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100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/*
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* Copyright 2010-2012 Ettus Research LLC
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* Copyright 2007 Free Software Foundation, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU 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 program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_ETHERNET_H
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#define INCLUDED_ETHERNET_H
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#include <net/eth_mac_addr.h>
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#include <lwip/ip_addr.h>
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#include <stdbool.h>
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typedef void (*ethernet_link_changed_callback_t)(int speed);
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/*!
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* \brief one time call to initialize ethernet
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*/
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void ethernet_init(void);
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/*!
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* \brief Specify the function to call on link state changes.
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*
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* When the link comes up, speed is the link speed in Mbit/s.
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* When the link goes down, speed is 0.
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*/
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void ethernet_register_link_changed_callback(ethernet_link_changed_callback_t cb);
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/*!
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* \returns ethernet MAC address
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*/
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const eth_mac_addr_t *ethernet_mac_addr(void);
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/*!
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* \returns IP address
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*/
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const struct ip_addr *get_ip_addr(void);
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/*!
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* \returns gateway address
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*/
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const struct ip_addr *get_gateway(void);
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/*!
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* \returns subnet address
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*/
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const struct ip_addr *get_subnet(void);
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/*!
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* \brief write ip address to eeprom and begin using it
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*/
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bool set_ip_addr(const struct ip_addr *t);
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//! Apply default settings to eth addrs
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void eth_addrs_set_default(void);
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/*
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* \brief read RMON regs and return error mask
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*/
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int ethernet_check_errors(void);
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#define RME_RX_CRC 0x0001
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#define RME_RX_FIFO_FULL 0x0002
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#define RME_RX_2SHORT_2LONG 0x0004
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#define RME_TX_JAM_DROP 0x0010
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#define RME_TX_FIFO_UNDER 0x0020
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#define RME_TX_FIFO_OVER 0x0040
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typedef enum { LS_UNKNOWN, LS_DOWN, LS_UP } eth_link_state_t;
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// flow control bitmasks
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#define FC_NONE 0x0
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#define FC_WE_TX 0x1 // we send PAUSE frames
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#define FC_WE_RX 0x2 // we honor received PAUSE frames
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#define FC_SYMM (FC_WE_TX | FC_WE_RX)
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#define S_UNKNOWN (-1) // unknown link speed
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typedef struct {
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eth_link_state_t link_state;
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int link_speed; // in Mb/s
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int flow_control;
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} ethernet_t;
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#endif /* INCLUDED_ETHERNET_H */
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