sama5d2_eth_driver.h File Reference

SAMA5D2 Ethernet MAC driver. More...

#include "core/nic.h"

Go to the source code of this file.

Data Structures
struct	Sama5d2TxBufferDesc
	Transmit buffer descriptor. More...
struct	Sama5d2RxBufferDesc
	Receive buffer descriptor. More...

Macros
#define	SAMA5D2_ETH_TX_BUFFER_COUNT   4
#define	SAMA5D2_ETH_TX_BUFFER_SIZE   1536
#define	SAMA5D2_ETH_RX_BUFFER_COUNT   96
#define	SAMA5D2_ETH_RX_BUFFER_SIZE   128
#define	SAMA5D2_ETH_DUMMY_BUFFER_COUNT   2
#define	SAMA5D2_ETH_DUMMY_BUFFER_SIZE   128
#define	SAMA5D2_ETH_IRQ_PRIORITY   0
#define	SAMA5D2_ETH_RAM_SECTION   ".region_ddr_nocache"
#define	GMAC_TX_USED   0x80000000
#define	GMAC_TX_WRAP   0x40000000
#define	GMAC_TX_RLE_ERROR   0x20000000
#define	GMAC_TX_UNDERRUN_ERROR   0x10000000
#define	GMAC_TX_AHB_ERROR   0x08000000
#define	GMAC_TX_LATE_COL_ERROR   0x04000000
#define	GMAC_TX_CHECKSUM_ERROR   0x00700000
#define	GMAC_TX_NO_CRC   0x00010000
#define	GMAC_TX_LAST   0x00008000
#define	GMAC_TX_LENGTH   0x00003FFF
#define	GMAC_RX_ADDRESS   0xFFFFFFFC
#define	GMAC_RX_WRAP   0x00000002
#define	GMAC_RX_OWNERSHIP   0x00000001
#define	GMAC_RX_BROADCAST   0x80000000
#define	GMAC_RX_MULTICAST_HASH   0x40000000
#define	GMAC_RX_UNICAST_HASH   0x20000000
#define	GMAC_RX_SAR   0x08000000
#define	GMAC_RX_SAR_MASK   0x06000000
#define	GMAC_RX_TYPE_ID   0x01000000
#define	GMAC_RX_SNAP   0x01000000
#define	GMAC_RX_TYPE_ID_MASK   0x00C00000
#define	GMAC_RX_CHECKSUM_VALID   0x00C00000
#define	GMAC_RX_VLAN_TAG   0x00200000
#define	GMAC_RX_PRIORITY_TAG   0x00100000
#define	GMAC_RX_VLAN_PRIORITY   0x000E0000
#define	GMAC_RX_CFI   0x00010000
#define	GMAC_RX_EOF   0x00008000
#define	GMAC_RX_SOF   0x00004000
#define	GMAC_RX_LENGTH_MSB   0x00002000
#define	GMAC_RX_BAD_FCS   0x00002000
#define	GMAC_RX_LENGTH   0x00001FFF

Functions
error_t	sama5d2EthInit (NetInterface *interface)
	SAMA5D2 Ethernet MAC initialization. More...
void	sama5d2EthInitGpio (NetInterface *interface)
	GPIO configuration. More...
void	sama5d2EthInitBufferDesc (NetInterface *interface)
	Initialize buffer descriptors. More...
void	sama5d2EthTick (NetInterface *interface)
	SAMA5D2 Ethernet MAC timer handler. More...
void	sama5d2EthEnableIrq (NetInterface *interface)
	Enable interrupts. More...
void	sama5d2EthDisableIrq (NetInterface *interface)
	Disable interrupts. More...
void	sama5d2EthIrqHandler (void)
	SAMA5D2 Ethernet MAC interrupt service routine. More...
void	sama5d2EthEventHandler (NetInterface *interface)
	SAMA5D2 Ethernet MAC event handler. More...
error_t	sama5d2EthSendPacket (NetInterface *interface, const NetBuffer *buffer, size_t offset, NetTxAncillary *ancillary)
	Send a packet. More...
error_t	sama5d2EthReceivePacket (NetInterface *interface)
	Receive a packet. More...
error_t	sama5d2EthUpdateMacAddrFilter (NetInterface *interface)
	Configure MAC address filtering. More...
error_t	sama5d2EthUpdateMacConfig (NetInterface *interface)
	Adjust MAC configuration parameters for proper operation. More...
void	sama5d2EthWritePhyReg (uint8_t opcode, uint8_t phyAddr, uint8_t regAddr, uint16_t data)
	Write PHY register. More...
uint16_t	sama5d2EthReadPhyReg (uint8_t opcode, uint8_t phyAddr, uint8_t regAddr)
	Read PHY register. More...

