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129 lines
4.2 KiB
C
129 lines
4.2 KiB
C
/*
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* @brief LPC18xx/43xx LWIP EMAC driver
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*
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* @note
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* Copyright(C) NXP Semiconductors, 2012
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* All rights reserved.
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*
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* @par
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* LPC products. This software is supplied "AS IS" without any warranties of
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* any kind, and NXP Semiconductors and its licensor disclaim any and
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* all warranties, express or implied, including all implied warranties of
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* merchantability, fitness for a particular purpose and non-infringement of
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* intellectual property rights. NXP Semiconductors assumes no responsibility
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* or liability for the use of the software, conveys no license or rights under any
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* patent, copyright, mask work right, or any other intellectual property rights in
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* or to any products. NXP Semiconductors reserves the right to make changes
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* in the software without notification. NXP Semiconductors also makes no
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* representation or warranty that such application will be suitable for the
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* specified use without further testing or modification.
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*
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* @par
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors' and its
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* licensor's relevant copyrights in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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*/
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#ifndef __LPC18XX_43XX_EMAC_H_
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#define __LPC18XX_43XX_EMAC_H_
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#include "lwip/opt.h"
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#include "lwip/netif.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/** @defgroup NET_LWIP_LPC18XX43XX_EMAC_DRIVER 18xx/43xx EMAC driver for LWIP
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* @ingroup NET_LWIP
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* This is the LPC18xx/43xx EMAC driver for LWIP. This driver supports both
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* RTOS-based and no-RTOS operation with LWIP. WHen using an RTOS, several
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* threads will be created for handling RX and TX packet fucntions.
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*
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* Note that some LWIP examples may not necessarily use all the provided
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* LWIP driver functions or may contain overriden versions of the functions.
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* (For example, PHY drives may have their own implementation of the MII
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* read/write functions).
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* @{
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*/
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/**
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* @brief Attempt to read a packet from the EMAC interface
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* @param netif : lwip network interface structure pointer
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* @return Nothing
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*/
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void lpc_enetif_input(struct netif *netif);
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/**
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* @brief Attempt to allocate and requeue a new pbuf for RX
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* @param netif : lwip network interface structure pointer
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* @return The number of new descriptors queued
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*/
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s32_t lpc_rx_queue(struct netif *netif);
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/**
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* @brief Polls if an available TX descriptor is ready
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* @param netif : lwip network interface structure pointer
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* @return 0 if no descriptors are read, or >0
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* @note Can be used to determine if the low level transmit function will block
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*/
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s32_t lpc_tx_ready(struct netif *netif);
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/**
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* @brief Call for freeing TX buffers that are complete
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* @param netif : lwip network interface structure pointer
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* @return Nothing
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*/
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void lpc_tx_reclaim(struct netif *netif);
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/**
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* @brief LWIP 18xx/43xx EMAC initialization function
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* @param netif : lwip network interface structure pointer
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* @return ERR_OK if the loopif is initialized, or ERR_* on other errors
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* @note Should be called at the beginning of the program to set up the
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* network interface. This function should be passed as a parameter to
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* netif_add().
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*/
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err_t lpc_enetif_init(struct netif *netif);
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/**
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* @brief Set up the MAC interface duplex
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* @param full_duplex : 0 = half duplex, 1 = full duplex
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* @return Nothing
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* @note This function provides a method for the PHY to setup the EMAC
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* for the PHY negotiated duplex mode.
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*/
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void lpc_emac_set_duplex(int full_duplex);
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/**
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* @brief Set up the MAC interface speed
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* @param mbs_100 : 0 = 10mbs mode, 1 = 100mbs mode
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* @return Nothing
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* @note This function provides a method for the PHY to setup the EMAC
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* for the PHY negotiated bit rate.
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*/
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void lpc_emac_set_speed(int mbs_100);
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/**
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* @brief Millisecond Delay function
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* @param ms : Milliseconds to wait
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* @return None
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*/
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extern void msDelay(uint32_t ms);
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#ifdef __cplusplus
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}
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#endif
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/**
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* @}
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*/
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#endif /* __LPC18XX_43XX_EMAC_H_ */
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