EFM32 Happy Gecko Software Documentation  efm32hg-doc-5.1.2
ksz8851snl.c File Reference

Detailed Description

Driver for Micrel KSZ8851SNL Ethernet controller.

Version
5.1.1

License

Copyright 2015 Silicon Labs, Inc. http://www.silabs.com

This file is licensed under the Silabs License Agreement. See the file "Silabs_License_Agreement.txt" for details. Before using this software for any purpose, you must agree to the terms of that agreement.

Definition in file ksz8851snl.c.

#include <stdio.h>
#include "ksz8851snl.h"
#include "ksz8851snl_spi.h"
#include "em_assert.h"
#include "lwip/sys.h"
#include "lwipopts.h"
#include "debug.h"

Go to the source code of this file.

Macros

#define AUTO_NEG   0x1000
 
#define BLOCKING_RECEIVE   0
 
#define BYTE_MASK   0x00FF
 
#define BYTE_SIZE   0x0008
 
#define CHECKSUM_VALID_FRAME_MASK   0x3C17
 
#define CHIP_ID_MASK   0xFFF0
 
#define CIDER   0xC0
 
#define CLEAR_INT   0xFFFF
 
#define DIGITAL_LOOPBACK   0x4000
 
#define EXTRA_SIZE   0x0008
 
#define FCHWR   0xB2
 
#define FCLWR   0xB0
 
#define FD_PTR_AUTO_INC   0x4000
 
#define FORCE_100   0x2000
 
#define FORCE_FULL_DUPLEX   0x0100
 
#define FRAME_COUNT_THRESHOLD   1
 
#define FRAME_ID_MASK   0x003F
 
#define GLOBAL_SOFT_RESET   0x0001
 
#define GRR   0x26
 
#define HIGH_QMU_MAC_H   0x00
 
#define HIGH_QMU_MAC_L   0x0B
 
#define IACR   0xC8
 
#define IADHR   0xD2
 
#define IADLR   0xD0
 
#define IER   0x90
 
#define ISR   0x92
 
#define KSZ8851SNL_CHIP_ID   0x8870
 
#define LSB_MASK   0x00FF
 
#define MARH   0x14
 
#define MARL   0x10
 
#define MARM   0x12
 
#define MIB_MASK   0x1C00
 
#define MIB_Rx1024to1521Octets   0x13
 
#define MIB_Rx128to255Octets   0x10
 
#define MIB_Rx1522to2000Octets   0x14
 
#define MIB_Rx256to511Octets   0x11
 
#define MIB_Rx512to1023Octets   0x12
 
#define MIB_Rx64Octets   0x0E
 
#define MIB_Rx65to127Octets   0x0F
 
#define MIB_RxAlignmentError   0x08
 
#define MIB_RxBroadcast   0x0B
 
#define MIB_RxByte   0x00
 
#define MIB_RxControl8808Pkts   0x09
 
#define MIB_RxCRCError   0x07
 
#define MIB_RxFragments   0x03
 
#define MIB_RxJabbers   0x05
 
#define MIB_RxMulticast   0x0C
 
#define MIB_RxOversize   0x04
 
#define MIB_RxPausePkts   0x0A
 
#define MIB_RxSymbolError   0x06
 
#define MIB_RxUndersizePkt   0x02
 
#define MIB_RxUnicast   0x0D
 
#define MIB_TxBroadcastPkts   0x18
 
#define MIB_TxByte   0x15
 
#define MIB_TxDeferred   0x1B
 
#define MIB_TxExcessiveCollision   0x1D
 
#define MIB_TxLateCollision   0x16
 
#define MIB_TxMulticastPkts   0x19
 
#define MIB_TxMultipleCollision   0x1F
 
#define MIB_TxPausePkts   0x17
 
#define MIB_TxSingleCollision   0x1E
 
#define MIB_TxTotalCollision   0x1C
 
#define MIB_TxUnicastPkts   0x1A
 
#define MIB_XXX   0x01
 
#define MID_QMU_MAC_H   0x57
 
#define MSB_POS   0x0008
 
#define NO_INT   0x0000
 
#define OBCR   0x20
 
#define ONE_FRAME_THRES   0x0001
 
#define P1CR   0xF6
 
#define P1MBCR   0xE4
 
#define P1SR   0xF8
 
#define PHY_RESET   0x0001
 
#define PHYRR   0xD8
 
#define PMECR   0xD4
 
#define PORT1_AN_DONE   0x0040
 
#define PORT1_AUTO_MDIX_DISABLE   0x0400
 
#define PORT1_AUTO_NEG_100BTX   0x0004
 
#define PORT1_AUTO_NEG_100BTX_FD   0x0008
 
#define PORT1_AUTO_NEG_10BT   0x0001
 
#define PORT1_AUTO_NEG_10BT_FD   0x0002
 
