forked from luck/tmp_suning_uos_patched
bdc04e3174
This is used by various drivers not just serial and can be extracted as commonality Signed-off-by: Alan Cox <alan@linux.intel.com>
536 lines
19 KiB
C
536 lines
19 KiB
C
#ifndef _LINUX_TTY_H
|
|
#define _LINUX_TTY_H
|
|
|
|
/*
|
|
* 'tty.h' defines some structures used by tty_io.c and some defines.
|
|
*/
|
|
|
|
#ifdef __KERNEL__
|
|
#include <linux/fs.h>
|
|
#include <linux/major.h>
|
|
#include <linux/termios.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/tty_driver.h>
|
|
#include <linux/tty_ldisc.h>
|
|
#include <linux/mutex.h>
|
|
|
|
#include <asm/system.h>
|
|
|
|
|
|
/*
|
|
* (Note: the *_driver.minor_start values 1, 64, 128, 192 are
|
|
* hardcoded at present.)
|
|
*/
|
|
#define NR_UNIX98_PTY_DEFAULT 4096 /* Default maximum for Unix98 ptys */
|
|
#define NR_UNIX98_PTY_MAX (1 << MINORBITS) /* Absolute limit */
|
|
#define NR_LDISCS 20
|
|
|
|
/* line disciplines */
|
|
#define N_TTY 0
|
|
#define N_SLIP 1
|
|
#define N_MOUSE 2
|
|
#define N_PPP 3
|
|
#define N_STRIP 4
|
|
#define N_AX25 5
|
|
#define N_X25 6 /* X.25 async */
|
|
#define N_6PACK 7
|
|
#define N_MASC 8 /* Reserved for Mobitex module <kaz@cafe.net> */
|
|
#define N_R3964 9 /* Reserved for Simatic R3964 module */
|
|
#define N_PROFIBUS_FDL 10 /* Reserved for Profibus */
|
|
#define N_IRDA 11 /* Linux IrDa - http://irda.sourceforge.net/ */
|
|
#define N_SMSBLOCK 12 /* SMS block mode - for talking to GSM data */
|
|
/* cards about SMS messages */
|
|
#define N_HDLC 13 /* synchronous HDLC */
|
|
#define N_SYNC_PPP 14 /* synchronous PPP */
|
|
#define N_HCI 15 /* Bluetooth HCI UART */
|
|
#define N_GIGASET_M101 16 /* Siemens Gigaset M101 serial DECT adapter */
|
|
#define N_SLCAN 17 /* Serial / USB serial CAN Adaptors */
|
|
#define N_PPS 18 /* Pulse per Second */
|
|
|
|
#define N_V253 19 /* Codec control over voice modem */
|
|
|
|
/*
|
|
* This character is the same as _POSIX_VDISABLE: it cannot be used as
|
|
* a c_cc[] character, but indicates that a particular special character
|
|
* isn't in use (eg VINTR has no character etc)
|
|
*/
|
|
#define __DISABLED_CHAR '\0'
|
|
|
|
struct tty_buffer {
|
|
struct tty_buffer *next;
|
|
char *char_buf_ptr;
|
|
unsigned char *flag_buf_ptr;
|
|
int used;
|
|
int size;
|
|
int commit;
|
|
int read;
|
|
/* Data points here */
|
|
unsigned long data[0];
|
|
};
|
|
|
|
struct tty_bufhead {
|
|
struct delayed_work work;
|
|
spinlock_t lock;
|
|
struct tty_buffer *head; /* Queue head */
|
|
struct tty_buffer *tail; /* Active buffer */
|
|
struct tty_buffer *free; /* Free queue head */
|
|
int memory_used; /* Buffer space used excluding
|
|
free queue */
|
|
};
|
|
/*
|
|
* When a break, frame error, or parity error happens, these codes are
|
|
* stuffed into the flags buffer.
