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/* $FreeBSD: release/9.1.0/sys/dev/snc/dp83932reg.h 139749 2005-01-06 01:43:34Z imp $ */
/* $NecBSD: dp83932reg.h,v 1.2 1999/02/12 05:50:13 kmatsuda Exp $ */
/* $NetBSD: if_snreg.h,v 1.4 1997/06/15 20:20:12 scottr Exp $ */
/*-
* Copyright (c) 1991 Algorithmics Ltd (http://www.algor.co.uk)
* You may use, copy, and modify this program so long as you retain the
* copyright line.
*/
/*
* if_snreg.h -- National Semiconductor DP8393X (SONIC) register defs
*/
/*
* SONIC registers as seen by the processor
*/
#define SNCR_CR 0x00 /* Command */
#define SNCR_DCR 0x01 /* Data Configuration */
#define SNCR_RCR 0x02 /* Receive Control */
#define SNCR_TCR 0x03 /* Transmit Control */
#define SNCR_IMR 0x04 /* Interrupt Mask */
#define SNCR_ISR 0x05 /* Interrupt Status */
#define SNCR_UTDA 0x06 /* Upper Transmit Descriptor Address */
#define SNCR_CTDA 0x07 /* Current Transmit Descriptor Address */
#define SNCR_TPS 0x08 /* Transmit Packet Size */
#define SNCR_TFC 0x09 /* Transmit Fragment Count */
#define SNCR_TSA0 0x0a /* Transmit Start Address 0 */
#define SNCR_TSA1 0x0b /* Transmit Start Address 1 */
#define SNCR_TFS 0x0c /* Transmit Fragment Size */
#define SNCR_URDA 0x0d /* Upper Receive Descriptor Address */
#define SNCR_CRDA 0x0e /* Current Receive Descriptor Address */
#define SNCR_CRBA0 0x0f /* Current Receive Buffer Address 0 */
#define SNCR_CRBA1 0x10 /* Current Receive Buffer Address 1 */
#define SNCR_RBWC0 0x11 /* Remaining Buffer Word Count 0 */
#define SNCR_RBWC1 0x12 /* Remaining Buffer Word Count 1 */
#define SNCR_EOBC 0x13 /* End Of Buffer Word Count */
#define SNCR_URRA 0x14 /* Upper Receive Resource Address */
#define SNCR_RSA 0x15 /* Resource Start Address */
#define SNCR_REA 0x16 /* Resource End Address */
#define SNCR_RRP 0x17 /* Resource Read Pointer */
#define SNCR_RWP 0x18 /* Resource Write Pointer */
#define SNCR_TRBA0 0x19 /* Temporary Receive Buffer Address 0 */
#define SNCR_TRBA1 0x1a /* Temporary Receive Buffer Address 1 */
#define SNCR_TBWC0 0x1b /* Temporary Buffer Word Count 0 */
#define SNCR_TBWC1 0x1c /* Temporary Buffer Word Count 1 */
#define SNCR_ADDR0 0x1d /* Address Generator 0 */
#define SNCR_ADDR1 0x1e /* Address Generator 1 */
#define SNCR_LLFA 0x1f /* Last Link Field Address */
#define SNCR_TTDA 0x20 /* Temp Transmit Descriptor Address */
#define SNCR_CEP 0x21 /* CAM Entry Pointer */
#define SNCR_CAP2 0x22 /* CAM Address Port 2 */
#define SNCR_CAP1 0x23 /* CAM Address Port 1 */
#define SNCR_CAP0 0x24 /* CAM Address Port 0 */
#define SNCR_CE 0x25 /* CAM Enable */
#define SNCR_CDP 0x26 /* CAM Descriptor Pointer */
#define SNCR_CDC 0x27 /* CAM Descriptor Count */
#define SNCR_SR 0x28 /* Silicon Revision */
#define SNCR_WT0 0x29 /* Watchdog Timer 0 */
#define SNCR_WT1 0x2a /* Watchdog Timer 1 */
#define SNCR_RSC 0x2b /* Receive Sequence Counter */
#define SNCR_CRCT 0x2c /* CRC Error Tally */
#define SNCR_FAET 0x2d /* FAE Tally */
#define SNCR_MPT 0x2e /* Missed Packet Tally */
#define SNCR_MDT 0x2f /* Maximum Deferral Timer */
#define SNCR_RTC 0x30 /* Receive Test Control */
#define SNCR_TTC 0x31 /* Transmit Test Control */
#define SNCR_DTC 0x32 /* DMA Test Control */
#define SNCR_CC0 0x33 /* CAM Comparison 0 */
#define SNCR_CC1 0x34 /* CAM Comparison 1 */
#define SNCR_CC2 0x35 /* CAM Comparison 2 */