#define PORT1_AUTO_NEG_ENABLE   0x0080
 
#define PORT1_AUTO_NEG_FLOW_CTRL   0x0010
 
#define PORT1_AUTO_NEG_RESTART   0x2000
 
#define PORT1_CONFIG
 
#define PORT1_FORCE_100_MBIT   0x0040
 
#define PORT1_FORCE_FULL_DUPLEX   0x0020
 
#define PORT1_FORCE_MDIX   0x0200
 
#define PORT1_LED_OFF   0x8000
 
#define PORT1_LINK_GOOD   0x0020
 
#define PORT1_POWER_DOWN   0x0800
 
#define PORT1_TX_DISABLE   0x4000
 
#define QMU_MODULE_SOFT_RESET   0x0002
 
#define RESTART_AUTO_NEG   0x0200
 
#define RX_BYTE_CNT_MASK   0x0FFF
 
#define RX_FLOW_CTRL1_CONFIG
 
#define RX_FLOW_CTRL2_CONFIG
 
#define RX_FLOW_CTRL_BAD_PACKET   0x0200
 
#define RX_FLOW_CTRL_BLOCK_MAC   0x0001
 
#define RX_FLOW_CTRL_BROADCAST_ENABLE   0x0080
 
#define RX_FLOW_CTRL_BURST_LEN_16   0x0040
 
#define RX_FLOW_CTRL_BURST_LEN_32   0x0060
 
#define RX_FLOW_CTRL_BURST_LEN_4   0x0000
 
#define RX_FLOW_CTRL_BURST_LEN_8   0x0020
 
#define RX_FLOW_CTRL_BURST_LEN_FRAME   0x0080
 
#define RX_FLOW_CTRL_BURST_LEN_MASK   0x00E0
 
#define RX_FLOW_CTRL_FLOW_ENENABLE   0x0400
 
#define RX_FLOW_CTRL_FLUSH_QUEUE   0x8000
 
#define RX_FLOW_CTRL_ICMP_CHECKSUM   0x0002
 
#define RX_FLOW_CTRL_INVERSE_FILTER   0x0002
 
#define RX_FLOW_CTRL_IP_CHECKSUM   0x1000
 
#define RX_FLOW_CTRL_IPV6_UDP_FRAG_PASS   0x0010
 
#define RX_FLOW_CTRL_IPV6_UDP_ZERO_PASS   0x0008
 
#define RX_FLOW_CTRL_MAC_FILTER   0x0800
 
#define RX_FLOW_CTRL_MULTICAST_ENABLE   0x0040
 
#define RX_FLOW_CTRL_PROMISCUOUS_MODE   0x0012
 
#define RX_FLOW_CTRL_RX_ALL   0x0010
 
#define RX_FLOW_CTRL_RX_ENABLE   0x0001
 
#define RX_FLOW_CTRL_TCP_CHECKSUM   0x2000
 
#define RX_FLOW_CTRL_UDP_CHECKSUM   0x4000
 
#define RX_FLOW_CTRL_UDP_LITE_CHECKSUM   0x0004
 
#define RX_FLOW_CTRL_UNICAST_ENABLE   0x0020
 
#define RXCR1   0x74
 
#define RXCR2   0x76
 
#define RXFCTR   0x9C
 
#define RXFDPR   0x86
 
#define RXFHBCR   0x7E
 
#define RXFHSR   0x7C
 
#define RXQ_AUTO_DEQUEUE   0x0010
 
#define RXQ_CMD_CONFIG
 
#define RXQ_EN_ON_BYTE_CNT_INT   0x0040
 
#define RXQ_EN_ON_FRAME_CNT_INT   0x0020
 
#define RXQ_EN_ON_TIME_INT   0x0080
 
#define RXQ_ON_BYTE_CNT_INT   0x0800
 
#define RXQ_ON_FRAME_CNT_INT   0x0400
 
#define RXQ_ON_TIME_INT   0x1000
 
#define RXQ_RELEASE_ERROR_FRAME   0x0001
 
#define RXQ_START_DMA   0x0008
 
#define RXQ_TWOBYTE_OFFSET   0x0200
 
#define RXQCR   0x82
 
#define TX_FLOW_CTRL_CONFIG
 
#define TX_FLOW_CTRL_CRC_ENABLE   0x0002
 
#define TX_FLOW_CTRL_ENABLE   0x0001
 
#define TX_FLOW_CTRL_FLOW_ENABLE   0x0008
 
#define TX_FLOW_CTRL_FLUSH_QUEUE   0x0010
 
#define TX_FLOW_CTRL_ICMP_CHECKSUM   0x0100
 
#define TX_FLOW_CTRL_IP_CHECKSUM   0x0020
 
#define TX_FLOW_CTRL_PAD_ENABLE   0x0004
 
#define TX_FLOW_CTRL_TCP_CHECKSUM   0x0040
 
#define TX_INT_on_COMPLETION   0x8000
 
#define TX_MEM_AVAIL_MASK   0x1FFF
 
#define TX_MEMORY_WAIT_MS   500
 
#define TXCR   0x70
 
#define TXFDPR   0x84
 
#define TXMIR   0x78
 
#define TXNTFSR   0x9E
 
#define TXQ_AUTO_ENQUEUE   0x0004
 
#define TXQ_ENQUEUE   0x0001
 
#define TXQ_MEM_AVAILABLE_INT   0x0002
 
#define TXQCR   0x80
 
#define VALID_FRAME_MASK   0x8000
 
#define WATERMARK_4KB   0x0400
 
#define WATERMARK_6KB   0x0600
 
#define WORD_SIZE   0x0004
 

Functions

void KSZ8851SNL_AllRegistersDump (void)
 Prints the value of the registers of the ethernet controller. More...
 
