include/asm-mips/dec/serial.h

   1 /*
   2  *      include/asm-mips/dec/serial.h
   3  *
   4  *      Definitions common to all DECstation serial devices.
   5  *
   6  *      Copyright (C) 2004  Maciej W. Rozycki
   7  *
   8  *      Based on bits extracted from drivers/tc/zs.h for which
   9  *      the following copyrights apply:
  10  *
  11  *      Copyright (C) 1995  David S. Miller (davem@caip.rutgers.edu)
  12  *      Copyright (C) 1996  Paul Mackerras (Paul.Mackerras@cs.anu.edu.au)
  13  *      Copyright (C)       Harald Koerfgen
  14  *
  15  *      This program is free software; you can redistribute it and/or
  16  *      modify it under the terms of the GNU General Public License
  17  *      as published by the Free Software Foundation; either version
  18  *      2 of the License, or (at your option) any later version.
  19  */
  20 #ifndef __ASM_MIPS_DEC_SERIAL_H
  21 #define __ASM_MIPS_DEC_SERIAL_H
  22
  23 struct dec_serial_hook {
  24         int (*init_channel)(void *handle);
  25         void (*init_info)(void *handle);
  26         void (*rx_char)(unsigned char ch, unsigned char fl);
  27         int (*poll_rx_char)(void *handle);
  28         int (*poll_tx_char)(void *handle, unsigned char ch);
  29         unsigned int cflags;
  30 };
  31
  32 extern int register_dec_serial_hook(unsigned int channel,
  33                                     struct dec_serial_hook *hook);
  34 extern int unregister_dec_serial_hook(unsigned int channel);
  35
  36 #endif /* __ASM_MIPS_DEC_SERIAL_H */