usr/src/sys/vaxif/if_pclreg.h

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *      @(#)if_pclreg.h 7.1 (Berkeley) 6/5/86
 */

/*
 * DEC CSS PCL-11B Parallel Communications Interface
 */

struct pcldevice  {
        u_short pcl_tcr;        /* Transmitter Command Register */
        u_short pcl_tsr;        /* Transmitter Status Register */
        u_short pcl_tsdb;       /* Transmitter Source Data Buffer */
        short   pcl_tsbc;       /* Transmitter Source Byte Count */
        u_short pcl_tsba;       /* Transmitter Source Bus Address */
        u_short pcl_tmmr;       /* Transmitter Master/Maint Regs */
        u_short pcl_tscrc;      /* Transmitter Source CRC */
        u_short pcl_spare;
        u_short pcl_rcr;        /* Receiver Command Register */
        u_short pcl_rsr;        /* Receiver Status Register */
        u_short pcl_rddb;       /* Receiver Destination Data Buffer */
        short   pcl_rdbc;       /* Receiver Destination Byte Count */
        u_short pcl_rdba;       /* Receiver Destination Bus Address */
        u_short pcl_rdcrc;      /* Receiver Destination CRC */
};

/* Transmitter Command and Status Bits */
#define PCL_STTXM       (1<<0)          /* Start transmission */
#define PCL_TXINIT      (1<<1)          /* Transmitter Initialize */
#define PCL_IE          (1<<6)          /* Interrupt Enable */
#define PCL_SNDWD       (1<<13)         /* Send word */
#define PCL_TXNPR       (1<<14)         /* Transmitter NPR */
#define PCL_RIB         (1<<15)         /* Retry if busy */

#define PCL_RESPA       (3<<0)          /* Response A bits (tsr & rsr) */
#define PCL_RESPB       (3<<2)          /* Response B bits (tsr & rsr) */
#define PCL_MSTDWN      (1<<11)         /* Master down */
#define PCL_ERR         (1<<15)         /* Error summary */

#define PCL_MASTER      (1<<8)          /* Set MASTER status */
#define PCL_AUTOADDR    (1<<12)         /* Auto time slicing */

/* Receiver Command and Status Bits */
#define PCL_RCVDAT      (1<<0)          /* Receive data */
#define PCL_RCINIT      (1<<1)          /* Receiver Initialize */
#define PCL_RCVWD       (1<<13)         /* Receive word */
#define PCL_RCNPR       (1<<14)         /* Receive NRP */
#define PCL_REJ         (1<<15)         /* Reject transmission */

#define PCL_BCOFL       (1<<9)          /* Byte Counter Overflow */

#define PCL_TERRBITS    "\20\20ERR\17NXL\16MEM_OFL\15TXM_ERR\14MST_DWN\13TIM_OUT\12OVERRUN\11DTI_RDY\10SUC_TXF\07BUSY\06SOREJ\05TBS_BUSY"
#define PCL_TCSRBITS    "\20\20RIB\17TX_NPR\16SND_WD\10RD_SILO\07IE\04DTO_RDY\03INH_ADI\02TX_INIT\01START_TXM"

#define PCL_RERRBITS    "\20\20ERR\17NXL\16MEM_OFL\15TXM_ERR\14PARITY\13TIM_OUT\12BC_OFL\11DTO_RDY\10SUC_TXF\07BUSY\06REJ_COMP\05CHN_OPN"
#define PCL_RCSRBITS    "\20\20REJ\17RC_NPR\16RCV_WD\10LD_SILO\07IE\04DTI_RDY\03INH_ADI\02RC_INIT\01RCV_DAT"