am243x_eth_driver.h File Reference

AM243x Ethernet MAC driver. More...

#include "core/nic.h"

Go to the source code of this file.

Data Structures
struct	Am64xAleEntry
	ALE table entry. More...
struct	Am64xTxDmaDesc
	Enhanced TX DMA descriptor. More...
struct	Am64xRxDmaDesc
	Enhanced RX DMA descriptor. More...

Macros
#define	CPSW_PORT0   0
#define	CPSW_PORT1   1
#define	CPSW_PORT2   2
#define	CPSW_CH0   0
#define	CPSW_CH1   1
#define	CPSW_CH2   2
#define	CPSW_CH3   3
#define	CPSW_CH4   4
#define	CPSW_CH5   5
#define	CPSW_CH6   6
#define	CPSW_CH7   7
#define	CPSW_ALE_MAX_ENTRIES   512
#define	CPSW_ALE_WORD1_ENTRY_TYPE_MASK   (3 << 28)
#define	CPSW_ALE_WORD1_ENTRY_TYPE_FREE   (0 << 28)
#define	CPSW_ALE_WORD1_ENTRY_TYPE_ADDR   (1 << 28)
#define	CPSW_ALE_WORD1_ENTRY_TYPE_VLAN   (2 << 28)
#define	CPSW_ALE_WORD1_ENTRY_TYPE_VLAN_ADDR   (3 << 28)
#define	CPSW_ALE_WORD1_MULTICAST   (1 << 8)
#define	CPSW_ALE_WORD2_TRUNK   (1 << 4)
#define	CPSW_ALE_WORD2_PORT_NUMBER_MASK   (3 << 2)
#define	CPSW_ALE_WORD2_PORT_NUMBER(n)   ((n) << 2)
#define	CPSW_ALE_WORD2_BLOCK   (1 << 1)
#define	CPSW_ALE_WORD2_SECURE   (1 << 0)
#define	CPSW_ALE_WORD1_UNICAST_TYPE_MASK   (3 << 30)
#define	CPSW_ALE_WORD1_UNICAST_TYPE(n)   ((n) << 30)
#define	CPSW_ALE_WORD2_PORT_MASK_MASK   (3 << 2)
#define	CPSW_ALE_WORD2_PORT_MASK(n)   ((n) << 2)
#define	CPSW_ALE_WORD2_SUPER   (1 << 1)
#define	CPSW_ALE_WORD1_MCAST_FWD_STATE_MASK   (3 << 30)
#define	CPSW_ALE_WORD1_MCAST_FWD_STATE(n)   ((n) << 30)
#define	CPSW_ALE_WORD2_NO_LEARN_MASK_MASK   (7 << 2)
#define	CPSW_ALE_WORD2_NO_LEARN_MASK(n)   ((n) << 2)
#define	CPSW_ALE_WORD2_VLAN_FORCE_INGRESS_CHECK   (7 << 1)
#define	CPSW_ALE_WORD1_VLAN_ID_MASK   (4095 << 16)
#define	CPSW_ALE_WORD1_VLAN_ID(n)   ((n) << 16)
#define	CPSW_ALE_WORD1_NOFRAG   (1 << 15)
#define	CPSW_ALE_WORD1_REG_MCAST_FLOOD_INDEX_MASK   (7 << 4)
#define	CPSW_ALE_WORD1_REG_MCAST_FLOOD_INDEX(n)   ((n) << 4)
#define	CPSW_ALE_WORD0_FORCE_UNTAG_EGRESS_MASK   (7 << 24)
#define	CPSW_ALE_WORD0_FORCE_UNTAG_EGRESS(n)   ((n) << 24)
#define	CPSW_ALE_WORD0_LMTNXTHDR   (1 << 23)
#define	CPSW_ALE_WORD0_UREGMSK_MASK   (7 << 12)
#define	CPSW_ALE_WORD0_UREGMSK(n)   ((n) << 12)
#define	CPSW_ALE_WORD0_VLAN_MEMBER_LIST_MASK   (7 << 0)
#define	CPSW_ALE_WORD0_VLAN_MEMBER_LIST(n)   ((n) << 0)