|
|
*/
|
|
#define TTY_NORMAL 0
|
|
#define TTY_BREAK 1
|
|
#define TTY_FRAME 2
|
|
#define TTY_PARITY 3
|
|
#define TTY_OVERRUN 4
|
|
|
|
#define INTR_CHAR(tty) ((tty)->termios->c_cc[VINTR])
|
|
#define QUIT_CHAR(tty) ((tty)->termios->c_cc[VQUIT])
|
|
#define ERASE_CHAR(tty) ((tty)->termios->c_cc[VERASE])
|
|
#define KILL_CHAR(tty) ((tty)->termios->c_cc[VKILL])
|
|
#define EOF_CHAR(tty) ((tty)->termios->c_cc[VEOF])
|
|
#define TIME_CHAR(tty) ((tty)->termios->c_cc[VTIME])
|
|
#define MIN_CHAR(tty) ((tty)->termios->c_cc[VMIN])
|
|
#define SWTC_CHAR(tty) ((tty)->termios->c_cc[VSWTC])
|
|
#define START_CHAR(tty) ((tty)->termios->c_cc[VSTART])
|
|
#define STOP_CHAR(tty) ((tty)->termios->c_cc[VSTOP])
|
|
#define SUSP_CHAR(tty) ((tty)->termios->c_cc[VSUSP])
|
|
#define EOL_CHAR(tty) ((tty)->termios->c_cc[VEOL])
|
|
#define REPRINT_CHAR(tty) ((tty)->termios->c_cc[VREPRINT])
|
|
#define DISCARD_CHAR(tty) ((tty)->termios->c_cc[VDISCARD])
|
|
#define WERASE_CHAR(tty) ((tty)->termios->c_cc[VWERASE])
|
|
#define LNEXT_CHAR(tty) ((tty)->termios->c_cc[VLNEXT])
|
|
#define EOL2_CHAR(tty) ((tty)->termios->c_cc[VEOL2])
|
|
|
|
#define _I_FLAG(tty, f) ((tty)->termios->c_iflag & (f))
|
|
#define _O_FLAG(tty, f) ((tty)->termios->c_oflag & (f))
|
|
#define _C_FLAG(tty, f) ((tty)->termios->c_cflag & (f))
|
|
#define _L_FLAG(tty, f) ((tty)->termios->c_lflag & (f))
|
|
|
|
#define I_IGNBRK(tty) _I_FLAG((tty), IGNBRK)
|
|
#define I_BRKINT(tty) _I_FLAG((tty), BRKINT)
|
|
#define I_IGNPAR(tty) _I_FLAG((tty), IGNPAR)
|
|
#define I_PARMRK(tty) _I_FLAG((tty), PARMRK)
|
|
#define I_INPCK(tty) _I_FLAG((tty), INPCK)
|
|
#define I_ISTRIP(tty) _I_FLAG((tty), ISTRIP)
|
|
#define I_INLCR(tty) _I_FLAG((tty), INLCR)
|
|
#define I_IGNCR(tty) _I_FLAG((tty), IGNCR)
|
|
#define I_ICRNL(tty) _I_FLAG((tty), ICRNL)
|
|
#define I_IUCLC(tty) _I_FLAG((tty), IUCLC)
|
|
#define I_IXON(tty) _I_FLAG((tty), IXON)
|
|
#define I_IXANY(tty) _I_FLAG((tty), IXANY)
|
|
#define I_IXOFF(tty) _I_FLAG((tty), IXOFF)
|
|
#define I_IMAXBEL(tty) _I_FLAG((tty), IMAXBEL)
|
|
#define I_IUTF8(tty) _I_FLAG((tty), IUTF8)
|
|
|
|
#define O_OPOST(tty) _O_FLAG((tty), OPOST)
|
|
#define O_OLCUC(tty) _O_FLAG((tty), OLCUC)
|
|
#define O_ONLCR(tty) _O_FLAG((tty), ONLCR)
|
|
