📄 ethernet.h
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#ifndef _ethernet_H_
#define _ethernet_H_
typedef unsigned int regaddress;
#define BUFLENTH 768
#define TIME_OUT 0x10000000
#define SMC_BASE_ADDRESS 0x2000000
#define reg10 Baseaddress //Control register
#define reg11 (Baseaddress+0x2) //Status register
#define reg12 (Baseaddress+0x4) //PHY ID
#define reg13 (Baseaddress+0x6) //PHY ID
#define reg14 (Baseaddress+0x8) //Auto-Negotiation Advertisement
#define reg15 (Baseaddress+0xa) //Auto-Negotiation Remote End Capability
#define reg20 (Baseaddress+0x20) //Configuration1
#define reg21 (Baseaddress+0x22) //Configuration1
#define reg22 (Baseaddress+0x24) //Status Output
#define reg23 (Baseaddress+0x26) //Mask
#define reg24 (Baseaddress+0x28) //Reserved
#define IOBase 0x2000300
//BANK0 BANK1 BANK2 BANK3
#define reg00 IOBase //TCR CONFIG MMU COMMAND MT0-1
#define reg01 (IOBase+0x2) //EPH STATUS BASE PNR MT2-3
#define reg02 (IOBase+0x4) //RCR IA0-1 FIFO PORTS MT4-5
#define reg03 (IOBase+0x6) //COUNTER IA2-3 POINTER MT6-7
#define reg04 (IOBase+0x8) //MIR IA4-5 DATA MGMT
#define reg05 (IOBase+0xa) //RPCR GENERAL DATA REVISION
#define reg06 (IOBase+0xc) //RESERVED CONTROL INTERRUPT ERCV
#define reg07 (IOBase+0xe) //BANK BANK BANK BANK
#define BANK_SELECT 14
// Transmit Control Register
/* BANK 0 */
#define TCR_REG 0x0000 // transmit control register
#define TCR_ENABLE 0x0001 // When 1 we can transmit
#define TCR_LOOP 0x0002 // Controls output pin LBK
#define TCR_FORCOL 0x0004 // When 1 will force a collision
#define TCR_PAD_EN 0x0080 // When 1 will pad tx frames < 64 bytes w/0
#define TCR_NOCRC 0x0100 // When 1 will not append CRC to tx frames
#define TCR_MON_CSN 0x0400 // When 1 tx monitors carrier
#define TCR_FDUPLX 0x0800 // When 1 enables full duplex operation
#define TCR_STP_SQET 0x1000 // When 1 stops tx if Signal Quality Error
#define TCR_EPH_LOOP 0x2000 // When 1 enables EPH block loopback
#define TCR_SWFDUP 0x8000 // When 1 enables Switched Full Duplex mode
#define TCR_CLEAR 0 /* do NOTHING */
/* the default settings for the TCR register : */
/* QUESTION: do I want to enable padding of short packets ? */
#define TCR_DEFAULT TCR_ENABLE
// EPH Status Register
/* BANK 0 */
#define EPH_STATUS_REG 0x0002
#define ES_TX_SUC 0x0001 // Last TX was successful
#define ES_SNGL_COL 0x0002 // Single collision detected for last tx
#define ES_MUL_COL 0x0004 // Multiple collisions detected for last tx
#define ES_LTX_MULT 0x0008 // Last tx was a multicast
#define ES_16COL 0x0010 // 16 Collisions Reached
#define ES_SQET 0x0020 // Signal Quality Error Test
#define ES_LTXBRD 0x0040 // Last tx was a broadcast
#define ES_TXDEFR 0x0080 // Transmit Deferred