Functions
error_t	am243xEthInitPort1 (NetInterface *interface)
	AM243x Ethernet MAC initialization (port 1) More...
error_t	am243xEthInitPort2 (NetInterface *interface)
	AM243x Ethernet MAC initialization (port 2) More...
void	am243xEthInitInstance (NetInterface *interface)
	Initialize CPSW instance. More...
void	am243xEthInitGpio (NetInterface *interface)
	GPIO configuration. More...
void	am243xEthTick (NetInterface *interface)
	AM243x Ethernet MAC timer handler. More...
void	am243xEthEnableIrq (NetInterface *interface)
	Enable interrupts. More...
void	am243xEthDisableIrq (NetInterface *interface)
	Disable interrupts. More...
void	am243xEthRxIrqHandler (void *arg)
	AM243x Ethernet MAC receive interrupt. More...
void	am243xEthEventHandler (NetInterface *interface)
	AM243x Ethernet MAC event handler. More...
error_t	am243xEthSendPacket (NetInterface *interface, const NetBuffer *buffer, size_t offset, NetTxAncillary *ancillary)
	Send a packet. More...
error_t	am243xEthUpdateMacAddrFilter (NetInterface *interface)
	Configure MAC address filtering. More...
error_t	am243xEthUpdateMacConfig (NetInterface *interface)
	Adjust MAC configuration parameters for proper operation. More...
void	am243xEthWritePhyReg (uint8_t opcode, uint8_t phyAddr, uint8_t regAddr, uint16_t data)
	Write PHY register. More...
uint16_t	am243xEthReadPhyReg (uint8_t opcode, uint8_t phyAddr, uint8_t regAddr)
	Read PHY register. More...
void	am243xEthWriteEntry (uint_t index, const Am64xAleEntry *entry)
	Write an ALE table entry. More...
void	am243xEthReadEntry (uint_t index, Am64xAleEntry *entry)
	Read an ALE table entry. More...
uint_t	am243xEthFindFreeEntry (void)
	Find a free entry in the ALE table. More...
uint_t	am243xEthFindVlanEntry (uint_t vlanId)
	Search the ALE table for the specified VLAN entry. More...
uint_t	am243xEthFindVlanAddrEntry (uint_t vlanId, MacAddr *macAddr)
	Search the ALE table for the specified VLAN/address entry. More...
error_t	am243xEthAddVlanEntry (uint_t port, uint_t vlanId)
	Add a VLAN entry in the ALE table. More...
error_t	am243xEthAddVlanAddrEntry (uint_t port, uint_t vlanId, MacAddr *macAddr)
	Add a VLAN/address entry in the ALE table. More...
error_t	am243xEthDeleteVlanAddrEntry (uint_t port, uint_t vlanId, MacAddr *macAddr)
	Remove a VLAN/address entry from the ALE table. More...

Variables
const NicDriver	am243xEthPort1Driver
	AM243x Ethernet MAC driver (port1) More...
const NicDriver	am243xEthPort2Driver
	AM243x Ethernet MAC driver (port2) More...

Detailed Description

AM243x Ethernet MAC driver.

License

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

Copyright (C) 2010-2024 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

2.4.4

Definition in file am243x_eth_driver.h.

Macro Definition Documentation

CPSW_ALE_MAX_ENTRIES

#define CPSW_ALE_MAX_ENTRIES   512

Definition at line 53 of file am243x_eth_driver.h.

CPSW_ALE_WORD0_FORCE_UNTAG_EGRESS

#define CPSW_ALE_WORD0_FORCE_UNTAG_EGRESS

(

n

)

((n) << 24)

Definition at line 89 of file am243x_eth_driver.h.

CPSW_ALE_WORD0_FORCE_UNTAG_EGRESS_MASK

#define CPSW_ALE_WORD0_FORCE_UNTAG_EGRESS_MASK   (7 << 24)

Definition at line 88 of file am243x_eth_driver.h.

CPSW_ALE_WORD0_LMTNXTHDR

#define CPSW_ALE_WORD0_LMTNXTHDR   (1 << 23)

Definition at line 90 of file am243x_eth_driver.h.

CPSW_ALE_WORD0_UREGMSK

#define CPSW_ALE_WORD0_UREGMSK

(

n

)

((n) << 12)

Definition at line 92 of file am243x_eth_driver.h.

CPSW_ALE_WORD0_UREGMSK_MASK

#define CPSW_ALE_WORD0_UREGMSK_MASK   (7 << 12)

Definition at line 91 of file am243x_eth_driver.h.

