2 * FreeRTOS+UDP V1.0.4
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3 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software. If you wish to use our Amazon
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14 * FreeRTOS name, please do so in a fair use way that does not cause confusion.
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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18 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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19 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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23 * http://www.FreeRTOS.org
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24 * http://aws.amazon.com/freertos
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26 * 1 tab == 4 spaces!
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29 #ifndef LPC18xx_43xx_EMAC_H
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30 #define LPC18xx_43xx_EMAC_H
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33 * Initialise the MAC and PHY.
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35 BaseType_t xEMACInit( uint8_t ucMACAddress[ 6 ] );
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38 * Return pdTRUE if there is a FreeRTOS Tx descriptor. Return pdFALSE if all
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39 * Tx descriptors are already in use.
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41 BaseType_t xEMACIsTxDescriptorAvailable( void );
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44 * Assign a buffer to a Tx descriptor so it is ready to be transmitted, but
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45 * don't start the transmission yet.
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47 void vEMACAssignBufferToDescriptor( uint8_t * pucBuffer );
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50 * Start transmitting the buffer pointed to by the next Tx descriptor. The
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51 * buffer must have first been allocated to the Tx descriptor using a call to
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52 * vEMACAssignBufferToDescriptor().
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54 void vEMACStartNextTransmission( uint32_t ulLength );
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57 * The data pointed to by the Rx descriptor has been consumed, and the Rx
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58 * descriptor can be returned to the control of the DMS.
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60 void vEMACReturnRxDescriptor( void );
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63 * Returns pdTRUE if the next Rx descriptor contains received data. Returns
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64 * pdFLASE fi the next Rx descriptor is still under the control of the DMA.
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66 BaseType_t xEMACRxDataAvailable( void );
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67 void vEMACSwapEmptyBufferForRxedData( xNetworkBufferDescriptor_t *pxNetworkBuffer );
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69 #endif /* LPC18xx_43xx_EMAC_H */
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