#define ES_LATCOL 0x0200 // Late collision detected on last tx
#define ES_LOSTCARR 0x0400 // Lost Carrier Sense
#define ES_EXC_DEF 0x0800 // Excessive Deferral
#define ES_CTR_ROL 0x1000 // Counter Roll Over indication
#define ES_LINK_OK 0x4000 // Driven by inverted value of nLNK pin
#define ES_TXUNRN 0x8000 // Tx Underrun
// Receive Control Register
/* BANK 0 */
#define RCR_REG 0x0004
#define RCR_RX_ABORT 0x0001 // Set if a rx frame was aborted
#define RCR_PRMS 0x0002 // Enable promiscuous mode
#define RCR_ALMUL 0x0004 // When set accepts all multicast frames
#define RCR_RXEN 0x0100 // IFF this is set, we can receive packets
#define RCR_STRIP_CRC 0x0200 // When set strips CRC from rx packets
#define RCR_ABORT_ENB 0x0200 // When set will abort rx on collision
#define RCR_FILT_CAR 0x0400 // When set filters leading 12 bit s of carrier
#define RCR_SOFTRST 0x8000 // resets the chip
/* the normal settings for the RCR register : */
#define RCR_DEFAULT (RCR_STRIP_CRC | RCR_RXEN)
#define RCR_CLEAR 0x0 // set it to a base state
// Counter Register
/* BANK 0 */
#define COUNTER_REG 0x0006
// Memory Information Register
/* BANK 0 */
#define MIR_REG 0x0008
// Receive/Phy Control Register
/* BANK 0 */
#define RPC_REG 0x000A
#define RPC_SPEED 0x2000 // When 1 PHY is in 100Mbps mode.
#define RPC_DPLX 0x1000 // When 1 PHY is in Full-Duplex Mode
#define RPC_ANEG 0x0800 // When 1 PHY is in Auto-Negotiate Mode
#define RPC_LSXA_SHFT 5 // Bits to shift LS2A,LS1A,LS0A to lsb
#define RPC_LSXB_SHFT 2 // Bits to get LS2B,LS1B,LS0B to lsb
#define RPC_LED_100_10 (0x00) // LED = 100Mbps OR's with 10Mbps link detect
#define RPC_LED_RES (0x01) // LED = Reserved
#define RPC_LED_10 (0x02) // LED = 10Mbps link detect
#define RPC_LED_FD (0x03) // LED = Full Duplex Mode
#define RPC_LED_TX_RX (0x04) // LED = TX or RX packet occurred
#define RPC_LED_100 (0x05) // LED = 100Mbps link dectect
#define RPC_LED_TX (0x06) // LED = TX packet occurred
#define RPC_LED_RX (0x07) // LED = RX packet occurred
//#define RPC_DEFAULT (RPC_ANEG | (RPC_LED_100 << RPC_LSXA_SHFT) | (RPC_LED_FD << RPC_LSXB_SHFT) | RPC_SPEED | RPC_DPLX)
/* Now set 2 LED as 100M link(LEDA) and RX_TX(LEDB)*/
#define RPC_DEFAULT (RPC_ANEG | (RPC_LED_100_10 << RPC_LSXA_SHFT) | (RPC_LED_TX_RX << RPC_LSXB_SHFT) | RPC_SPEED | RPC_DPLX)
/* Bank 0 0x000C is reserved */
// Bank Select Register
/* All Banks */
#define BSR_REG 0x000E
// Configuration Reg
/* BANK 1 */
#define CONFIG_REG 0x0000
#define CONFIG_EXT_PHY 0x0200 // 1=external MII, 0=internal Phy
#define CONFIG_GPCNTRL 0x0400 // Inverse value drives pin nCNTRL
#define CONFIG_NO_WAIT 0x1000 // When 1 no extra wait states on ISA bus
#define CONFIG_EPH_POWER_EN 0x8000 // When 0 EPH is placed into low power mode.