CPSW_ALE_WORD0_VLAN_MEMBER_LIST

#define CPSW_ALE_WORD0_VLAN_MEMBER_LIST

(

n

)

((n) << 0)

Definition at line 94 of file am243x_eth_driver.h.

CPSW_ALE_WORD0_VLAN_MEMBER_LIST_MASK

#define CPSW_ALE_WORD0_VLAN_MEMBER_LIST_MASK   (7 << 0)

Definition at line 93 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_ENTRY_TYPE_ADDR

#define CPSW_ALE_WORD1_ENTRY_TYPE_ADDR   (1 << 28)

Definition at line 58 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_ENTRY_TYPE_FREE

#define CPSW_ALE_WORD1_ENTRY_TYPE_FREE   (0 << 28)

Definition at line 57 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_ENTRY_TYPE_MASK

#define CPSW_ALE_WORD1_ENTRY_TYPE_MASK   (3 << 28)

Definition at line 56 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_ENTRY_TYPE_VLAN

#define CPSW_ALE_WORD1_ENTRY_TYPE_VLAN   (2 << 28)

Definition at line 59 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_ENTRY_TYPE_VLAN_ADDR

#define CPSW_ALE_WORD1_ENTRY_TYPE_VLAN_ADDR   (3 << 28)

Definition at line 60 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_MCAST_FWD_STATE

#define CPSW_ALE_WORD1_MCAST_FWD_STATE

(

n

)

((n) << 30)

Definition at line 77 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_MCAST_FWD_STATE_MASK

#define CPSW_ALE_WORD1_MCAST_FWD_STATE_MASK   (3 << 30)

Definition at line 76 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_MULTICAST

#define CPSW_ALE_WORD1_MULTICAST   (1 << 8)

Definition at line 61 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_NOFRAG

#define CPSW_ALE_WORD1_NOFRAG   (1 << 15)

Definition at line 85 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_REG_MCAST_FLOOD_INDEX

#define CPSW_ALE_WORD1_REG_MCAST_FLOOD_INDEX

(

n

)

((n) << 4)

Definition at line 87 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_REG_MCAST_FLOOD_INDEX_MASK

#define CPSW_ALE_WORD1_REG_MCAST_FLOOD_INDEX_MASK   (7 << 4)

Definition at line 86 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_UNICAST_TYPE

#define CPSW_ALE_WORD1_UNICAST_TYPE

(

n

)

((n) << 30)

Definition at line 70 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_UNICAST_TYPE_MASK

#define CPSW_ALE_WORD1_UNICAST_TYPE_MASK   (3 << 30)

Definition at line 69 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_VLAN_ID

#define CPSW_ALE_WORD1_VLAN_ID

(

n

)

((n) << 16)

Definition at line 84 of file am243x_eth_driver.h.

CPSW_ALE_WORD1_VLAN_ID_MASK

#define CPSW_ALE_WORD1_VLAN_ID_MASK   (4095 << 16)

Definition at line 83 of file am243x_eth_driver.h.

CPSW_ALE_WORD2_BLOCK

#define CPSW_ALE_WORD2_BLOCK   (1 << 1)

Definition at line 67 of file am243x_eth_driver.h.

CPSW_ALE_WORD2_NO_LEARN_MASK

#define CPSW_ALE_WORD2_NO_LEARN_MASK

(

n

)

((n) << 2)

Definition at line 81 of file am243x_eth_driver.h.

CPSW_ALE_WORD2_NO_LEARN_MASK_MASK

#define CPSW_ALE_WORD2_NO_LEARN_MASK_MASK   (7 << 2)

Definition at line 80 of file am243x_eth_driver.h.

CPSW_ALE_WORD2_PORT_MASK

#define CPSW_ALE_WORD2_PORT_MASK

(

n

)

((n) << 2)

Definition at line 74 of file am243x_eth_driver.h.

CPSW_ALE_WORD2_PORT_MASK_MASK

#define CPSW_ALE_WORD2_PORT_MASK_MASK   (3 << 2)

Definition at line 73 of file am243x_eth_driver.h.

CPSW_ALE_WORD2_PORT_NUMBER

#define CPSW_ALE_WORD2_PORT_NUMBER

(

n

)

((n) << 2)

Definition at line 66 of file am243x_eth_driver.h.