#define O_OCRNL(tty) _O_FLAG((tty), OCRNL)
|
|
#define O_ONOCR(tty) _O_FLAG((tty), ONOCR)
|
|
#define O_ONLRET(tty) _O_FLAG((tty), ONLRET)
|
|
#define O_OFILL(tty) _O_FLAG((tty), OFILL)
|
|
#define O_OFDEL(tty) _O_FLAG((tty), OFDEL)
|
|
#define O_NLDLY(tty) _O_FLAG((tty), NLDLY)
|
|
#define O_CRDLY(tty) _O_FLAG((tty), CRDLY)
|
|
#define O_TABDLY(tty) _O_FLAG((tty), TABDLY)
|
|
#define O_BSDLY(tty) _O_FLAG((tty), BSDLY)
|
|
#define O_VTDLY(tty) _O_FLAG((tty), VTDLY)
|
|
#define O_FFDLY(tty) _O_FLAG((tty), FFDLY)
|
|
|
|
#define C_BAUD(tty) _C_FLAG((tty), CBAUD)
|
|
#define C_CSIZE(tty) _C_FLAG((tty), CSIZE)
|
|
#define C_CSTOPB(tty) _C_FLAG((tty), CSTOPB)
|
|
#define C_CREAD(tty) _C_FLAG((tty), CREAD)
|
|
#define C_PARENB(tty) _C_FLAG((tty), PARENB)
|
|
#define C_PARODD(tty) _C_FLAG((tty), PARODD)
|
|
#define C_HUPCL(tty) _C_FLAG((tty), HUPCL)
|
|
#define C_CLOCAL(tty) _C_FLAG((tty), CLOCAL)
|
|
#define C_CIBAUD(tty) _C_FLAG((tty), CIBAUD)
|
|
#define C_CRTSCTS(tty) _C_FLAG((tty), CRTSCTS)
|
|
|
|
#define L_ISIG(tty) _L_FLAG((tty), ISIG)
|
|
#define L_ICANON(tty) _L_FLAG((tty), ICANON)
|
|
#define L_XCASE(tty) _L_FLAG((tty), XCASE)
|
|
#define L_ECHO(tty) _L_FLAG((tty), ECHO)
|
|
#define L_ECHOE(tty) _L_FLAG((tty), ECHOE)
|
|
#define L_ECHOK(tty) _L_FLAG((tty), ECHOK)
|
|
#define L_ECHONL(tty) _L_FLAG((tty), ECHONL)
|
|
#define L_NOFLSH(tty) _L_FLAG((tty), NOFLSH)
|
|
#define L_TOSTOP(tty) _L_FLAG((tty), TOSTOP)
|
|
#define L_ECHOCTL(tty) _L_FLAG((tty), ECHOCTL)
|
|
#define L_ECHOPRT(tty) _L_FLAG((tty), ECHOPRT)
|
|
#define L_ECHOKE(tty) _L_FLAG((tty), ECHOKE)
|
|
#define L_FLUSHO(tty) _L_FLAG((tty), FLUSHO)
|
|
#define L_PENDIN(tty) _L_FLAG((tty), PENDIN)
|
|
#define L_IEXTEN(tty) _L_FLAG((tty), IEXTEN)
|
|
|
|
struct device;
|
|
struct signal_struct;
|
|
|
|
/*
|
|
* Port level information. Each device keeps its own port level information
|
|
* so provide a common structure for those ports wanting to use common support
|
|
* routines.
|
|
*
|
|
* The tty port has a different lifetime to the tty so must be kept apart.
|
|
* In addition be careful as tty -> port mappings are valid for the life
|
|
* of the tty object but in many cases port -> tty mappings are valid only
|
|
* until a hangup so don't use the wrong path.