// Default is powered-up, Internal Phy, Wait States, and pin nCNTRL=low
#define CONFIG_DEFAULT (CONFIG_EPH_POWER_EN)
// Base Address Register
/* BANK 1 */
#define BASE_REG 0x0002
// Individual Address Registers
/* BANK 1 */
#define ADDR0_REG 0x0004
#define ADDR1_REG 0x0006
#define ADDR2_REG 0x0008
// General Purpose Register
/* BANK 1 */
#define GP_REG 0x000A
// Control Register
/* BANK 1 */
#define CTL_REG 0x000C
#define CTL_RCV_BAD 0x4000 // When 1 bad CRC packets are received
#define CTL_AUTO_RELEASE 0x0800 // When 1 tx pages are released automatically
#define CTL_LE_ENABLE 0x0080 // When 1 enables Link Error interrupt
#define CTL_CR_ENABLE 0x0040 // When 1 enables Counter Rollover interrupt
#define CTL_TE_ENABLE 0x0020 // When 1 enables Transmit Error interrupt
#define CTL_EEPROM_SELECT 0x0004 // Controls EEPROM reload & store
#define CTL_RELOAD 0x0002 // When set reads EEPROM into registers
#define CTL_STORE 0x0001 // When set stores registers into EEPROM
#define CTL_DEFAULT (0x1210)
// MMU Command Register
/* BANK 2 */
#define MMU_CMD_REG 0x0000
#define MC_BUSY 1 // When 1 the last release has not completed
#define MC_NOP (0<<5) // No Op
#define MC_ALLOC (1<<5) // OR with number of 256 byte packets
#define MC_RESET (2<<5) // Reset MMU to initial state
#define MC_REMOVE (3<<5) // Remove the current rx packet
#define MC_RELEASE (4<<5) // Remove and release the current rx packet
#define MC_FREEPKT (5<<5) // Release packet in PNR register
#define MC_ENQUEUE (6<<5) // Enqueue the packet for transmit
#define MC_RSTTXFIFO (7<<5) // Reset the TX FIFOs
// Packet Number Register
/* BANK 2 */
#define PN_REG 0x0002
// Allocation Result Register
/* BANK 2 */
#define AR_REG 0x0003
#define AR_FAILED 0x80 // Alocation Failed
// RX FIFO Ports Register
/* BANK 2 */
#define RXFIFO_REG 0x0004 // Must be read as a word
#define RXFIFO_REMPTY 0x8000 // RX FIFO Empty
// TX FIFO Ports Register
/* BANK 2 */
#define TXFIFO_REG RXFIFO_REG // Must be read as a word
#define TXFIFO_TEMPTY 0x80 // TX FIFO Empty
// Pointer Register
/* BANK 2 */
#define PTR_REG 0x0006
#define PTR_RCV 0x8000 // 1=Receive area, 0=Transmit area
#define PTR_AUTOINC 0x4000 // Auto increment the pointer on each access
#define PTR_READ 0x2000 // When 1 the operation is a read
#define PTR_NOTEMPT 0x0800 // When read 1, Write Data FIFO is not empty.