void KSZ8851SNL_Enable (void)
 Enable RX and TX.
 
uint16_t KSZ8851SNL_FrameCounterGet (void)
 FrameCounter.
 
void KSZ8851SNL_FrameCounterSet (void)
 FrameCounter.
 
void KSZ8851SNL_Init (void)
 Initialize the registers of the ethernet controller.
 
void KSZ8851SNL_IntClear (uint16_t flags)
 Clear interrupt flags. More...
 
void KSZ8851SNL_IntDisable (void)
 disables the chip interrupts
 
void KSZ8851SNL_IntEnable (void)
 enables the chip interrupts
 
uint16_t KSZ8851SNL_IntGet (void)
 Get interrupt flags.
 
void KSZ8851SNL_MacAddressGet (uint8_t *macAddress)
 Get the MAC address of the current board. More...
 
void KSZ8851SNL_MIBCountersDump (void)
 Dumps the Management Information Base Counters. More...
 
void KSZ8851SNL_MIBCountersUpdate (void)
 Update the Management Information Base Counters. More...
 
uint16_t KSZ8851SNL_PHYStatusGet (void)
 Get the PHY status.
 
void KSZ8851SNL_PMECRStatusClear (uint16_t flags)
 Clear PMECR (Power Management Event Control Register) flags. More...
 
uint16_t KSZ8851SNL_Receive (uint16_t length, uint8_t *buffer)
 Performs the actual receive of a raw frame over the network. More...
 
void KSZ8851SNL_RegistersDump (void)
 Prints the value of the registers of the ethernet controller. More...
 
uint16_t KSZ8851SNL_RXQCRGet (void)
 Get RXQCR register.
 
void KSZ8851SNL_RxQueueReset (void)
 Reset RxQueue.
 
void KSZ8851SNL_Transmit (uint16_t length, const uint8_t *buffer)
 Transmit a chunk of data to the ethernet controller. The chunk can be either a full ethernet frame or a partial chunk of an ethernet frame. More...
 
bool KSZ8851SNL_TransmitBegin (uint16_t length)
 Prepares for a transmission of an ethernet frame over the network. More...
 
void KSZ8851SNL_TransmitEnd (uint16_t length)
 Ends a transmission of an ethernet frame to the ethernet controller. More...
 
void KSZ8851SNL_TxQueueReset (void)
 Reset TxQueue.
 
static uint32_t MIBCountersRead (uint16_t offset)
 helper function for KSZ8851SNL_UpdateMIBCounters More...
 
static void ReleaseIncosistentFrame (void)
 Release the current frame if it is inconsistent. More...
 

Variables

static KSZ8851SLN_mib_t mibCounters
 Copy of the current MIB counters values from the ksz8851snl. This is updated by calling KSZ8851SNL_MIBCountersUpdate. More...
 

Macro Definition Documentation

#define AUTO_NEG   0x1000

Force auto negotiation

Definition at line 288 of file ksz8851snl.c.

#define BLOCKING_RECEIVE   0

Determines if receive will block

Definition at line 85 of file ksz8851snl.c.

#define BYTE_MASK   0x00FF

Used to mask the LSB

Definition at line 92 of file ksz8851snl.c.

#define BYTE_SIZE   0x0008

Used to mark the MSB pos

Definition at line 93 of file ksz8851snl.c.

#define CHECKSUM_VALID_FRAME_MASK   0x3C17

CRC OK for ICMP, IP, TCP, UDP MII error Frame too long error

Definition at line 69 of file ksz8851snl.c.

#define CHIP_ID_MASK   0xFFF0

Used to mask the revision ID

Definition at line 62 of file ksz8851snl.c.

#define CIDER   0xC0

Chip ID and Enable Register

Definition at line 51 of file ksz8851snl.c.

#define CLEAR_INT   0xFFFF

Used to clear INT_STATUS_REG

Definition at line 65 of file ksz8851snl.c.

#define DIGITAL_LOOPBACK   0x4000

Enable Digital loopback mode

Definition at line 284 of file ksz8851snl.c.

