Git-Mirrors/OpenModem
1
0
Fork 0
mirror of https://github.com/markqvist/OpenModem.git synced 2025-08-01 19:36:05 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Working

Browse source
This commit is contained in:
Mark Qvist 2014-04-03 22:21:37 +02:00
commit c898b090dd
1049 changed files with 288572 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

135
bertos/drv/eth.h Normal file
View file

@ -0,0 +1,135 @@
/**
* \file
* <!--
* This file is part of BeRTOS.
*
* Bertos is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As a special exception, you may use this file as part of a free software
* library without restriction. Specifically, if other files instantiate
* templates or use macros or inline functions from this file, or you compile
* this file and link it with other files to produce an executable, this
* file does not by itself cause the resulting executable to be covered by
* the GNU General Public License. This exception does not however
* invalidate any other reasons why the executable file might be covered by
* the GNU General Public License.
*
* Copyright 2010 Develer S.r.l. (http://www.develer.com/)
*
* -->
*
* \author Andrea Righi <arighi@develer.com>
*
* \brief Ethernet standard descriptors
*
* $WIZ$ module_name = "eth"
* $WIZ$ module_configuration = "bertos/cfg/cfg_eth.h"
* $WIZ$ module_supports = "at91sam7x or sam3x"
* $WIZ$ module_hw = "bertos/hw/hw_eth.h", "bertos/hw/hw_eth.c"
*/
#ifndef DRV_ETH_H
#define DRV_ETH_H
#include "hw/hw_eth.h"
#include <cpu/types.h>
#define ETH_ADDR_LEN 6
#define ETH_HEAD_LEN 14
#define ETH_DATA_LEN 1500
#define ETH_FRAME_LEN (ETH_HEAD_LEN + ETH_DATA_LEN)
#define ETH_TYPE_IP 0x0800
typedef union Ethernet
{
struct
{
uint8_t dst[ETH_ADDR_LEN];
uint8_t src[ETH_ADDR_LEN];
uint16_t type;
uint8_t data[0];
};
uint8_t raw[ETH_FRAME_LEN];
} PACKED Ethernet;
/**
* Determine if ethernet address \a addr is a all zero.
*/
INLINE int eth_addrIsZero(const uint8_t *addr)
{
return !(addr[0] | addr[1] | addr[2] |
addr[3] | addr[4] | addr[5]);
}
/**
* Determine if ethernet address \a addr is a multicast address.
*/
INLINE int eth_addrIsMcast(const uint8_t *addr)
{
return (0x01 & addr[0]);
}
/**
* Determine if ethernet address \a addr is locally-assigned (IEEE 802).
*/
INLINE int eth_addrIsLocal(const uint8_t *addr)
{
return (0x02 & addr[0]);
}
/**
* Determine if ethernet address \a addr is broadcast.
*/
INLINE bool eth_addrIsBcast(const uint8_t *addr)
{
return (addr[0] & addr[1] & addr[2] &
addr[3] & addr[4] & addr[5]) == 0xff;
}
/**
* Check if the ethernet address \a addr is not all zero, is not a multicast
* address, and is not broadcast.
*/
INLINE bool eth_addrIsValid(const uint8_t *addr)
{
return !eth_addrIsMcast(addr) && !eth_addrIsZero(addr);
}
/**
* Compare two ethernet addresses: \a addr1 and \a addr2, returns 0 if equal.
*/
INLINE bool eth_addrCmp(const uint8_t *addr1, const uint8_t *addr2)
{
return !!((addr1[0] ^ addr2[0]) |
(addr1[1] ^ addr2[1]) |
(addr1[2] ^ addr2[2]) |
(addr1[3] ^ addr2[3]) |
(addr1[4] ^ addr2[4]) |
(addr1[5] ^ addr2[5]));
}
ssize_t eth_putFrame(const uint8_t *buf, size_t len);
void eth_sendFrame(void);
size_t eth_getFrameLen(void);
ssize_t eth_getFrame(uint8_t *buf, size_t len);
ssize_t eth_send(const uint8_t *buf, size_t len);
ssize_t eth_recv(uint8_t *buf, size_t len);
int eth_init(void);
#endif /* DRV_ETH_H */