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94 lines
2.7 KiB
94 lines
2.7 KiB
3 months ago
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/** @defgroup ethernet_phy_ksz8051mll_file PHY KSZ8051MLL
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*
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* @ingroup ETH
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*
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* @brief <b>Ethernet PHY STM32Fxx7 Drivers</b>
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*
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* @version 1.0.0
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* @author @htmlonly © @endhtmlonly 2013 Frantisek Burian <BuFran@seznam.cz>
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*
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* @date 1 September 2013
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*
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* LGPL License Terms @ref lgpl_license
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*/
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2013 Frantisek Burian <BuFran@seznam.cz>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/ethernet/mac.h>
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#include <libopencm3/ethernet/phy.h>
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#include <libopencm3/ethernet/phy_ksz80x1.h>
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/**@{*/
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/*---------------------------------------------------------------------------*/
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/** @brief Get the current link status
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*
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* Retrieve the link speed and duplex status of the link.
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*
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* @param[in] phy uint8_t phy ID of the PHY
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* @returns ::phy_status Link status
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*/
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enum phy_status phy_link_status(uint8_t phy)
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{
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return eth_smi_read(phy, KSZ80X1_CR1) & 0x07;
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}
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/*---------------------------------------------------------------------------*/
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/** @brief Force autonegotiation
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*
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* Force the autonegotiation and set link speed and duplex mode of the link
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*
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* @param[in] phy uint8_t phy ID of the PHY
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* @param[in] mode enum phy_status Desired link status
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*/
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void phy_autoneg_force(uint8_t phy, enum phy_status mode)
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{
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uint16_t bst = 0;
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if ((mode == LINK_FD_10M) || (mode == LINK_FD_100M) ||
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(mode == LINK_FD_1000M) || (mode == LINK_FD_10000M)) {
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bst |= PHY_REG_BCR_FD;
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}
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if ((mode == LINK_FD_100M) || (mode == LINK_HD_100M)) {
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bst |= PHY_REG_BCR_100M;
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}
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eth_smi_bit_op(phy, PHY_REG_BCR, bst,
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~(PHY_REG_BCR_AN | PHY_REG_BCR_100M | PHY_REG_BCR_FD));
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}
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/*---------------------------------------------------------------------------*/
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/** @brief Enable the autonegotiation
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*
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* Enable the autonegotiation of the link speed and duplex mode
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*
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* @param[in] phy uint8_t phy ID of the PHY
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*/
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void phy_autoneg_enable(uint8_t phy)
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{
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eth_smi_bit_set(phy, PHY_REG_BCR, PHY_REG_BCR_AN | PHY_REG_BCR_ANRST);
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}
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/*---------------------------------------------------------------------------*/
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/**@}*/
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