#define EXTRA_SIZE   0x0008

Needed for the frame header

Definition at line 84 of file ksz8851snl.c.

#define FCHWR   0xB2

Configure High Watermark to 4KByte

Definition at line 50 of file ksz8851snl.c.

#define FCLWR   0xB0

Configure Low Watermark to 6KByte

Definition at line 49 of file ksz8851snl.c.

#define FD_PTR_AUTO_INC   0x4000

Used to reset the FD pointer

Definition at line 64 of file ksz8851snl.c.

#define FORCE_100   0x2000

Force the speed to 100MBps

Definition at line 286 of file ksz8851snl.c.

#define FORCE_FULL_DUPLEX   0x0100

Force full duplex

Definition at line 292 of file ksz8851snl.c.

#define FRAME_COUNT_THRESHOLD   1

Receive Frame Count Threshold to use in RXFCTR

Definition at line 298 of file ksz8851snl.c.

#define FRAME_ID_MASK   0x003F

Used to mask the reserved bits

Definition at line 68 of file ksz8851snl.c.

#define GLOBAL_SOFT_RESET   0x0001

Global reset

Definition at line 277 of file ksz8851snl.c.

#define GRR   0x26

Global Reset Register

Definition at line 34 of file ksz8851snl.c.

#define HIGH_QMU_MAC_H   0x00

1st segment of the MAC address

Definition at line 89 of file ksz8851snl.c.

#define HIGH_QMU_MAC_L   0x0B

2nd segment of the MAC address

Definition at line 90 of file ksz8851snl.c.

#define IACR   0xC8

Indirect access control Register

Definition at line 52 of file ksz8851snl.c.

#define IADHR   0xD2

Indirect access data high Register

Definition at line 54 of file ksz8851snl.c.

#define IADLR   0xD0

Indirect access data low Register

Definition at line 53 of file ksz8851snl.c.

#define IER   0x90

Interrupt Enable Register

Definition at line 45 of file ksz8851snl.c.

#define ISR   0x92

Interrupt Status Register

Definition at line 46 of file ksz8851snl.c.

#define KSZ8851SNL_CHIP_ID   0x8870

Default Chip ID for KSZ8851SNL

Definition at line 61 of file ksz8851snl.c.

#define LSB_MASK   0x00FF

Used to mask the LSB

Definition at line 80 of file ksz8851snl.c.

#define MARH   0x14

MAC Address High

Definition at line 32 of file ksz8851snl.c.

#define MARL   0x10

MAC Address Low

Definition at line 30 of file ksz8851snl.c.

#define MARM   0x12

MAC Address Middle

Definition at line 31 of file ksz8851snl.c.

#define MIB_MASK   0x1C00

Management information base registers MIB Mask

Definition at line 301 of file ksz8851snl.c.

#define MIB_Rx1024to1521Octets   0x13

of received packets with size between 1024 and 1521 bytes

Definition at line 321 of file ksz8851snl.c.

#define MIB_Rx128to255Octets   0x10

of received packets with size between 128 and 255 bytes

Definition at line 318 of file ksz8851snl.c.

#define MIB_Rx1522to2000Octets   0x14

of received packets with size between 1522 and 2000 bytes

Definition at line 322 of file ksz8851snl.c.

#define MIB_Rx256to511Octets   0x11

of received packets with size between 256 and 511 bytes

Definition at line 319 of file ksz8851snl.c.

#define MIB_Rx512to1023Octets   0x12

of received packets with size between 512 and 1023 bytes

Definition at line 320 of file ksz8851snl.c.

#define MIB_Rx64Octets   0x0E

of received packets with size of 64 bytes

Definition at line 316 of file ksz8851snl.c.

#define MIB_Rx65to127Octets   0x0F

of received packets with size between 65 and 127 bytes

Definition at line 317 of file ksz8851snl.c.

#define MIB_RxAlignmentError   0x08

of received missaligned packets

Definition at line 310 of file ksz8851snl.c.

#define MIB_RxBroadcast   0x0B

of received broadcast packets

Definition at line 313 of file ksz8851snl.c.

#define MIB_RxByte   0x00

of received bytes

Definition at line 302 of file ksz8851snl.c.

#define MIB_RxControl8808Pkts   0x09

of received control packets

Definition at line 311 of file ksz8851snl.c.

#define MIB_RxCRCError   0x07

of received packets with CRC error

Definition at line 309 of file ksz8851snl.c.

#define MIB_RxFragments   0x03

of received fragments

Definition at line 305 of file ksz8851snl.c.

#define MIB_RxJabbers   0x05

of received jabbers

Definition at line 307 of file ksz8851snl.c.

#define MIB_RxMulticast   0x0C

of received multicast packets

Definition at line 314 of file ksz8851snl.c.

#define MIB_RxOversize   0x04

of received oversized packets

Definition at line 306 of file ksz8851snl.c.