Variables
const NicDriver	sama5d2EthDriver
	SAMA5D2 Ethernet MAC driver. More...

Detailed Description

SAMA5D2 Ethernet MAC driver.

License

SPDX-License-Identifier: GPL-2.0-or-later

Copyright (C) 2010-2025 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneTCP Open.

This program 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author

Oryx Embedded SARL (www.oryx-embedded.com)

Version

2.5.4

Definition in file sama5d2_eth_driver.h.

Macro Definition Documentation

GMAC_RX_ADDRESS

#define GMAC_RX_ADDRESS   0xFFFFFFFC

Definition at line 104 of file sama5d2_eth_driver.h.

GMAC_RX_BAD_FCS

#define GMAC_RX_BAD_FCS   0x00002000

Definition at line 123 of file sama5d2_eth_driver.h.

GMAC_RX_BROADCAST

#define GMAC_RX_BROADCAST   0x80000000

Definition at line 107 of file sama5d2_eth_driver.h.

GMAC_RX_CFI

#define GMAC_RX_CFI   0x00010000

Definition at line 119 of file sama5d2_eth_driver.h.

GMAC_RX_CHECKSUM_VALID

#define GMAC_RX_CHECKSUM_VALID   0x00C00000

Definition at line 115 of file sama5d2_eth_driver.h.

GMAC_RX_EOF

#define GMAC_RX_EOF   0x00008000

Definition at line 120 of file sama5d2_eth_driver.h.

GMAC_RX_LENGTH

#define GMAC_RX_LENGTH   0x00001FFF

Definition at line 124 of file sama5d2_eth_driver.h.

GMAC_RX_LENGTH_MSB

#define GMAC_RX_LENGTH_MSB   0x00002000

Definition at line 122 of file sama5d2_eth_driver.h.

GMAC_RX_MULTICAST_HASH

#define GMAC_RX_MULTICAST_HASH   0x40000000

Definition at line 108 of file sama5d2_eth_driver.h.

GMAC_RX_OWNERSHIP

#define GMAC_RX_OWNERSHIP   0x00000001

Definition at line 106 of file sama5d2_eth_driver.h.

GMAC_RX_PRIORITY_TAG

#define GMAC_RX_PRIORITY_TAG   0x00100000

Definition at line 117 of file sama5d2_eth_driver.h.

GMAC_RX_SAR

#define GMAC_RX_SAR   0x08000000

Definition at line 110 of file sama5d2_eth_driver.h.

GMAC_RX_SAR_MASK

#define GMAC_RX_SAR_MASK   0x06000000

Definition at line 111 of file sama5d2_eth_driver.h.

GMAC_RX_SNAP

#define GMAC_RX_SNAP   0x01000000

Definition at line 113 of file sama5d2_eth_driver.h.

GMAC_RX_SOF

#define GMAC_RX_SOF   0x00004000

Definition at line 121 of file sama5d2_eth_driver.h.

GMAC_RX_TYPE_ID

#define GMAC_RX_TYPE_ID   0x01000000

Definition at line 112 of file sama5d2_eth_driver.h.

GMAC_RX_TYPE_ID_MASK

#define GMAC_RX_TYPE_ID_MASK   0x00C00000

Definition at line 114 of file sama5d2_eth_driver.h.

GMAC_RX_UNICAST_HASH

#define GMAC_RX_UNICAST_HASH   0x20000000

Definition at line 109 of file sama5d2_eth_driver.h.

GMAC_RX_VLAN_PRIORITY

#define GMAC_RX_VLAN_PRIORITY   0x000E0000

Definition at line 118 of file sama5d2_eth_driver.h.

