4 * Copyright (C) 1998 R.E.Wolff@BitWizard.nl
6 * written for the SX serial driver.
7 * Contains the code that should be shared over all the serial drivers.
9 * Version 0.1 -- December, 1998.
12 #ifndef GENERIC_SERIAL_H
13 #define GENERIC_SERIAL_H
16 #include <linux/mutex.h>
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);
36 unsigned char *xmit_buf;
40 struct mutex port_write_mutex;
42 wait_queue_head_t open_wait;
43 wait_queue_head_t close_wait;
46 struct tty_struct *tty;
48 unsigned short closing_wait;
50 struct real_driver *rd;
55 spinlock_t driver_lock;
58 #endif /* __KERNEL__ */
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
70 #define GS_TYPE_NORMAL 1
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
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,
94 struct termios * old_termios);
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);
99 #endif /* __KERNEL__ */