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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 | ||
f2999e4e | 15 | #ifdef __KERNEL__ |
81861d78 IM |
16 | #include <linux/mutex.h> |
17 | ||
1da177e4 LT |
18 | struct real_driver { |
19 | void (*disable_tx_interrupts) (void *); | |
20 | void (*enable_tx_interrupts) (void *); | |
21 | void (*disable_rx_interrupts) (void *); | |
22 | void (*enable_rx_interrupts) (void *); | |
23 | int (*get_CD) (void *); | |
24 | void (*shutdown_port) (void*); | |
25 | int (*set_real_termios) (void*); | |
26 | int (*chars_in_buffer) (void*); | |
27 | void (*close) (void*); | |
28 | void (*hungup) (void*); | |
29 | void (*getserial) (void*, struct serial_struct *sp); | |
30 | }; | |
31 | ||
32 | ||
33 | ||
34 | struct gs_port { | |
35 | int magic; | |
36 | unsigned char *xmit_buf; | |
37 | int xmit_head; | |
38 | int xmit_tail; | |
39 | int xmit_cnt; | |
81861d78 | 40 | struct mutex port_write_mutex; |
1da177e4 LT |
41 | int flags; |
42 | wait_queue_head_t open_wait; | |
43 | wait_queue_head_t close_wait; | |
44 | int count; | |
45 | int blocked_open; | |
46 | struct tty_struct *tty; | |
47 | unsigned long event; | |
48 | unsigned short closing_wait; | |
49 | int close_delay; | |
50 | struct real_driver *rd; | |
51 | int wakeup_chars; | |
52 | int baud_base; | |
53 | int baud; | |
54 | int custom_divisor; | |
55 | spinlock_t driver_lock; | |
56 | }; | |
57 | ||
f2999e4e | 58 | #endif /* __KERNEL__ */ |
1da177e4 LT |
59 | |
60 | /* Flags */ | |
61 | /* Warning: serial.h defines some ASYNC_ flags, they say they are "only" | |
62 | used in serial.c, but they are also used in all other serial drivers. | |
63 | Make sure they don't clash with these here... */ | |
64 | #define GS_TX_INTEN 0x00800000 | |
65 | #define GS_RX_INTEN 0x00400000 | |
66 | #define GS_ACTIVE 0x00200000 | |
67 | ||
68 | ||
69 | ||
70 | #define GS_TYPE_NORMAL 1 | |
71 | ||
72 | #define GS_DEBUG_FLUSH 0x00000001 | |
73 | #define GS_DEBUG_BTR 0x00000002 | |
74 | #define GS_DEBUG_TERMIOS 0x00000004 | |
75 | #define GS_DEBUG_STUFF 0x00000008 | |
76 | #define GS_DEBUG_CLOSE 0x00000010 | |
77 | #define GS_DEBUG_FLOW 0x00000020 | |
78 | #define GS_DEBUG_WRITE 0x00000040 | |
79 | ||
f2999e4e | 80 | #ifdef __KERNEL__ |
1da177e4 LT |
81 | void gs_put_char(struct tty_struct *tty, unsigned char ch); |
82 | int gs_write(struct tty_struct *tty, | |
83 | const unsigned char *buf, int count); | |
84 | int gs_write_room(struct tty_struct *tty); | |
85 | int gs_chars_in_buffer(struct tty_struct *tty); | |
86 | void gs_flush_buffer(struct tty_struct *tty); | |
87 | void gs_flush_chars(struct tty_struct *tty); | |
88 | void gs_stop(struct tty_struct *tty); | |
89 | void gs_start(struct tty_struct *tty); | |
90 | void gs_hangup(struct tty_struct *tty); | |
91 | int gs_block_til_ready(void *port, struct file *filp); | |
92 | void gs_close(struct tty_struct *tty, struct file *filp); | |
93 | void gs_set_termios (struct tty_struct * tty, | |
606d099c | 94 | struct ktermios * old_termios); |
1da177e4 LT |
95 | int gs_init_port(struct gs_port *port); |
96 | int gs_setserial(struct gs_port *port, struct serial_struct __user *sp); | |
97 | int gs_getserial(struct gs_port *port, struct serial_struct __user *sp); | |
98 | void gs_got_break(struct gs_port *port); | |
f2999e4e | 99 | #endif /* __KERNEL__ */ |
1da177e4 | 100 | #endif |