// Data Register
/* BANK 2 */
#define DATA_REG 0x0008
// Interrupt Status/Acknowledge Register
/* BANK 2 */
#define INT_REG 0x000C
// Interrupt Mask Register
/* BANK 2 */
#define IM_REG 0x000D
#define IM_MDINT 0x80 // PHY MI Register 18 Interrupt
#define IM_ERCV_INT 0x40 // Early Receive Interrupt
#define IM_EPH_INT 0x20 // Set by Etheret Protocol Handler section
#define IM_RX_OVRN_INT 0x10 // Set by Receiver Overruns
#define IM_ALLOC_INT 0x08 // Set when allocation request is completed
#define IM_TX_EMPTY_INT 0x04 // Set if the TX FIFO goes empty
#define IM_TX_INT 0x02 // Transmit Interrrupt
#define IM_RCV_INT 0x01 // Receive Interrupt
// Multicast Table Registers
/* BANK 3 */
#define MCAST_REG1 0x0000
#define MCAST_REG2 0x0002
#define MCAST_REG3 0x0004
#define MCAST_REG4 0x0006
// Management Interface Register (MII)
/* BANK 3 */
#define MII_REG 0x0008
#define MII_MSK_CRS100 0x4000 // Disables CRS100 detection during tx half dup
#define MII_MDOE 0x0008 // MII Output Enable
#define MII_MCLK 0x0004 // MII Clock, pin MDCLK
#define MII_MDI 0x0002 // MII Input, pin MDI
#define MII_MDO 0x0001 // MII Output, pin MDO
// Revision Register
/* BANK 3 */
#define REV_REG 0x000A /* ( hi: chip id low: rev # ) */
// Early RCV Register
/* BANK 3 */
/* this is NOT on SMC9192 */
#define ERCV_REG 0x000C
#define ERCV_RCV_DISCRD 0x0080 // When 1 discards a packet being received
#define ERCV_THRESHOLD 0x001F // ERCV Threshold Mask
/*
. Transmit status bits
*/
#define TS_SUCCESS 0x0001
#define TS_LOSTCAR 0x0400
#define TS_LATCOL 0x0200
#define TS_16COL 0x0010
/*
. Receive status bits
*/
#define RS_ALGNERR 0x8000
#define RS_BRODCAST 0x4000
#define RS_BADCRC 0x2000
#define RS_ODDFRAME 0x1000 // bug: the LAN91C111 never sets this on receive
#define RS_TOOLONG 0x0800
#define RS_TOOSHORT 0x0400
#define RS_MULTICAST 0x0001
#define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
// PHY Register Addresses (LAN91C111 Internal PHY)
// PHY Control Register
#define PHY_CNTL_REG 0x00
#define PHY_CNTL_RST 0x8000 // 1=PHY Reset
#define PHY_CNTL_LPBK 0x4000 // 1=PHY Loopback
#define PHY_CNTL_SPEED 0x2000 // 1=100Mbps, 0=10Mpbs
#define PHY_CNTL_ANEG_EN 0x1000 // 1=Enable Auto negotiation
#define PHY_CNTL_PDN 0x0800 // 1=PHY Power Down mode
#define PHY_CNTL_MII_DIS 0x0400 // 1=MII 4 bit interface disabled
#define PHY_CNTL_ANEG_RST 0x0200 // 1=Reset Auto negotiate
#define PHY_CNTL_DPLX 0x0100 // 1=Full Duplex, 0=Half Duplex
#define PHY_CNTL_COLTST 0x0080 // 1= MII Colision Test
// PHY Status Register
#define PHY_STAT_REG 0x01
#define PHY_STAT_CAP_T4 0x8000 // 1=100Base-T4 capable
#define PHY_STAT_CAP_TXF 0x4000 // 1=100Base-X full duplex capable
#define PHY_STAT_CAP_TXH 0x2000 // 1=100Base-X half duplex capable
#define PHY_STAT_CAP_TF 0x1000 // 1=10Mbps full duplex capable
#define PHY_STAT_CAP_TH 0x0800 // 1=10Mbps half duplex capable
#define PHY_STAT_CAP_SUPR 0x0040 // 1=recv mgmt frames with not preamble
#define PHY_STAT_ANEG_ACK 0x0020 // 1=ANEG has completed
#define PHY_STAT_REM_FLT 0x0010 // 1=Remote Fault detected
#define PHY_STAT_CAP_ANEG 0x0008 // 1=Auto negotiate capable
