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EthernetInterface/lwip-eth/arch/lpc_phy.h@0:7766f6712673, 2014-03-12 (annotated)

Committer:
yueee_yt
Date:
Wed Mar 12 04:19:54 2014 +0000
Revision:
0:7766f6712673
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yueee_yt 0:7766f6712673 1 /**********************************************************************
yueee_yt 0:7766f6712673 2 * $Id$ lpc_phy.h 2011-11-20
yueee_yt 0:7766f6712673 3 *//**
yueee_yt 0:7766f6712673 4 * @file lpc_phy.h
yueee_yt 0:7766f6712673 5 * @brief Common PHY definitions used with all PHYs
yueee_yt 0:7766f6712673 6 * @version 1.0
yueee_yt 0:7766f6712673 7 * @date 20 Nov. 2011
yueee_yt 0:7766f6712673 8 * @author NXP MCU SW Application Team
yueee_yt 0:7766f6712673 9 *
yueee_yt 0:7766f6712673 10 * Copyright(C) 2011, NXP Semiconductor
yueee_yt 0:7766f6712673 11 * All rights reserved.
yueee_yt 0:7766f6712673 12 *
yueee_yt 0:7766f6712673 13 ***********************************************************************
yueee_yt 0:7766f6712673 14 * Software that is described herein is for illustrative purposes only
yueee_yt 0:7766f6712673 15 * which provides customers with programming information regarding the
yueee_yt 0:7766f6712673 16 * products. This software is supplied "AS IS" without any warranties.
yueee_yt 0:7766f6712673 17 * NXP Semiconductors assumes no responsibility or liability for the
yueee_yt 0:7766f6712673 18 * use of the software, conveys no license or title under any patent,
yueee_yt 0:7766f6712673 19 * copyright, or mask work right to the product. NXP Semiconductors
yueee_yt 0:7766f6712673 20 * reserves the right to make changes in the software without
yueee_yt 0:7766f6712673 21 * notification. NXP Semiconductors also make no representation or
yueee_yt 0:7766f6712673 22 * warranty that such application will be suitable for the specified
yueee_yt 0:7766f6712673 23 * use without further testing or modification.
yueee_yt 0:7766f6712673 24 **********************************************************************/
yueee_yt 0:7766f6712673 25
yueee_yt 0:7766f6712673 26 #ifndef __LPC_PHY_H_
yueee_yt 0:7766f6712673 27 #define __LPC_PHY_H_
yueee_yt 0:7766f6712673 28
yueee_yt 0:7766f6712673 29 #include "lwip/opt.h"
yueee_yt 0:7766f6712673 30 #include "lwip/err.h"
yueee_yt 0:7766f6712673 31 #include "lwip/netif.h"
yueee_yt 0:7766f6712673 32
yueee_yt 0:7766f6712673 33 #ifdef __cplusplus
yueee_yt 0:7766f6712673 34 extern "C"
yueee_yt 0:7766f6712673 35 {
yueee_yt 0:7766f6712673 36 #endif
yueee_yt 0:7766f6712673 37
yueee_yt 0:7766f6712673 38 /* These PHY functions are usually part of the EMAC driver */
yueee_yt 0:7766f6712673 39
yueee_yt 0:7766f6712673 40 /** \brief Phy status update state machine
yueee_yt 0:7766f6712673 41 *
yueee_yt 0:7766f6712673 42 * This function provides a state machine for maintaining the PHY
yueee_yt 0:7766f6712673 43 * status without blocking. It must be occasionally called for the
yueee_yt 0:7766f6712673 44 * PHY status to be maintained.
yueee_yt 0:7766f6712673 45 *
yueee_yt 0:7766f6712673 46 * \param[in] netif NETIF structure
yueee_yt 0:7766f6712673 47 */
yueee_yt 0:7766f6712673 48 s32_t lpc_phy_sts_sm(struct netif *netif);
yueee_yt 0:7766f6712673 49
yueee_yt 0:7766f6712673 50 /** \brief Initialize the PHY
yueee_yt 0:7766f6712673 51 *
yueee_yt 0:7766f6712673 52 * This function initializes the PHY. It will block until complete.