|
|
*/
|
|
|
|
struct tty_port;
|
|
|
|
struct tty_port_operations {
|
|
/* Return 1 if the carrier is raised */
|
|
int (*carrier_raised)(struct tty_port *port);
|
|
/* Control the DTR line */
|
|
void (*dtr_rts)(struct tty_port *port, int raise);
|
|
/* Called when the last close completes or a hangup finishes
|
|
IFF the port was initialized. Do not use to free resources */
|
|
void (*shutdown)(struct tty_port *port);
|
|
void (*drop)(struct tty_port *port);
|
|
};
|
|
|
|
struct tty_port {
|
|
struct tty_struct *tty; /* Back pointer */
|
|
const struct tty_port_operations *ops; /* Port operations */
|
|
spinlock_t lock; /* Lock protecting tty field */
|
|
int blocked_open; /* Waiting to open */
|
|
int count; /* Usage count */
|
|
wait_queue_head_t open_wait; /* Open waiters */
|
|
wait_queue_head_t close_wait; /* Close waiters */
|
|
wait_queue_head_t delta_msr_wait; /* Modem status change */
|
|
unsigned long flags; /* TTY flags ASY_*/
|
|
struct mutex mutex; /* Locking */
|
|
unsigned char *xmit_buf; /* Optional buffer */
|
|
unsigned int close_delay; /* Close port delay */
|
|
unsigned int closing_wait; /* Delay for output */
|
|
int drain_delay; /* Set to zero if no pure time
|
|
based drain is needed else
|
|
set to size of fifo */
|
|
};
|
|
|
|
/*
|
|
* Where all of the state associated with a tty is kept while the tty
|
|
* is open. Since the termios state should be kept even if the tty
|
|
* has been closed --- for things like the baud rate, etc --- it is
|
|
* not stored here, but rather a pointer to the real state is stored
|
|
* here. Possible the winsize structure should have the same
|
|
* treatment, but (1) the default 80x24 is usually right and (2) it's
|
|
* most often used by a windowing system, which will set the correct
|
|
* size each time the window is created or resized anyway.
|
|
* - TYT, 9/14/92
|
|
*/
|
|
|
|
struct tty_operations;
|
|
|
|
struct tty_struct {
|
|
int magic;
|
|
struct kref kref;
|
|
struct tty_driver *driver;
|
|
const struct tty_operations *ops;
|
|
int index;
|
|
|
|
/* Protects ldisc changes: Lock tty not pty */
|
|
struct mutex ldisc_mutex;
|
|
struct tty_ldisc *ldisc;
|
|
|
|
struct mutex termios_mutex;
|
|
spinlock_t ctrl_lock;
|
|
/* Termios values are protected by the termios mutex */
|
|
struct ktermios *termios, *termios_locked;
|
|
struct termiox *termiox; /* May be NULL for unsupported */
|
|
char name[64];
|
|
struct pid *pgrp; /* Protected by ctrl lock */
|
|
struct pid *session;
|
|
unsigned long flags;
|
|
int count;
|
|
struct winsize winsize; /* termios mutex */
|
|
unsigned char stopped:1, hw_stopped:1, flow_stopped:1, packet:1;
|
|
unsigned char low_latency:1, warned:1;
|
|
unsigned char ctrl_status; /* ctrl_lock */
|
|
unsigned int receive_room; /* Bytes free for queue */
|
|
|
|
struct tty_struct *link;
|
|
struct fasync_struct *fasync;
|
|
struct tty_bufhead buf; /* Locked internally */
|
|
int alt_speed; /* For magic substitution of 38400 bps */
|
|
wait_queue_head_t write_wait;
|
|
wait_queue_head_t read_wait;
|
|
struct work_struct hangup_work;
|
|
void *disc_data;
|
|
void *driver_data;
|
|
struct list_head tty_files;
|
|
|
|
#define N_TTY_BUF_SIZE 4096
|
|
|
|
/*
|
|
* The following is data for the N_TTY line discipline. For
|
|
* historical reasons, this is included in the tty structure.
|
|
* Mostly locked by the BKL.
|
|
*/
|
|
unsigned int column;
|
|
unsigned char lnext:1, erasing:1, raw:1, real_raw:1, icanon:1;
|
|
unsigned char closing:1;
|
|
unsigned char echo_overrun:1;
|
|
unsigned short minimum_to_wake;
|
|
unsigned long overrun_time;
|
|
int num_overrun;
|
|
unsigned long process_char_map[256/(8*sizeof(unsigned long))];
|
|
char *read_buf;
|
|
int read_head;
|
|
int read_tail;
|
|
int read_cnt;
|
|
unsigned long read_flags[N_TTY_BUF_SIZE/(8*sizeof(unsigned long))];
|
|
unsigned char *echo_buf;
|
|
unsigned int echo_pos;
|
|
unsigned int echo_cnt;
|
|
int canon_data;
|
|
unsigned long canon_head;
|
|
unsigned int canon_column;
|
|
struct mutex atomic_read_lock;
|
|
struct mutex atomic_write_lock;
|
|
struct mutex output_lock;
|
|
struct mutex echo_lock;
|
|
unsigned char *write_buf;
|
|
int write_cnt;
|
|
spinlock_t read_lock;
|
|
/* If the tty has a pending do_SAK, queue it here - akpm */
|
|
struct work_struct SAK_work;
|
|
struct tty_port *port;
|
|
};
|
|
|
|
/* tty magic number */
|
|
#define TTY_MAGIC 0x5401
|
|
|
|
/*
|
|
* These bits are used in the flags field of the tty structure.