GMAC_RX_VLAN_TAG

#define GMAC_RX_VLAN_TAG   0x00200000

Definition at line 116 of file sama5d2_eth_driver.h.

GMAC_RX_WRAP

#define GMAC_RX_WRAP   0x00000002

Definition at line 105 of file sama5d2_eth_driver.h.

GMAC_TX_AHB_ERROR

#define GMAC_TX_AHB_ERROR   0x08000000

Definition at line 96 of file sama5d2_eth_driver.h.

GMAC_TX_CHECKSUM_ERROR

#define GMAC_TX_CHECKSUM_ERROR   0x00700000

Definition at line 98 of file sama5d2_eth_driver.h.

GMAC_TX_LAST

#define GMAC_TX_LAST   0x00008000

Definition at line 100 of file sama5d2_eth_driver.h.

GMAC_TX_LATE_COL_ERROR

#define GMAC_TX_LATE_COL_ERROR   0x04000000

Definition at line 97 of file sama5d2_eth_driver.h.

GMAC_TX_LENGTH

#define GMAC_TX_LENGTH   0x00003FFF

Definition at line 101 of file sama5d2_eth_driver.h.

GMAC_TX_NO_CRC

#define GMAC_TX_NO_CRC   0x00010000

Definition at line 99 of file sama5d2_eth_driver.h.

GMAC_TX_RLE_ERROR

#define GMAC_TX_RLE_ERROR   0x20000000

Definition at line 94 of file sama5d2_eth_driver.h.

GMAC_TX_UNDERRUN_ERROR

#define GMAC_TX_UNDERRUN_ERROR   0x10000000

Definition at line 95 of file sama5d2_eth_driver.h.

GMAC_TX_USED

#define GMAC_TX_USED   0x80000000

Definition at line 92 of file sama5d2_eth_driver.h.

GMAC_TX_WRAP

#define GMAC_TX_WRAP   0x40000000

Definition at line 93 of file sama5d2_eth_driver.h.

SAMA5D2_ETH_DUMMY_BUFFER_COUNT

#define SAMA5D2_ETH_DUMMY_BUFFER_COUNT   2

Definition at line 67 of file sama5d2_eth_driver.h.

SAMA5D2_ETH_DUMMY_BUFFER_SIZE

#define SAMA5D2_ETH_DUMMY_BUFFER_SIZE   128

Definition at line 74 of file sama5d2_eth_driver.h.

SAMA5D2_ETH_IRQ_PRIORITY

#define SAMA5D2_ETH_IRQ_PRIORITY   0

Definition at line 81 of file sama5d2_eth_driver.h.

SAMA5D2_ETH_RAM_SECTION

#define SAMA5D2_ETH_RAM_SECTION   ".region_ddr_nocache"

Definition at line 88 of file sama5d2_eth_driver.h.

SAMA5D2_ETH_RX_BUFFER_COUNT

#define SAMA5D2_ETH_RX_BUFFER_COUNT   96

Definition at line 53 of file sama5d2_eth_driver.h.

SAMA5D2_ETH_RX_BUFFER_SIZE

#define SAMA5D2_ETH_RX_BUFFER_SIZE   128

Definition at line 60 of file sama5d2_eth_driver.h.

SAMA5D2_ETH_TX_BUFFER_COUNT

#define SAMA5D2_ETH_TX_BUFFER_COUNT   4

Definition at line 39 of file sama5d2_eth_driver.h.

SAMA5D2_ETH_TX_BUFFER_SIZE

#define SAMA5D2_ETH_TX_BUFFER_SIZE   1536

Definition at line 46 of file sama5d2_eth_driver.h.

Function Documentation

sama5d2EthDisableIrq()

void sama5d2EthDisableIrq

(

NetInterface *

interface

)

Disable interrupts.

Parameters

[in]

interface

Underlying network interface

Definition at line 431 of file sama5d2_eth_driver.c.

sama5d2EthEnableIrq()

void sama5d2EthEnableIrq

(

NetInterface *

interface

)

Enable interrupts.

Parameters

[in]

interface

Underlying network interface

Definition at line 403 of file sama5d2_eth_driver.c.

sama5d2EthEventHandler()

void sama5d2EthEventHandler

(

NetInterface *

interface

)

SAMA5D2 Ethernet MAC event handler.