#define SNCR_CM 0x36 /* CAM Match */
#define SNCR_RES1 0x37 /* reserved */
#define SNCR_RES2 0x38 /* reserved */
#define SNCR_RBC 0x39 /* Receiver Byte Count */
#define SNCR_RES3 0x3a /* reserved */
#define SNCR_TBO 0x3b /* Transmitter Backoff Counter */
#define SNCR_TRC 0x3c /* Transmitter Random Counter */
#define SNCR_TBM 0x3d /* Transmitter Backoff Mask */
#define SNCR_RES4 0x3e /* Reserved */
#define SNCR_DCR2 0x3f /* Data Configuration 2 (AVF) */
#define SNC_NREGS 0x40
/*
* Register Interpretations
*/
/*
* The command register is used for issuing commands to the SONIC.
* With the exception of CR_RST, the bit is reset when the operation
* completes.
*/
#define CR_LCAM 0x0200 /* load CAM with descriptor at s_cdp */
#define CR_RRRA 0x0100 /* read next RRA descriptor at s_rrp */
#define CR_RST 0x0080 /* software reset */
#define CR_ST 0x0020 /* start timer */
#define CR_STP 0x0010 /* stop timer */
#define CR_RXEN 0x0008 /* receiver enable */
#define CR_RXDIS 0x0004 /* receiver disable */
#define CR_TXP 0x0002 /* transmit packets */
#define CR_HTX 0x0001 /* halt transmission */
/*
* The data configuration register establishes the SONIC's bus cycle
* operation. This register can only be accessed when the SONIC is in
* reset mode (s_cr.CR_RST is set.)
*/
#define DCR_EXBUS 0x8000 /* extended bus mode (AVF) */
#define DCR_LBR 0x2000 /* latched bus retry */
#define DCR_PO1 0x1000 /* programmable output 1 */
#define DCR_PO0 0x0800 /* programmable output 0 */
#define DCR_STERM 0x0400 /* synchronous termination */
#define DCR_USR1 0x0200 /* reflects USR1 input pin */
#define DCR_USR0 0x0100 /* reflects USR0 input pin */
#define DCR_WC1 0x0080 /* wait state control 1 */
#define DCR_WC0 0x0040 /* wait state control 0 */
#define DCR_DW 0x0020 /* data width select */
#define DCR_BMS 0x0010 /* DMA block mode select */
#define DCR_RFT1 0x0008 /* receive FIFO threshold control 1 */
#define DCR_RFT0 0x0004 /* receive FIFO threshold control 0 */
#define DCR_TFT1 0x0002 /* transmit FIFO threshold control 1 */
#define DCR_TFT0 0x0001 /* transmit FIFO threshold control 0 */
/* data configuration register aliases */
#define DCR_SYNC DCR_STERM /* synchronous (memory cycle 2 clocks) */
#define DCR_ASYNC 0 /* asynchronous (memory cycle 3 clocks) */
#define DCR_WAIT0 0 /* 0 wait states added */
#define DCR_WAIT1 DCR_WC0 /* 1 wait state added */
#define DCR_WAIT2 DCR_WC1 /* 2 wait states added */
#define DCR_WAIT3 (DCR_WC1|DCR_WC0) /* 3 wait states added */
#define DCR_DW16 0 /* use 16-bit DMA accesses */
#define DCR_DW32 DCR_DW /* use 32-bit DMA accesses */
#define DCR_DMAEF 0 /* DMA until TX/RX FIFO has emptied/filled */
#define DCR_DMABLOCK DCR_BMS /* DMA until RX/TX threshold crossed */
#define DCR_RFT4 0 /* receive threshold 4 bytes */
#define DCR_RFT8 DCR_RFT0 /* receive threshold 8 bytes */
#define DCR_RFT16 DCR_RFT1 /* receive threshold 16 bytes */
#define DCR_RFT24 (DCR_RFT1|DCR_RFT0) /* receive threshold 24 bytes */
#define DCR_TFT8 0 /* transmit threshold 8 bytes */
#define DCR_TFT16 DCR_TFT0 /* transmit threshold 16 bytes */
#define DCR_TFT24 DCR_TFT1 /* transmit threshold 24 bytes */
#define DCR_TFT28 (DCR_TFT1|DCR_TFT0) /* transmit threshold 28 bytes */
/*
* The receive control register is used to filter incoming packets and
* provides status information on packets received.