|
|
*
|
|
* So that interrupts won't be able to mess up the queues,
|
|
* copy_to_cooked must be atomic with respect to itself, as must
|
|
* tty->write. Thus, you must use the inline functions set_bit() and
|
|
* clear_bit() to make things atomic.
|
|
*/
|
|
#define TTY_THROTTLED 0 /* Call unthrottle() at threshold min */
|
|
#define TTY_IO_ERROR 1 /* Cause an I/O error (may be no ldisc too) */
|
|
#define TTY_OTHER_CLOSED 2 /* Other side (if any) has closed */
|
|
#define TTY_EXCLUSIVE 3 /* Exclusive open mode */
|
|
#define TTY_DEBUG 4 /* Debugging */
|
|
#define TTY_DO_WRITE_WAKEUP 5 /* Call write_wakeup after queuing new */
|
|
#define TTY_PUSH 6 /* n_tty private */
|
|
#define TTY_CLOSING 7 /* ->close() in progress */
|
|
#define TTY_LDISC 9 /* Line discipline attached */
|
|
#define TTY_LDISC_CHANGING 10 /* Line discipline changing */
|
|
#define TTY_LDISC_OPEN 11 /* Line discipline is open */
|
|
#define TTY_HW_COOK_OUT 14 /* Hardware can do output cooking */
|
|
#define TTY_HW_COOK_IN 15 /* Hardware can do input cooking */
|
|
#define TTY_PTY_LOCK 16 /* pty private */
|
|
#define TTY_NO_WRITE_SPLIT 17 /* Preserve write boundaries to driver */
|
|
#define TTY_HUPPED 18 /* Post driver->hangup() */
|
|
#define TTY_FLUSHING 19 /* Flushing to ldisc in progress */
|
|
#define TTY_FLUSHPENDING 20 /* Queued buffer flush pending */
|
|
|
|
#define TTY_WRITE_FLUSH(tty) tty_write_flush((tty))
|
|
|
|
extern void tty_write_flush(struct tty_struct *);
|
|
|
|
extern struct ktermios tty_std_termios;
|
|
|
|
extern int kmsg_redirect;
|
|
|
|
extern void console_init(void);
|
|
extern int vcs_init(void);
|
|
|
|
extern struct class *tty_class;
|
|
|
|
/**
|
|
* tty_kref_get - get a tty reference
|
|
* @tty: tty device
|
|
*
|
|
* Return a new reference to a tty object. The caller must hold
|
|
* sufficient locks/counts to ensure that their existing reference cannot
|
|
* go away
|
|
*/
|
|
|
|
static inline struct tty_struct *tty_kref_get(struct tty_struct *tty)
|
|
{
|
|
if (tty)
|
|
kref_get(&tty->kref);
|
|
return tty;
|
|
}
|
|
extern void tty_kref_put(struct tty_struct *tty);
|
|
|
|
extern int tty_paranoia_check(struct tty_struct *tty, struct inode *inode,
|
|
const char *routine);
|
|
extern char *tty_name(struct tty_struct *tty, char *buf);
|
|
extern void tty_wait_until_sent(struct tty_struct *tty, long timeout);
|
|
extern int tty_check_change(struct tty_struct *tty);
|
|
extern void stop_tty(struct tty_struct *tty);
|
|
extern void start_tty(struct tty_struct *tty);
|
|
extern int tty_register_driver(struct tty_driver *driver);
|
|
extern int tty_unregister_driver(struct tty_driver *driver);
|
|
extern struct device *tty_register_device(struct tty_driver *driver,
|
|
unsigned index, struct device *dev);
|
|
extern void tty_unregister_device(struct tty_driver *driver, unsigned index);
|
|
extern int tty_read_raw_data(struct tty_struct *tty, unsigned char *bufp,
|
|
int buflen);
|
|
extern void tty_write_message(struct tty_struct *tty, char *msg);
|
|
extern int tty_put_char(struct tty_struct *tty, unsigned char c);
|
|
extern int tty_chars_in_buffer(struct tty_struct *tty);
|
|
extern int tty_write_room(struct tty_struct *tty);
|
|
extern void tty_driver_flush_buffer(struct tty_struct *tty);
|
|
extern void tty_throttle(struct tty_struct *tty);
