diff options
Diffstat (limited to 'libopencm3/lib/ethernet/phy_ksz8051mll.c')
| -rw-r--r-- | libopencm3/lib/ethernet/phy_ksz8051mll.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/libopencm3/lib/ethernet/phy_ksz8051mll.c b/libopencm3/lib/ethernet/phy_ksz8051mll.c new file mode 100644 index 0000000..1faae4f --- /dev/null +++ b/libopencm3/lib/ethernet/phy_ksz8051mll.c @@ -0,0 +1,89 @@ +/** @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); +} + +/*---------------------------------------------------------------------------*/ + +/**@}*/ |