#define MIB_RxPausePkts   0x0A

of received pause packets

Definition at line 312 of file ksz8851snl.c.

#define MIB_RxSymbolError   0x06

of received error symbols

Definition at line 308 of file ksz8851snl.c.

#define MIB_RxUndersizePkt   0x02

of received undersized packets

Definition at line 304 of file ksz8851snl.c.

#define MIB_RxUnicast   0x0D

of received unicast packets

Definition at line 315 of file ksz8851snl.c.

#define MIB_TxBroadcastPkts   0x18

of transmitted broadcast packets

Definition at line 326 of file ksz8851snl.c.

#define MIB_TxByte   0x15

of transmitted bytes

Definition at line 323 of file ksz8851snl.c.

#define MIB_TxDeferred   0x1B

of transmitted deferred packets

Definition at line 329 of file ksz8851snl.c.

#define MIB_TxExcessiveCollision   0x1D

of transmitted excessive collisions

Definition at line 331 of file ksz8851snl.c.

#define MIB_TxLateCollision   0x16

of transmitted late collision packets

Definition at line 324 of file ksz8851snl.c.

#define MIB_TxMulticastPkts   0x19

of transmitted multicast packets

Definition at line 327 of file ksz8851snl.c.

#define MIB_TxMultipleCollision   0x1F

of transmitted multiple collisions

Definition at line 333 of file ksz8851snl.c.

#define MIB_TxPausePkts   0x17

of transmitted pause packets

Definition at line 325 of file ksz8851snl.c.

#define MIB_TxSingleCollision   0x1E

of transmitted single collisions

Definition at line 332 of file ksz8851snl.c.

#define MIB_TxTotalCollision   0x1C

of transmitted total collisions

Definition at line 330 of file ksz8851snl.c.

#define MIB_TxUnicastPkts   0x1A

of transmitted unicast packets

Definition at line 328 of file ksz8851snl.c.

#define MIB_XXX   0x01

MIB Reserved byte

Definition at line 303 of file ksz8851snl.c.

#define MID_QMU_MAC_H   0x57

3rd segment of the MAC address

Definition at line 91 of file ksz8851snl.c.

#define MSB_POS   0x0008

Used to mark the MSB pos

Definition at line 81 of file ksz8851snl.c.

#define NO_INT   0x0000

Used to disable the interupts

Definition at line 66 of file ksz8851snl.c.

#define OBCR   0x20

On-Chip Bus Control Register

Definition at line 33 of file ksz8851snl.c.

#define ONE_FRAME_THRES   0x0001

RX INT after one frame

Definition at line 63 of file ksz8851snl.c.

#define P1CR   0xF6

Port 1 Control Register

Definition at line 58 of file ksz8851snl.c.

#define P1MBCR   0xE4

PHY1 MII-Register Basic Control Register

Definition at line 57 of file ksz8851snl.c.

#define P1SR   0xF8

Port 1 Status Register

Definition at line 59 of file ksz8851snl.c.

#define PHY_RESET   0x0001

PHY Reset Register Options

Definition at line 280 of file ksz8851snl.c.

#define PHYRR   0xD8

PHY Reset Register

Definition at line 56 of file ksz8851snl.c.

#define PMECR   0xD4

Power Managment Event Control Register

Definition at line 55 of file ksz8851snl.c.

#define PORT1_AN_DONE   0x0040

Auto-neg done

Definition at line 229 of file ksz8851snl.c.

#define PORT1_AUTO_MDIX_DISABLE   0x0400

Disable auto MDI/MDI-X

Definition at line 243 of file ksz8851snl.c.

#define PORT1_AUTO_NEG_100BTX   0x0004

Advertise 100BT half-duplex capability

Definition at line 257 of file ksz8851snl.c.

#define PORT1_AUTO_NEG_100BTX_FD   0x0008

Advertise 100BT full-duplex capability

Definition at line 255 of file ksz8851snl.c.

#define PORT1_AUTO_NEG_10BT   0x0001

Advertise 10BT half-duplex capability

Definition at line 261 of file ksz8851snl.c.

#define PORT1_AUTO_NEG_10BT_FD   0x0002

Advertise 10BT full-duplex capability

Definition at line 259 of file ksz8851snl.c.

#define PORT1_AUTO_NEG_ENABLE   0x0080

Enable auto-negotiation

Definition at line 247 of file ksz8851snl.c.

#define PORT1_AUTO_NEG_FLOW_CTRL   0x0010

Advertise flow control capability

Definition at line 253 of file ksz8851snl.c.

#define PORT1_AUTO_NEG_RESTART   0x2000

Restart auto-negotiation

Definition at line 239 of file ksz8851snl.c.

