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 */
37