register */ -#define PHY_REG_ANNPTR 0x07 /* Auto-Neg. Next Page TX */ - -/* LAN8720 PHY Speed identify */ -#define PHY_REG_SPCON 0x1f /* Speed indication Register */ -#define PHY_REG_HCDSPEED_MASK 0x1c /* Speed indication Register mask*/ -#define PHY_REG_HCDSPEED_10MB_HALFD 0x04 /* Speed is 10Mbps HALF-duplex */ -#define PHY_REG_HCDSPEED_10MB_FULLD 0x14 /* Speed is 10Mbps FULL-duplex */ -#define PHY_REG_HCDSPEED_100MB_HALFD 0x08 /* Speed is 100Mbps HALF-duplex */ -#define PHY_REG_HCDSPEED_100MB_FULLD 0x18 /* Speed is 100Mbps FULL-duplex */ - - -/* PHY Extended Registers */ -#define PHY_REG_STS 0x10 /* Status Register */ -#define PHY_REG_MICR 0x11 /* MII Interrupt Control Register */ -#define PHY_REG_MISR 0x12 /* MII Interrupt Status Register */ -#define PHY_REG_FCSCR 0x14 /* False Carrier Sense Counter */ -#define PHY_REG_RECR 0x15 /* Receive Error Counter */ -#define PHY_REG_PCSR 0x16 /* PCS Sublayer Config. and Status */ -#define PHY_REG_RBR 0x17 /* RMII and Bypass Register */ -#define PHY_REG_LEDCR 0x18 /* LED Direct Control Register */ -#define PHY_REG_PHYCR 0x19 /* PHY Control Register */ -#define PHY_REG_10BTSCR 0x1A /* 10Base-T Status/Control Register */ -#define PHY_REG_CDCTRL1 0x1B /* CD Test Control and BIST Extens. */ -#define PHY_REG_EDCR 0x1D /* Energy Detect Control Register */ - -/* PHY Control and Status bits */ -#define PHY_FULLD_100M 0x2100 /* Full Duplex 100Mbit */ -#define PHY_HALFD_100M 0x2000 /* Half Duplex 100Mbit */ -#define PHY_FULLD_10M 0x0100 /* Full Duplex 10Mbit */ -#define PHY_HALFD_10M 0x0000 /* Half Duplex 10MBit */ -#define PHY_AUTO_NEG 0x1000 /* Select Auto Negotiation */ -#define PHY_AUTO_NEG_DONE 0x0020 /* AutoNegotiation Complete in BMSR PHY reg */ -#define PHY_BMCR_RESET 0x8000 /* Reset bit at BMCR PHY reg */ -#define LINK_VALID_STS 0x0001 /* Link Valid Status at REG_STS PHY reg */ -#define FULL_DUP_STS 0x0004 /* Full Duplex Status at REG_STS PHY reg */ -#define SPEED_10M_STS 0x0002 /* 10Mbps Status at REG_STS PHY reg */ - -#define DP83848C_DEF_ADR 0x01 /* Default PHY device address */ -#define DP83848C_ID 0x20005C90 /* PHY Identifier (without Rev. info */ -#define LAN8720_ID 0x0007C0F1 /* PHY Identifier for SMSC PHY */ - -/* Misc */ -#define ETHERNET_RST 22 /* Reset Output for EMAC at RGU */ -#define RMII_SELECT 0x04 /* Select RMII in EMACCFG */ - - -/** - * @brief EMAC configuration structure definition - */ -typedef struct { - uint32_t Mode; /**< Supported EMAC PHY device speed, should be one of the following: - - EMAC_MODE_AUTO - - EMAC_MODE_10M_FULL - - EMAC_MODE_10M_HALF - - EMAC_MODE_100M_FULL - - EMAC_MODE_100M_HALF - */ - uint8_t *pbEMAC_Addr; /**< Pointer to EMAC Station address that contains 6-bytes - of MAC address, it must be sorted in order (bEMAC_Addr[0]..[5]) - */ -} EMAC_CFG_Type; - -/* Descriptor and status formats ---------------------------------------------- */ -/** - * @brief RX Descriptor structure type definition - */ -typedef struct { - uint32_t Status; /**< Receive Status Descriptor */ - uint32_t Ctrl; /**< Receive Control Descriptor */ - uint32_t Packet; /**< Receive Packet Descriptor */ - uint32_t NextDescripter;/**< Receive Next Descriptor Address */ -} RX_Desc; - -/** - * @brief RX Status structure type definition - */ -typedef struct { - uint32_t Info; /**< Receive Information Status */ - uint32_t HashCRC; /**< Receive Hash CRC Status */ -} RX_Stat; - -/** - * @brief TX Descriptor structure type definition - */ -typedef struct { - uint32_t Status; /**< Transmit Status Descriptor */ - uint32_t Ctrl; /**< Transmit Control Descriptor */ - uint32_t Packet; /**< Transmit Packet Descriptor */ - uint32_t NextDescripter; /**< Transmit Next Descriptor Address */ -} TX_Desc; - -/** - * @brief TX Status structure type definition - */ -typedef struct { - uint32_t Info; /**< Transmit Information Status */ -} TX_Stat; - - -/** - * @brief TX Data Buffer structure definition - */ -typedef struct { - uint32_t ulDataLen; /**< Data length */ - uint32_t *pbDataBuf; /**< A word-align data pointer to data buffer */ -} EMAC_PACKETBUF_Type; - - - -/* Prototypes */ -portBASE_TYPE EMAC_Init(EMAC_CFG_Type *EMAC_ConfigStruct); -int32_t EMAC_UpdatePHYStatus(void); -uint32_t EMAC_GetReceiveDataSize(void); -void EMAC_StartTransmitNextBuffer( uint32_t ulLength ); -void EMAC_SetNextPacketToSend( uint8_t * pucBuffer ); -void EMAC_NextPacketToRead( xNetworkBufferDescriptor_t *pxNetworkBuffer ); -void EMAC_UpdateRxConsumeIndex(void); -portBASE_TYPE EMAC_CheckReceiveIndex(void); -portBASE_TYPE EMAC_CheckTransmitIndex(void); - -#ifdef __cplusplus -} -#endif - -#endif /* LPC18XX_EMAC_H_ */ - -/** - * @} - */ - -/* --------------------------------- End Of File ------------------------------ */ -- 2.39.5