#define PHY_STAT_LINK 0x0004 // 1=valid link
#define PHY_STAT_JAB 0x0002 // 1=10Mbps jabber condition
#define PHY_STAT_EXREG 0x0001 // 1=extended registers implemented
// PHY Identifier Registers
#define PHY_ID1_REG 0x02 // PHY Identifier 1
#define PHY_ID2_REG 0x03 // PHY Identifier 2
// PHY Auto-Negotiation Advertisement Register
#define PHY_AD_REG 0x04
#define PHY_AD_NP 0x8000 // 1=PHY requests exchange of Next Page
#define PHY_AD_ACK 0x4000 // 1=got link code word from remote
#define PHY_AD_RF 0x2000 // 1=advertise remote fault
#define PHY_AD_T4 0x0200 // 1=PHY is capable of 100Base-T4
#define PHY_AD_TX_FDX 0x0100 // 1=PHY is capable of 100Base-TX FDPLX
#define PHY_AD_TX_HDX 0x0080 // 1=PHY is capable of 100Base-TX HDPLX
#define PHY_AD_10_FDX 0x0040 // 1=PHY is capable of 10Base-T FDPLX
#define PHY_AD_10_HDX 0x0020 // 1=PHY is capable of 10Base-T HDPLX
#define PHY_AD_CSMA 0x0001 // 1=PHY is capable of 802.3 CMSA
// PHY Auto-negotiation Remote End Capability Register
#define PHY_RMT_REG 0x05
// Uses same bit definitions as PHY_AD_REG
// PHY Configuration Register 1
#define PHY_CFG1_REG 0x10
#define PHY_CFG1_LNKDIS 0x8000 // 1=Rx Link Detect Function disabled
#define PHY_CFG1_XMTDIS 0x4000 // 1=TP Transmitter Disabled
#define PHY_CFG1_XMTPDN 0x2000 // 1=TP Transmitter Powered Down
#define PHY_CFG1_BYPSCR 0x0400 // 1=Bypass scrambler/descrambler
#define PHY_CFG1_UNSCDS 0x0200 // 1=Unscramble Idle Reception Disable
#define PHY_CFG1_EQLZR 0x0100 // 1=Rx Equalizer Disabled
#define PHY_CFG1_CABLE 0x0080 // 1=STP(150ohm), 0=UTP(100ohm)
#define PHY_CFG1_RLVL0 0x0040 // 1=Rx Squelch level reduced by 4.5db
#define PHY_CFG1_TLVL_SHIFT 2 // Transmit Output Level Adjust
#define PHY_CFG1_TLVL_MASK 0x003C
#define PHY_CFG1_TRF_MASK 0x0003 // Transmitter Rise/Fall time
// PHY Configuration Register 2
#define PHY_CFG2_REG 0x11
#define PHY_CFG2_APOLDIS 0x0020 // 1=Auto Polarity Correction disabled
#define PHY_CFG2_JABDIS 0x0010 // 1=Jabber disabled
#define PHY_CFG2_MREG 0x0008 // 1=Multiple register access (MII mgt)
#define PHY_CFG2_INTMDIO 0x0004 // 1=Interrupt signaled with MDIO pulseo
// PHY Status Output (and Interrupt status) Register
#define PHY_INT_REG 0x12 // Status Output (Interrupt Status)
#define PHY_INT_INT 0x8000 // 1=bits have changed since last read
#define PHY_INT_LNKFAIL 0x4000 // 1=Link Not detected
#define PHY_INT_LOSSSYNC 0x2000 // 1=Descrambler has lost sync
#define PHY_INT_CWRD 0x1000 // 1=Invalid 4B5B code detected on rx
#define PHY_INT_SSD 0x0800 // 1=No Start Of Stream detected on rx
#define PHY_INT_ESD 0x0400 // 1=No End Of Stream detected on rx
#define PHY_INT_RPOL 0x0200 // 1=Reverse Polarity detected
#define PHY_INT_JAB 0x0100 // 1=Jabber detected
#define PHY_INT_SPDDET 0x0080 // 1=100Base-TX mode, 0=10Base-T mode
#define PHY_INT_DPLXDET 0x0040 // 1=Device in Full Duplex
// PHY Interrupt/Status Mask Register
#define PHY_MASK_REG 0x13 // Interrupt Mask
// Uses the same bit definitions as PHY_INT_REG
// External Register
/* BANK 7 */
#define EXT_REG 0x0000
void ethernet( void );
#endif
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