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1da177e4 LT |
1 | /* |
2 | * mcfserial.c -- serial driver for ColdFire internal UARTS. | |
3 | * | |
4 | * Copyright (c) 1999 Greg Ungerer <gerg@snapgear.com> | |
5 | * Copyright (c) 2000-2001 Lineo, Inc. <www.lineo.com> | |
6 | * Copyright (c) 2002 SnapGear Inc., <www.snapgear.com> | |
7 | * | |
8 | * Based on code from 68332serial.c which was: | |
9 | * | |
10 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) | |
11 | * Copyright (C) 1998 TSHG | |
12 | * Copyright (c) 1999 Rt-Control Inc. <jeff@uclinux.org> | |
13 | */ | |
14 | #ifndef _MCF_SERIAL_H | |
15 | #define _MCF_SERIAL_H | |
16 | ||
1da177e4 LT |
17 | #include <linux/serial.h> |
18 | ||
19 | #ifdef __KERNEL__ | |
20 | ||
21 | /* | |
22 | * Define a local serial stats structure. | |
23 | */ | |
24 | ||
25 | struct mcf_stats { | |
26 | unsigned int rx; | |
27 | unsigned int tx; | |
28 | unsigned int rxbreak; | |
29 | unsigned int rxframing; | |
30 | unsigned int rxparity; | |
31 | unsigned int rxoverrun; | |
32 | }; | |
33 | ||
34 | ||
35 | /* | |
36 | * This is our internal structure for each serial port's state. | |
37 | * Each serial port has one of these structures associated with it. | |
38 | */ | |
39 | ||
40 | struct mcf_serial { | |
41 | int magic; | |
42 | volatile unsigned char *addr; /* UART memory address */ | |
43 | int irq; | |
44 | int flags; /* defined in tty.h */ | |
45 | int type; /* UART type */ | |
46 | struct tty_struct *tty; | |
47 | unsigned char imr; /* Software imr register */ | |
48 | unsigned int baud; | |
49 | int sigs; | |
50 | int custom_divisor; | |
51 | int x_char; /* xon/xoff character */ | |
52 | int baud_base; | |
53 | int close_delay; | |
54 | unsigned short closing_wait; | |
55 | unsigned short closing_wait2; | |
56 | unsigned long event; | |
57 | int line; | |
58 | int count; /* # of fd on device */ | |
59 | int blocked_open; /* # of blocked opens */ | |
60 | unsigned char *xmit_buf; | |
61 | int xmit_head; | |
62 | int xmit_tail; | |
63 | int xmit_cnt; | |
64 | struct mcf_stats stats; | |
65 | struct work_struct tqueue; | |
66 | struct work_struct tqueue_hangup; | |
67 | wait_queue_head_t open_wait; | |
68 | wait_queue_head_t close_wait; | |
69 | ||
70 | }; | |
71 | ||
72 | #endif /* __KERNEL__ */ | |
73 | ||
74 | #endif /* _MCF_SERIAL_H */ |