|
|
extern void tty_unthrottle(struct tty_struct *tty);
|
|
extern int tty_do_resize(struct tty_struct *tty, struct winsize *ws);
|
|
extern void tty_shutdown(struct tty_struct *tty);
|
|
extern void tty_free_termios(struct tty_struct *tty);
|
|
extern int is_current_pgrp_orphaned(void);
|
|
extern struct pid *tty_get_pgrp(struct tty_struct *tty);
|
|
extern int is_ignored(int sig);
|
|
extern int tty_signal(int sig, struct tty_struct *tty);
|
|
extern void tty_hangup(struct tty_struct *tty);
|
|
extern void tty_vhangup(struct tty_struct *tty);
|
|
extern void tty_vhangup_self(void);
|
|
extern void tty_unhangup(struct file *filp);
|
|
extern int tty_hung_up_p(struct file *filp);
|
|
extern void do_SAK(struct tty_struct *tty);
|
|
extern void __do_SAK(struct tty_struct *tty);
|
|
extern void disassociate_ctty(int priv);
|
|
extern void no_tty(void);
|
|
extern void tty_flip_buffer_push(struct tty_struct *tty);
|
|
extern void tty_flush_to_ldisc(struct tty_struct *tty);
|
|
extern void tty_buffer_free_all(struct tty_struct *tty);
|
|
extern void tty_buffer_flush(struct tty_struct *tty);
|
|
extern void tty_buffer_init(struct tty_struct *tty);
|
|
extern speed_t tty_get_baud_rate(struct tty_struct *tty);
|
|
extern speed_t tty_termios_baud_rate(struct ktermios *termios);
|
|
extern speed_t tty_termios_input_baud_rate(struct ktermios *termios);
|
|
extern void tty_termios_encode_baud_rate(struct ktermios *termios,
|
|
speed_t ibaud, speed_t obaud);
|
|
extern void tty_encode_baud_rate(struct tty_struct *tty,
|
|
speed_t ibaud, speed_t obaud);
|
|
extern void tty_termios_copy_hw(struct ktermios *new, struct ktermios *old);
|
|
extern int tty_termios_hw_change(struct ktermios *a, struct ktermios *b);
|
|
|
|
extern struct tty_ldisc *tty_ldisc_ref(struct tty_struct *);
|
|
extern void tty_ldisc_deref(struct tty_ldisc *);
|
|
extern struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *);
|
|
extern void tty_ldisc_hangup(struct tty_struct *tty);
|
|
extern const struct file_operations tty_ldiscs_proc_fops;
|
|
|
|
extern void tty_wakeup(struct tty_struct *tty);
|
|
extern void tty_ldisc_flush(struct tty_struct *tty);
|
|
|
|
extern long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
|
|
extern int tty_mode_ioctl(struct tty_struct *tty, struct file *file,
|
|
unsigned int cmd, unsigned long arg);
|
|
extern int tty_perform_flush(struct tty_struct *tty, unsigned long arg);
|
|
extern dev_t tty_devnum(struct tty_struct *tty);
|
|
extern void proc_clear_tty(struct task_struct *p);
|
|
extern struct tty_struct *get_current_tty(void);
|
|
extern void tty_default_fops(struct file_operations *fops);
|
|
extern struct tty_struct *alloc_tty_struct(void);
|
|
extern void free_tty_struct(struct tty_struct *tty);
|
|
extern void initialize_tty_struct(struct tty_struct *tty,
|
|
struct tty_driver *driver, int idx);
|
|
extern struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx,
|
|
int first_ok);
|
|
extern void tty_release_dev(struct file *filp);
|
|
extern int tty_init_termios(struct tty_struct *tty);
|
|
|
|
extern struct tty_struct *tty_pair_get_tty(struct tty_struct *tty);
|
|
extern struct tty_struct *tty_pair_get_pty(struct tty_struct *tty);
|
|
|
|
extern struct mutex tty_mutex;
|
|
|
|
extern void tty_write_unlock(struct tty_struct *tty);