yueee_yt 0:7766f6712673 53 * This function is called as part of the EMAC driver
yueee_yt 0:7766f6712673 54 * initialization. Configuration of the PHY at startup is
yueee_yt 0:7766f6712673 55 * controlled by setting up configuration defines in lpc_phy.h.
yueee_yt 0:7766f6712673 56 *
yueee_yt 0:7766f6712673 57 * \param[in] netif NETIF structure
yueee_yt 0:7766f6712673 58 * \param[in] rmii If set, configures the PHY for RMII mode
yueee_yt 0:7766f6712673 59 * \return ERR_OK if the setup was successful, otherwise ERR_TIMEOUT
yueee_yt 0:7766f6712673 60 */
yueee_yt 0:7766f6712673 61 err_t lpc_phy_init(struct netif *netif, int rmii);
yueee_yt 0:7766f6712673 62
yueee_yt 0:7766f6712673 63 /** \brief Write a value via the MII link (non-blocking)
yueee_yt 0:7766f6712673 64 *
yueee_yt 0:7766f6712673 65 * This function will write a value on the MII link interface to a PHY
yueee_yt 0:7766f6712673 66 * or a connected device. The function will return immediately without
yueee_yt 0:7766f6712673 67 * a status. Status needs to be polled later to determine if the write
yueee_yt 0:7766f6712673 68 * was successful.
yueee_yt 0:7766f6712673 69 *
yueee_yt 0:7766f6712673 70 * \param[in] PhyReg PHY register to write to
yueee_yt 0:7766f6712673 71 * \param[in] Value Value to write
yueee_yt 0:7766f6712673 72 */
yueee_yt 0:7766f6712673 73 void lpc_mii_write_noblock(u32_t PhyReg, u32_t Value);
yueee_yt 0:7766f6712673 74
yueee_yt 0:7766f6712673 75 /** \brief Write a value via the MII link (blocking)
yueee_yt 0:7766f6712673 76 *
yueee_yt 0:7766f6712673 77 * This function will write a value on the MII link interface to a PHY
yueee_yt 0:7766f6712673 78 * or a connected device. The function will block until complete.
yueee_yt 0:7766f6712673 79 *
yueee_yt 0:7766f6712673 80 * \param[in] PhyReg PHY register to write to
yueee_yt 0:7766f6712673 81 * \param[in] Value Value to write
yueee_yt 0:7766f6712673 82 * \returns 0 if the write was successful, otherwise !0
yueee_yt 0:7766f6712673 83 */
yueee_yt 0:7766f6712673 84 err_t lpc_mii_write(u32_t PhyReg, u32_t Value);
yueee_yt 0:7766f6712673 85
yueee_yt 0:7766f6712673 86 /** \brief Reads current MII link busy status
yueee_yt 0:7766f6712673 87 *
yueee_yt 0:7766f6712673 88 * This function will return the current MII link busy status and is meant to
yueee_yt 0:7766f6712673 89 * be used with non-blocking functions for monitor PHY status such as
yueee_yt 0:7766f6712673 90 * connection state.
yueee_yt 0:7766f6712673 91 *
yueee_yt 0:7766f6712673 92 * \returns !0 if the MII link is busy, otherwise 0
yueee_yt 0:7766f6712673 93 */
yueee_yt 0:7766f6712673 94 u32_t lpc_mii_is_busy(void);
yueee_yt 0:7766f6712673 95
yueee_yt 0:7766f6712673 96 /** \brief Starts a read operation via the MII link (non-blocking)
yueee_yt 0:7766f6712673 97 *
yueee_yt 0:7766f6712673 98 * This function returns the current value in the MII data register. It is
yueee_yt 0:7766f6712673 99 * meant to be used with the non-blocking oeprations. This value should
yueee_yt 0:7766f6712673 100 * only be read after a non-block read command has been issued and the
yueee_yt 0:7766f6712673 101 * MII status has been determined to be good.