* The contents of the register are copied into the RXpkt.status field
* when a packet is received. RCR_MC - RCR_PRX are then reset.
*/
#define RCR_ERR 0x8000 /* accept packets with CRC errors */
#define RCR_RNT 0x4000 /* accept runt (length < 64) packets */
#define RCR_BRD 0x2000 /* accept broadcast packets */
#define RCR_PRO 0x1000 /* accept all physical address packets */
#define RCR_AMC 0x0800 /* accept all multicast packets */
#define RCR_LB1 0x0400 /* loopback control 1 */
#define RCR_LB0 0x0200 /* loopback control 0 */
#define RCR_MC 0x0100 /* multicast packet received */
#define RCR_BC 0x0080 /* broadcast packet received */
#define RCR_LPKT 0x0040 /* last packet in RBA (RBWC < EOBC) */
#define RCR_CRS 0x0020 /* carrier sense activity */
#define RCR_COL 0x0010 /* collision activity */
#define RCR_CRC 0x0008 /* CRC error */
#define RCR_FAE 0x0004 /* frame alignment error */
#define RCR_LBK 0x0002 /* loopback packet received */
#define RCR_PRX 0x0001 /* packet received without errors */
/* receiver control register aliases */
/* the loopback control bits provide the following options */
#define RCR_LBNONE 0 /* no loopback - normal operation */
#define RCR_LBMAC RCR_LB0 /* MAC loopback */
#define RCR_LBENDEC RCR_LB1 /* ENDEC loopback */
#define RCR_LBTRANS (RCR_LB1|RCR_LB0) /* transceiver loopback */
/*
* The transmit control register controls the SONIC's transmit operations.
* TCR_PINT - TCR_EXDIS are loaded from the TXpkt.config field at the
* start of transmission. TCR_EXD-TCR_PTX are cleared at the beginning
* of transmission and updated when the transmission is completed.
*/
#define TCR_PINT 0x8000 /* interrupt when transmission starts */
#define TCR_POWC 0x4000 /* program out of window collision timer */
#define TCR_CRCI 0x2000 /* transmit packet without 4 byte FCS */
#define TCR_EXDIS 0x1000 /* disable excessive deferral timer */
#define TCR_EXD 0x0400 /* excessive deferrals occurred (>3.2ms) */
#define TCR_DEF 0x0200 /* deferred transmissions occurred */
#define TCR_NCRS 0x0100 /* carrier not present during transmission */
#define TCR_CRSL 0x0080 /* carrier lost during transmission */
#define TCR_EXC 0x0040 /* excessive collisions (>16) detected */
#define TCR_OWC 0x0020 /* out of window (bad) collision occurred */
#define TCR_PMB 0x0008 /* packet monitored bad - the tansmitted
* packet had a bad source address or CRC */
#define TCR_FU 0x0004 /* FIFO underrun (memory access failed) */
#define TCR_BCM 0x0002 /* byte count mismatch (TXpkt.pkt_size
* != sum(TXpkt.frag_size) */
#define TCR_PTX 0x0001 /* packet transmitted without errors */
#define TCR_NC 0xf000 /* after transmission, # of colls */
/* transmit control register aliases */
#define TCR_OWCSFD 0 /* start after start of frame delimiter */
#define TCR_OWCPRE TCR_POWC /* start after first bit of preamble */
/*
* The interrupt mask register masks the interrupts that
* are generated from the interrupt status register.
