/* $NetBSD: dlreg.h,v 1.6 2005/12/11 12:23:29 christos Exp $ */ /* * Ben Harris, 1997 * * This file is in the Public Domain. */ /* * dlreg.h -- Definitions for the DL11 and DLV11 serial cards. * * Style in imitation of dzreg.h. */ #ifdef notdef union w_b { u_short word; struct { u_char byte_lo; u_char byte_hi; } bytes; }; struct DLregs { volatile u_short dl_rcsr; /* Receive Control/Status Register (R/W) */ volatile u_short dl_rbuf; /* Receive Buffer (R) */ volatile u_short dl_xcsr; /* Transmit Control/Status Register (R/W) */ volatile union w_b u_xbuf; /* Transmit Buffer (W) */ #define dl_xbuf u_xbuf.bytes.byte_lo }; typedef struct DLregs dlregs; #endif #define DL_UBA_RCSR 0 #define DL_UBA_RBUF 2 #define DL_UBA_XCSR 4 #define DL_UBA_XBUFL 6 /* RCSR bits */ #define DL_RCSR_RX_DONE 0x0080 /* Receiver Done (R) */ #define DL_RCSR_RXIE 0x0040 /* Receiver Interrupt Enable (R/W) */ #define DL_RCSR_READER_ENABLE 0x0001 /* [paper-tape] Reader Enable (W) */ #define DL_RCSR_BITS "\20\1READER_ENABLE\7RXIE\10RX_DONE\n" /* RBUF bits */ #define DL_RBUF_ERR 0x8000 /* Error (R) */ #define DL_RBUF_OVERRUN_ERR 0x4000 /* Overrun Error (R) */ #define DL_RBUF_FRAMING_ERR 0x2000 /* Framing Error (R) */ #define DL_RBUF_PARITY_ERR 0x1000 /* Parity Error (R) */ #define DL_RBUF_DATA_MASK 0x00FF /* Receive Data (R) */ #define DL_RBUF_BITS "\20\15PARITY_ERR\16FRAMING_ERR\17OVERRUN_ERR\20ERR\n" /* XCSR bits */ #define DL_XCSR_TX_READY 0x0080 /* Transmitter Ready (R) */ #define DL_XCSR_TXIE 0x0040 /* Transmit Interrupt Enable (R/W) */ #define DL_XCSR_TX_BREAK 0x0001 /* Transmit Break (R/W) */ #define DL_XCSR_BITS "\20\1TX_BREAK\7TXIE\10TX_READY\n" /* XBUF is just data byte right justified. */ |