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/** @defgroup ethernet_phy_ksz8051mll_file PHY KSZ8051MLL
*
* @ingroup ETH
*
* @brief <b>Ethernet PHY STM32Fxx7 Drivers</b>
*
* @version 1.0.0
* @author @htmlonly © @endhtmlonly 2013 Frantisek Burian <BuFran@seznam.cz>
*
* @date 1 September 2013
*
* LGPL License Terms @ref lgpl_license
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2013 Frantisek Burian <BuFran@seznam.cz>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/ethernet/mac.h>
#include <libopencm3/ethernet/phy.h>
#include <libopencm3/ethernet/phy_ksz8051mll.h>
/**@{*/
/*---------------------------------------------------------------------------*/
/** @brief Get the current link status
*
* Retrieve the link speed and duplex status of the link.
*
* @returns ::phy_status Link status
*/
enum phy_status phy_link_status(void)
{
return eth_smi_read(1, PHY_REG_CR1) & 0x07;
}
/*---------------------------------------------------------------------------*/
/** @brief Force autonegotiation
*
* Force the autonegotiation and set link speed and duplex mode of the link
*
* @param[in] mode enum phy_status Desired link status
*/
void phy_autoneg_force(enum phy_status mode)
{
uint16_t bst = 0;
if ((mode == LINK_FD_10M) || (mode == LINK_FD_100M) ||
(mode == LINK_FD_1000M) || (mode == LINK_FD_10000M)) {
bst |= PHY_REG_BCR_FD;
}
if ((mode == LINK_FD_100M) || (mode == LINK_FD_100M)) {
bst |= PHY_REG_BCR_100M;
}
eth_smi_bit_op(1, PHY_REG_BCR, bst,
~(PHY_REG_BCR_AN | PHY_REG_BCR_100M | PHY_REG_BCR_FD));
}
/*---------------------------------------------------------------------------*/
/** @brief Enable the autonegotiation
*
* Enable the autonegotiation of the link speed and duplex mode
*/
void phy_autoneg_enable(void)
{
eth_smi_bit_set(1, PHY_REG_BCR, PHY_REG_BCR_AN | PHY_REG_BCR_ANRST);
}
/*---------------------------------------------------------------------------*/
/**@}*/
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