yueee_yt 0:7766f6712673 102 *
yueee_yt 0:7766f6712673 103 * \returns The current value in the MII value register
yueee_yt 0:7766f6712673 104 */
yueee_yt 0:7766f6712673 105 u32_t lpc_mii_read_data(void);
yueee_yt 0:7766f6712673 106
yueee_yt 0:7766f6712673 107 /** \brief Starts a read operation via the MII link (non-blocking)
yueee_yt 0:7766f6712673 108 *
yueee_yt 0:7766f6712673 109 * This function will start a read operation on the MII link interface
yueee_yt 0:7766f6712673 110 * from a PHY or a connected device. The function will not block and
yueee_yt 0:7766f6712673 111 * the status mist be polled until complete. Once complete, the data
yueee_yt 0:7766f6712673 112 * can be read.
yueee_yt 0:7766f6712673 113 *
yueee_yt 0:7766f6712673 114 * \param[in] PhyReg PHY register to read from
yueee_yt 0:7766f6712673 115 */
yueee_yt 0:7766f6712673 116 err_t lpc_mii_read(u32_t PhyReg, u32_t *data);
yueee_yt 0:7766f6712673 117
yueee_yt 0:7766f6712673 118 /** \brief Read a value via the MII link (blocking)
yueee_yt 0:7766f6712673 119 *
yueee_yt 0:7766f6712673 120 * This function will read a value on the MII link interface from a PHY
yueee_yt 0:7766f6712673 121 * or a connected device. The function will block until complete.
yueee_yt 0:7766f6712673 122 *
yueee_yt 0:7766f6712673 123 * \param[in] PhyReg PHY register to read from
yueee_yt 0:7766f6712673 124 * \param[in] data Pointer to where to save data read via MII
yueee_yt 0:7766f6712673 125 * \returns 0 if the read was successful, otherwise !0
yueee_yt 0:7766f6712673 126 */
yueee_yt 0:7766f6712673 127 void lpc_mii_read_noblock(u32_t PhyReg);
yueee_yt 0:7766f6712673 128
yueee_yt 0:7766f6712673 129 /**
yueee_yt 0:7766f6712673 130 * This function provides a method for the PHY to setup the EMAC
yueee_yt 0:7766f6712673 131 * for the PHY negotiated duplex mode.
yueee_yt 0:7766f6712673 132 *
yueee_yt 0:7766f6712673 133 * @param[in] full_duplex 0 = half duplex, 1 = full duplex
yueee_yt 0:7766f6712673 134 */
yueee_yt 0:7766f6712673 135 void lpc_emac_set_duplex(int full_duplex);
yueee_yt 0:7766f6712673 136
yueee_yt 0:7766f6712673 137 /**
yueee_yt 0:7766f6712673 138 * This function provides a method for the PHY to setup the EMAC
yueee_yt 0:7766f6712673 139 * for the PHY negotiated bit rate.
yueee_yt 0:7766f6712673 140 *
yueee_yt 0:7766f6712673 141 * @param[in] mbs_100 0 = 10mbs mode, 1 = 100mbs mode
yueee_yt 0:7766f6712673 142 */
yueee_yt 0:7766f6712673 143 void lpc_emac_set_speed(int mbs_100);
yueee_yt 0:7766f6712673 144
yueee_yt 0:7766f6712673 145 #ifdef __cplusplus
yueee_yt 0:7766f6712673 146 }
yueee_yt 0:7766f6712673 147 #endif
yueee_yt 0:7766f6712673 148
yueee_yt 0:7766f6712673 149 #endif /* __LPC_PHY_H_ */
yueee_yt 0:7766f6712673 150
yueee_yt 0:7766f6712673 151 /* --------------------------------- End Of File ------------------------------ */