#define PORT1_CONFIG
Value:
PORT1_FORCE_100_MBIT | \
PORT1_FORCE_FULL_DUPLEX | \
PORT1_AUTO_NEG_FLOW_CTRL | \
PORT1_AUTO_NEG_100BTX_FD | \
PORT1_AUTO_NEG_100BTX | \
PORT1_AUTO_NEG_10BT_FD | \
PORT1_AUTO_NEG_10BT )
#define PORT1_AUTO_NEG_ENABLE
Definition: ksz8851snl.c:247

PHY Port default config P1CR

Definition at line 264 of file ksz8851snl.c.

#define PORT1_FORCE_100_MBIT   0x0040

Force PHY 100Mbps

Definition at line 249 of file ksz8851snl.c.

#define PORT1_FORCE_FULL_DUPLEX   0x0020

Force PHY in full duplex mode

Definition at line 251 of file ksz8851snl.c.

#define PORT1_FORCE_MDIX   0x0200

Force MDI-X

Definition at line 245 of file ksz8851snl.c.

#define PORT1_LED_OFF   0x8000

Turn off port LEDs

Definition at line 235 of file ksz8851snl.c.

#define PORT1_LINK_GOOD   0x0020

Link good

Definition at line 231 of file ksz8851snl.c.

#define PORT1_POWER_DOWN   0x0800

Set port power-down

Definition at line 241 of file ksz8851snl.c.

#define PORT1_TX_DISABLE   0x4000

Disable port transmit

Definition at line 237 of file ksz8851snl.c.

#define QMU_MODULE_SOFT_RESET   0x0002

QMU Reset

Definition at line 275 of file ksz8851snl.c.

#define RESTART_AUTO_NEG   0x0200

Restart auto negotiation

Definition at line 290 of file ksz8851snl.c.

#define RX_BYTE_CNT_MASK   0x0FFF

Used to mask the reserved bits

Definition at line 79 of file ksz8851snl.c.

#define RX_FLOW_CTRL1_CONFIG
Value:
RX_FLOW_CTRL_TCP_CHECKSUM | \
RX_FLOW_CTRL_IP_CHECKSUM | \
RX_FLOW_CTRL_MAC_FILTER | \
RX_FLOW_CTRL_FLOW_ENENABLE | \
RX_FLOW_CTRL_BROADCAST_ENABLE | \
RX_FLOW_CTRL_UNICAST_ENABLE)
#define RX_FLOW_CTRL_UDP_CHECKSUM
Definition: ksz8851snl.c:135

RX FLOW CONTROL1 Initialization collection

Definition at line 162 of file ksz8851snl.c.

#define RX_FLOW_CTRL2_CONFIG
Value:
RX_FLOW_CTRL_UDP_LITE_CHECKSUM | \
RX_FLOW_CTRL_ICMP_CHECKSUM | \
RX_FLOW_CTRL_BURST_LEN_FRAME)
#define RX_FLOW_CTRL_IPV6_UDP_FRAG_PASS
Definition: ksz8851snl.c:185

RX FLOW CONTROL2 Initialization collection

Definition at line 196 of file ksz8851snl.c.

#define RX_FLOW_CTRL_BAD_PACKET   0x0200

Enable Receive Error Frames

Definition at line 145 of file ksz8851snl.c.

#define RX_FLOW_CTRL_BLOCK_MAC   0x0001

Receive Source Address Filtering

Definition at line 193 of file ksz8851snl.c.

#define RX_FLOW_CTRL_BROADCAST_ENABLE   0x0080

Enable Receive Broadcast frames

Definition at line 147 of file ksz8851snl.c.

#define RX_FLOW_CTRL_BURST_LEN_16   0x0040

16 Bytes length

Definition at line 179 of file ksz8851snl.c.

#define RX_FLOW_CTRL_BURST_LEN_32   0x0060

32 Bytes length

Definition at line 181 of file ksz8851snl.c.

#define RX_FLOW_CTRL_BURST_LEN_4   0x0000

4 bytes length

Definition at line 175 of file ksz8851snl.c.

#define RX_FLOW_CTRL_BURST_LEN_8   0x0020

8 Bytes length

Definition at line 177 of file ksz8851snl.c.

#define RX_FLOW_CTRL_BURST_LEN_FRAME   0x0080

Full frame length

Definition at line 183 of file ksz8851snl.c.

#define RX_FLOW_CTRL_BURST_LEN_MASK   0x00E0

Receive Flow Control Burst Length mask

Definition at line 173 of file ksz8851snl.c.

#define RX_FLOW_CTRL_FLOW_ENENABLE   0x0400

Enable Receive Flow Control

Definition at line 143 of file ksz8851snl.c.

#define RX_FLOW_CTRL_FLUSH_QUEUE   0x8000

Flush Receive Queue

Definition at line 133 of file ksz8851snl.c.

#define RX_FLOW_CTRL_ICMP_CHECKSUM   0x0002

Enable ICMP frame

Definition at line 191 of file ksz8851snl.c.

