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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * generic_serial.h | |
3 | * | |
4 | * Copyright (C) 1998 R.E.Wolff@BitWizard.nl | |
5 | * | |
6 | * written for the SX serial driver. | |
7 | * Contains the code that should be shared over all the serial drivers. | |
8 | * | |
9 | * Version 0.1 -- December, 1998. | |
10 | */ | |
11 | ||
12 | #ifndef GENERIC_SERIAL_H | |
13 | #define GENERIC_SERIAL_H | |
14 | ||
15 | struct real_driver { | |
16 | void (*disable_tx_interrupts) (void *); | |
17 | void (*enable_tx_interrupts) (void *); | |
18 | void (*disable_rx_interrupts) (void *); | |
19 | void (*enable_rx_interrupts) (void *); | |
20 | int (*get_CD) (void *); | |
21 | void (*shutdown_port) (void*); | |
22 | int (*set_real_termios) (void*); | |
23 | int (*chars_in_buffer) (void*); | |
24 | void (*close) (void*); | |
25 | void (*hungup) (void*); | |
26 | void (*getserial) (void*, struct serial_struct *sp); | |
27 | }; | |
28 | ||
29 | ||
30 | ||
31 | struct gs_port { | |
32 | int magic; | |
33 | unsigned char *xmit_buf; | |
34 | int xmit_head; | |
35 | int xmit_tail; | |
36 | int xmit_cnt; | |
37 | struct semaphore port_write_sem; | |
38 | int flags; | |
39 | wait_queue_head_t open_wait; | |
40 | wait_queue_head_t close_wait; | |
41 | int count; | |
42 | int blocked_open; | |
43 | struct tty_struct *tty; | |
44 | unsigned long event; | |
45 | unsigned short closing_wait; | |
46 | int close_delay; | |
47 | struct real_driver *rd; | |
48 | int wakeup_chars; | |
49 | int baud_base; | |
50 | int baud; | |
51 | int custom_divisor; | |
52 | spinlock_t driver_lock; | |
53 | }; | |
54 | ||
55 | ||
56 | /* Flags */ | |
57 | /* Warning: serial.h defines some ASYNC_ flags, they say they are "only" | |
58 | used in serial.c, but they are also used in all other serial drivers. | |
59 | Make sure they don't clash with these here... */ | |
60 | #define GS_TX_INTEN 0x00800000 | |
61 | #define GS_RX_INTEN 0x00400000 | |
62 | #define GS_ACTIVE 0x00200000 | |
63 | ||
64 | ||
65 | ||
66 | #define GS_TYPE_NORMAL 1 | |
67 | ||
68 | #define GS_DEBUG_FLUSH 0x00000001 | |
69 | #define GS_DEBUG_BTR 0x00000002 | |
70 | #define GS_DEBUG_TERMIOS 0x00000004 | |
71 | #define GS_DEBUG_STUFF 0x00000008 | |
72 | #define GS_DEBUG_CLOSE 0x00000010 | |
73 | #define GS_DEBUG_FLOW 0x00000020 | |
74 | #define GS_DEBUG_WRITE 0x00000040 | |
75 | ||
76 | ||
77 | void gs_put_char(struct tty_struct *tty, unsigned char ch); | |
78 | int gs_write(struct tty_struct *tty, | |
79 | const unsigned char *buf, int count); | |
80 | int gs_write_room(struct tty_struct *tty); | |
81 | int gs_chars_in_buffer(struct tty_struct *tty); | |
82 | void gs_flush_buffer(struct tty_struct *tty); | |
83 | void gs_flush_chars(struct tty_struct *tty); | |
84 | void gs_stop(struct tty_struct *tty); | |
85 | void gs_start(struct tty_struct *tty); | |
86 | void gs_hangup(struct tty_struct *tty); | |
87 | int gs_block_til_ready(void *port, struct file *filp); | |
88 | void gs_close(struct tty_struct *tty, struct file *filp); | |
89 | void gs_set_termios (struct tty_struct * tty, | |
90 | struct termios * old_termios); | |
91 | int gs_init_port(struct gs_port *port); | |
92 | int gs_setserial(struct gs_port *port, struct serial_struct __user *sp); | |
93 | int gs_getserial(struct gs_port *port, struct serial_struct __user *sp); | |
94 | void gs_got_break(struct gs_port *port); | |
95 | ||
96 | #endif |