ethernet_phy.h

 /**
 * \file
 *
 * \brief API driver for DM9161A PHY component.
 *
 * Copyright (c) 2012 Atmel Corporation. All rights reserved.
 *
 * \asf_license_start
 *
 * \page License
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. The name of Atmel may not be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * 4. This software may only be redistributed and used in connection with an
 *    Atmel microcontroller product.
 *
 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * \asf_license_stop
 *
 */

#ifndef DM9161A_H_INCLUDED
#define DM9161A_H_INCLUDED

#include <Arduino.h>
#include "conf_eth.h"

/// @cond 0
/**INDENT-OFF**/
#ifdef __cplusplus
 extern "C" {
#endif
/**INDENT-ON**/
/// @endcond

/**
 * \brief Perform a HW initialization to the PHY ( via RSTC ) and set up clocks.
 *
 * This should be called only once to initialize the PHY pre-settings.
 * The PHY address is the reset status of CRS, RXD[3:0] (the emacPins' pullups).
 * The COL pin is used to select MII mode on reset (pulled up for Reduced MII).
 * The RXDV pin is used to select test mode on reset (pulled up for test mode).
 * The above pins should be predefined for corresponding settings in resetPins.
 * The EMAC peripheral pins are configured after the reset is done.
 *
 * \param p_emac   Pointer to the EMAC instance.
 * \param uc_phy_addr PHY address.
 * \param ul_mck EMAC MCK.
 *
 * Return EMAC_OK if successfully, EMAC_TIMEOUT if timeout.
 */
uint8_t ethernet_phy_init(Emac *p_emac, uint8_t uc_phy_addr, uint32_t ul_mck);


/**
 * \brief Get the Link & speed settings, and automatically set up the EMAC with the
 * settings.
 *
 * \param p_emac   Pointer to the EMAC instance.
 * \param uc_phy_addr PHY address.
 * \param uc_apply_setting_flag Set to 0 to not apply the PHY configurations, else to apply.
 *
 * Return EMAC_OK if successfully, EMAC_TIMEOUT if timeout.
 */
uint8_t ethernet_phy_set_link(Emac *p_emac, uint8_t uc_phy_addr,
		uint8_t uc_apply_setting_flag);


/**
 * \brief Issue an auto negotiation of the PHY.
 *
 * \param p_emac   Pointer to the EMAC instance.
 * \param uc_phy_addr PHY address.
 *
 * Return EMAC_OK if successfully, EMAC_TIMEOUT if timeout.
 */
uint8_t ethernet_phy_auto_negotiate(Emac *p_emac, uint8_t uc_phy_addr);

/**
 * \brief Issue a SW reset to reset all registers of the PHY.
 *
 * \param p_emac   Pointer to the EMAC instance.
 * \param uc_phy_addr PHY address.
 *
 * \Return EMAC_OK if successfully, EMAC_TIMEOUT if timeout.
 */
uint8_t ethernet_phy_reset(Emac *p_emac, uint8_t uc_phy_addr);

/// @cond 0
/**INDENT-OFF**/
#ifdef __cplusplus
}
#endif
/**INDENT-ON**/
/// @endcond

#endif /* DM9161A_H_INCLUDED */