Parameters

[in]

interface

Underlying network interface

Definition at line 517 of file sama5d2_eth_driver.c.

sama5d2EthInit()

error_t sama5d2EthInit

(

NetInterface *

interface

)

SAMA5D2 Ethernet MAC initialization.

Parameters

[in]

interface

Underlying network interface

Returns

Error code

Definition at line 151 of file sama5d2_eth_driver.c.

sama5d2EthInitBufferDesc()

void sama5d2EthInitBufferDesc

(

NetInterface *

interface

)

Initialize buffer descriptors.

Parameters

[in]

interface

Underlying network interface

Definition at line 292 of file sama5d2_eth_driver.c.

sama5d2EthInitGpio()

void sama5d2EthInitGpio

(

NetInterface *

interface

)

GPIO configuration.

Parameters

[in]

interface

Underlying network interface

Definition at line 272 of file sama5d2_eth_driver.c.

sama5d2EthIrqHandler()

void sama5d2EthIrqHandler

(

void

)

SAMA5D2 Ethernet MAC interrupt service routine.

Definition at line 458 of file sama5d2_eth_driver.c.

sama5d2EthReadPhyReg()

uint16_t sama5d2EthReadPhyReg	(	uint8_t	opcode,
		uint8_t	phyAddr,
		uint8_t	regAddr
	)

Read PHY register.

Parameters

[in]	opcode	Access type (2 bits)
[in]	phyAddr	PHY address (5 bits)
[in]	regAddr	Register address (5 bits)

Returns

Register value

Definition at line 963 of file sama5d2_eth_driver.c.

sama5d2EthReceivePacket()

error_t sama5d2EthReceivePacket

(

NetInterface *

interface

)

Receive a packet.

Parameters

[in]

interface

Underlying network interface

Returns

Error code

Definition at line 623 of file sama5d2_eth_driver.c.

sama5d2EthSendPacket()

error_t sama5d2EthSendPacket	(	NetInterface *	interface,
		const NetBuffer *	buffer,
		size_t	offset,
		NetTxAncillary *	ancillary
	)

Send a packet.

Parameters

[in]	interface	Underlying network interface
[in]	buffer	Multi-part buffer containing the data to send
[in]	offset	Offset to the first data byte
[in]	ancillary	Additional options passed to the stack along with the packet

Returns

Error code

Definition at line 553 of file sama5d2_eth_driver.c.

sama5d2EthTick()

void sama5d2EthTick

(

NetInterface *

interface

)

SAMA5D2 Ethernet MAC timer handler.

This routine is periodically called by the TCP/IP stack to handle periodic operations such as polling the link state

Parameters

[in]

interface

Underlying network interface

Definition at line 378 of file sama5d2_eth_driver.c.

sama5d2EthUpdateMacAddrFilter()

error_t sama5d2EthUpdateMacAddrFilter

(

NetInterface *

interface

)

Configure MAC address filtering.

Parameters

[in]

interface

Underlying network interface

Returns

Error code

Definition at line 755 of file sama5d2_eth_driver.c.

sama5d2EthUpdateMacConfig()

error_t sama5d2EthUpdateMacConfig

(

NetInterface *

interface

)

Adjust MAC configuration parameters for proper operation.

Parameters

[in]

interface

Underlying network interface

Returns

Error code

Definition at line 881 of file sama5d2_eth_driver.c.

sama5d2EthWritePhyReg()

void sama5d2EthWritePhyReg	(	uint8_t	opcode,
		uint8_t	phyAddr,
		uint8_t	regAddr,
		uint16_t	data
	)

Write PHY register.

Parameters

[in]	opcode	Access type (2 bits)
[in]	phyAddr	PHY address (5 bits)
[in]	regAddr	Register address (5 bits)
[in]	data	Register value

Definition at line 924 of file sama5d2_eth_driver.c.

Variable Documentation

sama5d2EthDriver

const NicDriver sama5d2EthDriver

extern

SAMA5D2 Ethernet MAC driver.

Definition at line 124 of file sama5d2_eth_driver.c.