uart.h

   1 #ifndef __UART_H_LOADED
   2 #define __UART_H_LOADED
   3 /*****************************************************************************
   4
   5        Copyright © 1993, 1994 Digital Equipment Corporation,
   6                        Maynard, Massachusetts.
   7
   8                         All Rights Reserved
   9
  10 Permission to use, copy, modify, and distribute this software and its
  11 documentation for any purpose and without fee is hereby granted, provided
  12 that the copyright notice and this permission notice appear in all copies
  13 of software and supporting documentation, and that the name of Digital not
  14 be used in advertising or publicity pertaining to distribution of the software
  15 without specific, written prior permission. Digital grants this permission
  16 provided that you prominently mark, as not part of the original, any
  17 modifications made to this software or documentation.
  18
  19 Digital Equipment Corporation disclaims all warranties and/or guarantees
  20 with regard to this software, including all implied warranties of fitness for
  21 a particular purpose and merchantability, and makes no representations
  22 regarding the use of, or the results of the use of, the software and
  23 documentation in terms of correctness, accuracy, reliability, currentness or
  24 otherwise; and you rely on the software, documentation and results solely at
  25 your own risk.
  26
  27 ******************************************************************************/
  28
  29 #define com1Rbr 0x3f8
  30 #define com1Thr 0x3f8
  31 #define com1Ier 0x3f9
  32 #define com1Iir 0x3fa
  33 #define com1Lcr 0x3fb
  34 #define com1Mcr 0x3fc
  35 #define com1Lsr 0x3fd
  36 #define com1Msr 0x3fe
  37 #define com1Scr 0x3ff
  38 #define com1Dll 0x3f8
  39 #define com1Dlm 0x3f9
  40
  41 #define com2Rbr 0x2f8
  42 #define com2Thr 0x2f8
  43 #define com2Ier 0x2f9
  44 #define com2Iir 0x2fa
  45 #define com2Lcr 0x2fb
  46 #define com2Mcr 0x2fc
  47 #define com2Lsr 0x2fd
  48 #define com2Msr 0x2fe
  49 #define com2Scr 0x2ff
  50 #define com2Dll 0x2f8
  51 #define com2Dlm 0x2f9
  52
  53 #define COM1    (com1Rbr - com2Rbr)
  54 #define COM2    0
  55
  56 #ifndef __ASSEMBLER__
  57
  58 extern int uart_charav(int port);
  59 extern int uart_getchar(int port);
  60 extern void uart_putchar_raw(int port, char c);
  61 extern void uart_putchar(int port, char c);
  62 extern void uart_puts(int port, const char *s);
  63 extern void uart_init_line(int port, int baud);
  64 extern void uart_init(void);
  65
  66 #endif /* __ASSEMBLER__ */
  67 #endif /* __UART_H_LOADED */