|
|
extern int tty_write_lock(struct tty_struct *tty, int ndelay);
|
|
#define tty_is_writelocked(tty) (mutex_is_locked(&tty->atomic_write_lock))
|
|
|
|
extern void tty_port_init(struct tty_port *port);
|
|
extern int tty_port_alloc_xmit_buf(struct tty_port *port);
|
|
extern void tty_port_free_xmit_buf(struct tty_port *port);
|
|
extern struct tty_struct *tty_port_tty_get(struct tty_port *port);
|
|
extern void tty_port_tty_set(struct tty_port *port, struct tty_struct *tty);
|
|
extern int tty_port_carrier_raised(struct tty_port *port);
|
|
extern void tty_port_raise_dtr_rts(struct tty_port *port);
|
|
extern void tty_port_lower_dtr_rts(struct tty_port *port);
|
|
extern void tty_port_hangup(struct tty_port *port);
|
|
extern int tty_port_block_til_ready(struct tty_port *port,
|
|
struct tty_struct *tty, struct file *filp);
|
|
extern int tty_port_close_start(struct tty_port *port,
|
|
struct tty_struct *tty, struct file *filp);
|
|
extern void tty_port_close_end(struct tty_port *port, struct tty_struct *tty);
|
|
extern void tty_port_close(struct tty_port *port,
|
|
struct tty_struct *tty, struct file *filp);
|
|
extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
|
|
extern int tty_unregister_ldisc(int disc);
|
|
extern int tty_set_ldisc(struct tty_struct *tty, int ldisc);
|
|
extern int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty);
|
|
extern void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty);
|
|
extern void tty_ldisc_init(struct tty_struct *tty);
|
|
extern void tty_ldisc_begin(void);
|
|
/* This last one is just for the tty layer internals and shouldn't be used elsewhere */
|
|
extern void tty_ldisc_enable(struct tty_struct *tty);
|
|
|
|
|
|
/* n_tty.c */
|
|
extern struct tty_ldisc_ops tty_ldisc_N_TTY;
|
|
|
|
/* tty_audit.c */
|
|
#ifdef CONFIG_AUDIT
|
|
extern void tty_audit_add_data(struct tty_struct *tty, unsigned char *data,
|
|
size_t size);
|
|
extern void tty_audit_exit(void);
|
|
extern void tty_audit_fork(struct signal_struct *sig);
|
|
extern void tty_audit_tiocsti(struct tty_struct *tty, char ch);
|
|
extern void tty_audit_push(struct tty_struct *tty);
|
|
extern void tty_audit_push_task(struct task_struct *tsk,
|
|
uid_t loginuid, u32 sessionid);
|
|
#else
|
|
static inline void tty_audit_add_data(struct tty_struct *tty,
|
|
unsigned char *data, size_t size)
|
|
{
|
|
}
|
|
static inline void tty_audit_tiocsti(struct tty_struct *tty, char ch)
|
|
{
|
|
}
|
|
static inline void tty_audit_exit(void)
|
|
{
|
|
}
|
|
static inline void tty_audit_fork(struct signal_struct *sig)
|
|
{
|
|
}
|
|
static inline void tty_audit_push(struct tty_struct *tty)
|
|
{
|
|
}
|
|
static inline void tty_audit_push_task(struct task_struct *tsk,
|
|
uid_t loginuid, u32 sessionid)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/* tty_ioctl.c */
|
|
extern int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
|
|
unsigned int cmd, unsigned long arg);
|
|
|
|
/* serial.c */
|
|
|
|
extern void serial_console_init(void);
|
|
|
|
/* pcxx.c */
|
|
|
|
extern int pcxe_open(struct tty_struct *tty, struct file *filp);
|
|
|
|
/* vt.c */
|
|
|
|
extern int vt_ioctl(struct tty_struct *tty, struct file *file,
|
|
unsigned int cmd, unsigned long arg);
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif
|