CPSW_ALE_WORD2_PORT_NUMBER_MASK

#define CPSW_ALE_WORD2_PORT_NUMBER_MASK   (3 << 2)

Definition at line 65 of file am243x_eth_driver.h.

CPSW_ALE_WORD2_SECURE

#define CPSW_ALE_WORD2_SECURE   (1 << 0)

Definition at line 68 of file am243x_eth_driver.h.

CPSW_ALE_WORD2_SUPER

#define CPSW_ALE_WORD2_SUPER   (1 << 1)

Definition at line 75 of file am243x_eth_driver.h.

CPSW_ALE_WORD2_TRUNK

#define CPSW_ALE_WORD2_TRUNK   (1 << 4)

Definition at line 64 of file am243x_eth_driver.h.

CPSW_ALE_WORD2_VLAN_FORCE_INGRESS_CHECK

#define CPSW_ALE_WORD2_VLAN_FORCE_INGRESS_CHECK   (7 << 1)

Definition at line 82 of file am243x_eth_driver.h.

CPSW_CH0

#define CPSW_CH0   0

Definition at line 43 of file am243x_eth_driver.h.

CPSW_CH1

#define CPSW_CH1   1

Definition at line 44 of file am243x_eth_driver.h.

CPSW_CH2

#define CPSW_CH2   2

Definition at line 45 of file am243x_eth_driver.h.

CPSW_CH3

#define CPSW_CH3   3

Definition at line 46 of file am243x_eth_driver.h.

CPSW_CH4

#define CPSW_CH4   4

Definition at line 47 of file am243x_eth_driver.h.

CPSW_CH5

#define CPSW_CH5   5

Definition at line 48 of file am243x_eth_driver.h.

CPSW_CH6

#define CPSW_CH6   6

Definition at line 49 of file am243x_eth_driver.h.

CPSW_CH7

#define CPSW_CH7   7

Definition at line 50 of file am243x_eth_driver.h.

CPSW_PORT0

#define CPSW_PORT0   0

Definition at line 38 of file am243x_eth_driver.h.

CPSW_PORT1

#define CPSW_PORT1   1

Definition at line 39 of file am243x_eth_driver.h.

CPSW_PORT2

#define CPSW_PORT2   2

Definition at line 40 of file am243x_eth_driver.h.

Function Documentation

am243xEthAddVlanAddrEntry()

error_t am243xEthAddVlanAddrEntry	(	uint_t	port,
		uint_t	vlanId,
		MacAddr *	macAddr
	)

Add a VLAN/address entry in the ALE table.

Parameters

[in]	port	Port number
[in]	vlanId	VLAN identifier
[in]	macAddr	MAC address

Returns

Error code

Definition at line 1405 of file am243x_eth_driver.c.

am243xEthAddVlanEntry()

error_t am243xEthAddVlanEntry	(	uint_t	port,
		uint_t	vlanId
	)

Add a VLAN entry in the ALE table.

Parameters

[in]	port	Port number
[in]	vlanId	VLAN identifier

Returns

Error code

Definition at line 1345 of file am243x_eth_driver.c.

am243xEthDeleteVlanAddrEntry()

error_t am243xEthDeleteVlanAddrEntry	(	uint_t	port,
		uint_t	vlanId,
		MacAddr *	macAddr
	)

Remove a VLAN/address entry from the ALE table.

Parameters

[in]	port	Port number
[in]	vlanId	VLAN identifier
[in]	macAddr	MAC address

Returns

Error code

Definition at line 1476 of file am243x_eth_driver.c.

am243xEthDisableIrq()

void am243xEthDisableIrq

(

NetInterface *

interface

)

Disable interrupts.

Parameters

[in]

interface

Underlying network interface

Definition at line 712 of file am243x_eth_driver.c.

am243xEthEnableIrq()

void am243xEthEnableIrq

(

NetInterface *

interface

)

Enable interrupts.

Parameters

[in]

interface

Underlying network interface

Definition at line 687 of file am243x_eth_driver.c.

am243xEthEventHandler()

void am243xEthEventHandler

(

NetInterface *

interface

)

AM243x Ethernet MAC event handler.

Parameters

[in]

interface

Underlying network interface

Definition at line 759 of file am243x_eth_driver.c.

am243xEthFindFreeEntry()

uint_t am243xEthFindFreeEntry

(

void

)

Find a free entry in the ALE table.