* All reserved bits should be written with 0.
*/
#define IMR_BREN 0x4000 /* bus retry occurred enable */
#define IMR_HBLEN 0x2000 /* heartbeat lost enable */
#define IMR_LCDEN 0x1000 /* load CAM done interrupt enable */
#define IMR_PINTEN 0x0800 /* programmable interrupt enable */
#define IMR_PRXEN 0x0400 /* packet received enable */
#define IMR_PTXEN 0x0200 /* packet transmitted enable */
#define IMR_TXEREN 0x0100 /* transmit error enable */
#define IMR_TCEN 0x0080 /* timer complete enable */
#define IMR_RDEEN 0x0040 /* receive descriptors exhausted enable */
#define IMR_RBEEN 0x0020 /* receive buffers exhausted enable */
#define IMR_RBAEEN 0x0010 /* receive buffer area exceeded enable */
#define IMR_CRCEN 0x0008 /* CRC tally counter rollover enable */
#define IMR_FAEEN 0x0004 /* FAE tally counter rollover enable */
#define IMR_MPEN 0x0002 /* MP tally counter rollover enable */
#define IMR_RFOEN 0x0001 /* receive FIFO overrun enable */
/*
* The interrupt status register indicates the source of an interrupt when
* the INT pin goes active. The interrupt is acknowledged by writing
* the appropriate bit(s) in this register.
*/
#define ISR_ALL 0x7fff /* all interrupts */
#define ISR_BR 0x4000 /* bus retry occurred */
#define ISR_HBL 0x2000 /* CD heartbeat lost */
#define ISR_LCD 0x1000 /* load CAM command has completed */
#define ISR_PINT 0x0800 /* programmed interrupt from TXpkt.config */
#define ISR_PKTRX 0x0400 /* packet received */
#define ISR_TXDN 0x0200 /* no remaining packets to be transmitted */
#define ISR_TXER 0x0100 /* packet transmission caused error */
#define ISR_TC 0x0080 /* timer complete */
#define ISR_RDE 0x0040 /* receive descriptors exhausted */
#define ISR_RBE 0x0020 /* receive buffers exhausted */
#define ISR_RBAE 0x0010 /* receive buffer area exceeded */
#define ISR_CRC 0x0008 /* CRC tally counter rollover */
#define ISR_FAE 0x0004 /* FAE tally counter rollover */
#define ISR_MP 0x0002 /* MP tally counter rollover */
#define ISR_RFO 0x0001 /* receive FIFO overrun */
/*
* The second data configuration register allows additional user defined
* pins to be controlled. These bits are only available if s_dcr.DCR_EXBUS
* is set.
*/
#define DCR2_EXPO3 0x8000 /* EXUSR3 output */
#define DCR2_EXPO2 0x4000 /* EXUSR2 output */
#define DCR2_EXPO1 0x2000 /* EXUSR1 output */
#define DCR2_EXPO0 0x1000 /* EXUSR0 output */
#define DCR2_HD 0x0800 /* heart beat disable (83934/83936) */
#define DCR2_JD 0x0200 /* TPI jabber timer disable (83934/83936) */
#define DCR2_AUTO 0x0100 /* AUI/TPI auto selection (83934/83936) */
#define DCR2_XWRAP 0x0040 /* TPI transceiver loopback (83934/83936) */
#define DCR2_FD 0x0020 /* full duplex (83936) */
#define DCR2_PHL 0x0010 /* extend HOLD signal by 1/2 clock */
#define DCR2_LRDY 0x0008 /* set latched ready mode */
#define DCR2_PCM 0x0004 /* packet compress on match */
#define DCR2_PCNM 0x0002 /* packet compress on mismatch */
#define DCR2_RJM 0x0001 /* reject on match */