#define RX_FLOW_CTRL_INVERSE_FILTER   0x0002

Receive Inverse Filtering

Definition at line 157 of file ksz8851snl.c.

#define RX_FLOW_CTRL_IP_CHECKSUM   0x1000

Enable Receive IP Frame Checksum Check

Definition at line 139 of file ksz8851snl.c.

#define RX_FLOW_CTRL_IPV6_UDP_FRAG_PASS   0x0010

IPV4/IPV6/UDP Fragment Frame Pass

Definition at line 185 of file ksz8851snl.c.

#define RX_FLOW_CTRL_IPV6_UDP_ZERO_PASS   0x0008

IPV4/IPV6/UDP Frame Checksum Equal Zero

Definition at line 187 of file ksz8851snl.c.

#define RX_FLOW_CTRL_MAC_FILTER   0x0800

Receive Physical Address Filtering with MAC Address Enable

Definition at line 141 of file ksz8851snl.c.

#define RX_FLOW_CTRL_MULTICAST_ENABLE   0x0040

Enable Receive Multicast frames

Definition at line 149 of file ksz8851snl.c.

#define RX_FLOW_CTRL_PROMISCUOUS_MODE   0x0012

Receive all incoming frames

Definition at line 153 of file ksz8851snl.c.

#define RX_FLOW_CTRL_RX_ALL   0x0010

Receive all frames

Definition at line 155 of file ksz8851snl.c.

#define RX_FLOW_CTRL_RX_ENABLE   0x0001

Enable receive

Definition at line 159 of file ksz8851snl.c.

#define RX_FLOW_CTRL_TCP_CHECKSUM   0x2000

Enable Receive TCP Frame Checksum Check

Definition at line 137 of file ksz8851snl.c.

#define RX_FLOW_CTRL_UDP_CHECKSUM   0x4000

Enable Receive UDP Frame Checksum Check

Definition at line 135 of file ksz8851snl.c.

#define RX_FLOW_CTRL_UDP_LITE_CHECKSUM   0x0004

Enable UDP Lite frame

Definition at line 189 of file ksz8851snl.c.

#define RX_FLOW_CTRL_UNICAST_ENABLE   0x0020

Enable Receive Unicast frames

Definition at line 151 of file ksz8851snl.c.

#define RXCR1   0x74

Receive Flow Control Register 1

Definition at line 36 of file ksz8851snl.c.

#define RXCR2   0x76

Receive Flow Control Register 2

Definition at line 37 of file ksz8851snl.c.

#define RXFCTR   0x9C

RX Frame Count & Threshold Register

Definition at line 47 of file ksz8851snl.c.

#define RXFDPR   0x86

RX Frame Data Pointer Register

Definition at line 44 of file ksz8851snl.c.

#define RXFHBCR   0x7E

Receive Frame Header Bytecount Register

Definition at line 40 of file ksz8851snl.c.

#define RXFHSR   0x7C

Receive Frame Header Status Register

Definition at line 39 of file ksz8851snl.c.

#define RXQ_AUTO_DEQUEUE   0x0010

Enable Auto Dequeue RXQ Frame

Definition at line 217 of file ksz8851snl.c.

#define RXQ_CMD_CONFIG
Value:
RXQ_AUTO_DEQUEUE)
#define RXQ_EN_ON_FRAME_CNT_INT
Definition: ksz8851snl.c:215

RX COMMAND Initialization collection

Definition at line 224 of file ksz8851snl.c.

#define RXQ_EN_ON_BYTE_CNT_INT   0x0040

Enable RX interrupt on byte count threshold

Definition at line 213 of file ksz8851snl.c.

#define RXQ_EN_ON_FRAME_CNT_INT   0x0020

Enable RX interrupt on frame count threshold

Definition at line 215 of file ksz8851snl.c.

#define RXQ_EN_ON_TIME_INT   0x0080

Enable RX interrupt on timer duration

Definition at line 211 of file ksz8851snl.c.

#define RXQ_ON_BYTE_CNT_INT   0x0800

RX interrupt is occured on byte count threshold

Definition at line 205 of file ksz8851snl.c.

#define RXQ_ON_FRAME_CNT_INT   0x0400

RX interrupt is occured on frame count threshold

Definition at line 207 of file ksz8851snl.c.

#define RXQ_ON_TIME_INT   0x1000

RX interrupt is occured on timer duration

Definition at line 203 of file ksz8851snl.c.

#define RXQ_RELEASE_ERROR_FRAME   0x0001

Release RX Error Frame

Definition at line 221 of file ksz8851snl.c.

#define RXQ_START_DMA   0x0008

Start QMU transfer operation

Definition at line 219 of file ksz8851snl.c.

#define RXQ_TWOBYTE_OFFSET   0x0200

Enable adding 2-bytes offset before IP frame header

Definition at line 209 of file ksz8851snl.c.