Returns

Index of the first free entry

Definition at line 1218 of file am243x_eth_driver.c.

am243xEthFindVlanAddrEntry()

uint_t am243xEthFindVlanAddrEntry	(	uint_t	vlanId,
		MacAddr *	macAddr
	)

Search the ALE table for the specified VLAN/address entry.

Parameters

[in]	vlanId	VLAN identifier
[in]	macAddr	MAC address

Returns

Index of the matching entry

Definition at line 1294 of file am243x_eth_driver.c.

am243xEthFindVlanEntry()

uint_t am243xEthFindVlanEntry

(

uint_t

vlanId

)

Search the ALE table for the specified VLAN entry.

Parameters

[in]

vlanId

VLAN identifier

Returns

Index of the matching entry

Definition at line 1252 of file am243x_eth_driver.c.

am243xEthInitGpio()

void am243xEthInitGpio

(

NetInterface *

interface

)

GPIO configuration.

Parameters

[in]

interface

Underlying network interface

Definition at line 581 of file am243x_eth_driver.c.

am243xEthInitInstance()

void am243xEthInitInstance

(

NetInterface *

interface

)

Initialize CPSW instance.

Parameters

[in]

interface

Underlying network interface

Definition at line 309 of file am243x_eth_driver.c.

am243xEthInitPort1()

error_t am243xEthInitPort1

(

NetInterface *

interface

)

AM243x Ethernet MAC initialization (port 1)

Parameters

[in]

interface

Underlying network interface

Returns

Error code

Definition at line 123 of file am243x_eth_driver.c.

am243xEthInitPort2()

error_t am243xEthInitPort2

(

NetInterface *

interface

)

AM243x Ethernet MAC initialization (port 2)

Parameters

[in]

interface

Underlying network interface

Returns

Error code

Definition at line 226 of file am243x_eth_driver.c.

am243xEthReadEntry()

void am243xEthReadEntry	(	uint_t	index,
		Am64xAleEntry *	entry
	)

Read an ALE table entry.

Parameters

[in]	index	Entry index
[out]	entry	Pointer to the ALE table entry

Definition at line 1196 of file am243x_eth_driver.c.

am243xEthReadPhyReg()

uint16_t am243xEthReadPhyReg	(	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 1119 of file am243x_eth_driver.c.

am243xEthRxIrqHandler()

void am243xEthRxIrqHandler

(

void *

arg

)

AM243x Ethernet MAC receive interrupt.

Parameters

[in]

arg

Unused parameter

Definition at line 737 of file am243x_eth_driver.c.

am243xEthSendPacket()

error_t am243xEthSendPacket	(	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 844 of file am243x_eth_driver.c.

am243xEthTick()

void am243xEthTick

(

NetInterface *

interface

)

AM243x 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 662 of file am243x_eth_driver.c.

am243xEthUpdateMacAddrFilter()

error_t am243xEthUpdateMacAddrFilter

(

NetInterface *

interface

)

Configure MAC address filtering.

Parameters

[in]

interface

Underlying network interface

Returns

Error code

Definition at line 940 of file am243x_eth_driver.c.

am243xEthUpdateMacConfig()

error_t am243xEthUpdateMacConfig

(

NetInterface *

interface

)

Adjust MAC configuration parameters for proper operation.

Parameters

[in]

interface

Underlying network interface

Returns

Error code

Definition at line 998 of file am243x_eth_driver.c.

am243xEthWriteEntry()

void am243xEthWriteEntry	(	uint_t	index,
		const Am64xAleEntry *	entry
	)

Write an ALE table entry.

Parameters

[in]	index	Entry index
[in]	entry	Pointer to the ALE table entry

Definition at line 1173 of file am243x_eth_driver.c.

am243xEthWritePhyReg()

void am243xEthWritePhyReg	(	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 1068 of file am243x_eth_driver.c.

Variable Documentation

am243xEthPort1Driver

const NicDriver am243xEthPort1Driver

extern

AM243x Ethernet MAC driver (port1)

Definition at line 71 of file am243x_eth_driver.c.

am243xEthPort2Driver

const NicDriver am243xEthPort2Driver

extern

AM243x Ethernet MAC driver (port2)

Definition at line 96 of file am243x_eth_driver.c.