#define RXQCR   0x82

RXQ Command Register

Definition at line 42 of file ksz8851snl.c.

#define TX_FLOW_CTRL_CONFIG
Value:
TX_FLOW_CTRL_TCP_CHECKSUM | \
TX_FLOW_CTRL_IP_CHECKSUM | \
TX_FLOW_CTRL_FLOW_ENABLE | \
TX_FLOW_CTRL_PAD_ENABLE | \
TX_FLOW_CTRL_CRC_ENABLE)
#define TX_FLOW_CTRL_ICMP_CHECKSUM
Definition: ksz8851snl.c:98

TX FLOW CONTROL Initialization collection

Definition at line 115 of file ksz8851snl.c.

#define TX_FLOW_CTRL_CRC_ENABLE   0x0002

Transmit CRC Enable

Definition at line 110 of file ksz8851snl.c.

#define TX_FLOW_CTRL_ENABLE   0x0001

Enable tranmsit

Definition at line 112 of file ksz8851snl.c.

#define TX_FLOW_CTRL_FLOW_ENABLE   0x0008

Transmit flow control enable

Definition at line 106 of file ksz8851snl.c.

#define TX_FLOW_CTRL_FLUSH_QUEUE   0x0010

Flush Transmit Queue

Definition at line 104 of file ksz8851snl.c.

#define TX_FLOW_CTRL_ICMP_CHECKSUM   0x0100

Enable Transmit Checksum Generation for ICMP

Definition at line 98 of file ksz8851snl.c.

#define TX_FLOW_CTRL_IP_CHECKSUM   0x0020

Enable Transmit Checksum Generation for IP

Definition at line 102 of file ksz8851snl.c.

#define TX_FLOW_CTRL_PAD_ENABLE   0x0004

Transmit Padding enable

Definition at line 108 of file ksz8851snl.c.

#define TX_FLOW_CTRL_TCP_CHECKSUM   0x0040

Enable Transmit Checksum Generation for TCP

Definition at line 100 of file ksz8851snl.c.

#define TX_INT_on_COMPLETION   0x8000

TX INT on completion

Definition at line 82 of file ksz8851snl.c.

#define TX_MEM_AVAIL_MASK   0x1FFF

Used to mask the reserved bits

Definition at line 67 of file ksz8851snl.c.

#define TX_MEMORY_WAIT_MS   500

wait time in ms for TX memory to be available

Definition at line 295 of file ksz8851snl.c.

#define TXCR   0x70

Transmit Flow Control Register

Definition at line 35 of file ksz8851snl.c.

#define TXFDPR   0x84

TX Frame Data Pointer Register

Definition at line 43 of file ksz8851snl.c.

#define TXMIR   0x78

TXQ Memory Information Register

Definition at line 38 of file ksz8851snl.c.

#define TXNTFSR   0x9E

TX Next Frame size register

Definition at line 48 of file ksz8851snl.c.

#define TXQ_AUTO_ENQUEUE   0x0004

Enable Auto-Enqueue TXQ Frame

Definition at line 124 of file ksz8851snl.c.

#define TXQ_ENQUEUE   0x0001

Enable Manual Engueue TXQ Frame

Definition at line 128 of file ksz8851snl.c.

#define TXQ_MEM_AVAILABLE_INT   0x0002

Enable INT generation when TXQ Memory Available

Definition at line 126 of file ksz8851snl.c.

#define TXQCR   0x80

TXQ Command Register

Definition at line 41 of file ksz8851snl.c.

#define VALID_FRAME_MASK   0x8000

RXFV Receive Frame Valid of the RXFHSR register

Definition at line 75 of file ksz8851snl.c.

#define WATERMARK_4KB   0x0400

4KByte Watermark

Definition at line 87 of file ksz8851snl.c.

#define WATERMARK_6KB   0x0600

6KByte Watermark

Definition at line 86 of file ksz8851snl.c.

#define WORD_SIZE   0x0004

Word size in # of bytes

Definition at line 83 of file ksz8851snl.c.

Function Documentation

static uint32_t MIBCountersRead ( uint16_t  offset)
static

helper function for KSZ8851SNL_UpdateMIBCounters

Parameters
[in]offsetThe offset specifies which MIB counter you want to read
Returns
The value of the MIB Counter

Definition at line 365 of file ksz8851snl.c.

static void ReleaseIncosistentFrame ( void  )
static

Release the current frame if it is inconsistent.

Note
Support method used for minimizing the code size.

Definition at line 855 of file ksz8851snl.c.

Variable Documentation

KSZ8851SLN_mib_t mibCounters
static

Copy of the current MIB counters values from the ksz8851snl. This is updated by calling KSZ8851SNL_MIBCountersUpdate.

The datasheet recommends that the MIB counter values are read at least every 30 seconds because of counter overflow possibility.

Definition at line 353 of file ksz8851snl.c.