Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 672 deletions

diff --git a/ANDROID_3.4.5/include/linux/tty.h b/ANDROID_3.4.5/include/linux/tty.h
deleted file mode 100644
index 9f47ab54..00000000
--- a/ANDROID_3.4.5/include/linux/tty.h
+++ /dev/null
@@ -1,672 +0,0 @@
-#ifndef _LINUX_TTY_H
-#define _LINUX_TTY_H
-
-/*
- * 'tty.h' defines some structures used by tty_io.c and some defines.
- */
-
-#define NR_LDISCS		30
-
-/* 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 */
-#define N_CAIF		20      /* CAIF protocol for talking to modems */
-#define N_GSM0710	21	/* GSM 0710 Mux */
-#define N_TI_WL		22	/* for TI's WL BT, FM, GPS combo chips */
-#define N_TRACESINK	23	/* Trace data routing for MIPI P1149.7 */
-#define N_TRACEROUTER	24	/* Trace data routing for MIPI P1149.7 */
-
-#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>
-
-
-
-/*
- * (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_RESERVE	1024	  /* Default reserve for main devpts */
-#define NR_UNIX98_PTY_MAX	(1 << MINORBITS) /* Absolute limit */
-
-/*
- * 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];
-};
-
-/*
- * We default to dicing tty buffer allocations to this many characters
- * in order to avoid multiple page allocations. We know the size of
- * tty_buffer itself but it must also be taken into account that the
- * the buffer is 256 byte aligned. See tty_buffer_find for the allocation
- * logic this must match
- */
-
-#define TTY_BUFFER_PAGE	(((PAGE_SIZE - sizeof(struct tty_buffer)) / 2) & ~0xFF)
-
-
-struct tty_bufhead {
-	struct work_struct 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)
-#define L_EXTPROC(tty)	_L_FLAG((tty), EXTPROC)
-
-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. Called
-	   under the port mutex to serialize against activate/shutdowns */
-	void (*shutdown)(struct tty_port *port);
-	void (*drop)(struct tty_port *port);
-	/* Called under the port mutex from tty_port_open, serialized using
-	   the port mutex */
-        /* FIXME: long term getting the tty argument *out* of this would be
-           good for consoles */
-	int (*activate)(struct tty_port *port, struct tty_struct *tty);
-	/* Called on the final put of a port */
-	void (*destruct)(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_*/
-	unsigned char		console:1;	/* port is a console */
-	struct mutex		mutex;		/* Locking */
-	struct mutex		buf_mutex;	/* Buffer alloc lock */
-	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 */
-	struct kref		kref;		/* Ref counter */
-};
-
-/*
- * 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 device *dev;
-	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;
-};
-
-/* Each of a tty's open files has private_data pointing to tty_file_private */
-struct tty_file_private {
-	struct tty_struct *tty;
-	struct file *file;
-	struct list_head list;
-};
-
-/* 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_HUPPING 		21	/* ->hangup() in progress */
-
-#define TTY_WRITE_FLUSH(tty) tty_write_flush((tty))
-
-extern void tty_write_flush(struct tty_struct *);
-
-extern struct ktermios tty_std_termios;
-
-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_driver_remove_tty(struct tty_driver *driver,
-				  struct tty_struct *tty);
-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_locked(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 int tty_set_termios(struct tty_struct *tty, struct ktermios *kt);
-
-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 int tty_alloc_file(struct file *file);
-extern void tty_add_file(struct tty_struct *tty, struct file *file);
-extern void tty_free_file(struct file *file);
-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 void deinitialize_tty_struct(struct tty_struct *tty);
-extern struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx);
-extern int tty_release(struct inode *inode, struct file *filp);
-extern int tty_init_termios(struct tty_struct *tty);
-extern int tty_standard_install(struct tty_driver *driver,
-		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 spinlock_t tty_files_lock;
-
-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 void tty_port_put(struct tty_port *port);
-
-static inline struct tty_port *tty_port_get(struct tty_port *port)
-{
-	if (port)
-		kref_get(&port->kref);
-	return 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_port_open(struct tty_port *port,
-				struct tty_struct *tty, struct file *filp);
-static inline int tty_port_users(struct tty_port *port)
-{
-	return port->count + port->blocked_open;
-}
-
-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_deinit(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;
-extern void n_tty_inherit_ops(struct tty_ldisc_ops *ops);
-
-/* 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 int 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 int tty_audit_push_task(struct task_struct *tsk,
-				      uid_t loginuid, u32 sessionid)
-{
-	return 0;
-}
-#endif
-
-/* tty_io.c */
-extern int __init tty_init(void);
-
-/* tty_ioctl.c */
-extern int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
-		       unsigned int cmd, unsigned long arg);
-extern long n_tty_compat_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,
-		    unsigned int cmd, unsigned long arg);
-
-extern long vt_compat_ioctl(struct tty_struct *tty,
-		     unsigned int cmd, unsigned long arg);
-
-/* tty_mutex.c */
-/* functions for preparation of BKL removal */
-extern void __lockfunc tty_lock(void) __acquires(tty_lock);
-extern void __lockfunc tty_unlock(void) __releases(tty_lock);
-
-/*
- * this shall be called only from where BTM is held (like close)
- *
- * We need this to ensure nobody waits for us to finish while we are waiting.
- * Without this we were encountering system stalls.
- *
- * This should be indeed removed with BTM removal later.
- *
- * Locking: BTM required. Nobody is allowed to hold port->mutex.
- */
-static inline void tty_wait_until_sent_from_close(struct tty_struct *tty,
-		long timeout)
-{
-	tty_unlock(); /* tty->ops->close holds the BTM, drop it while waiting */
-	tty_wait_until_sent(tty, timeout);
-	tty_lock();
-}
-
-/*
- * wait_event_interruptible_tty -- wait for a condition with the tty lock held
- *
- * The condition we are waiting for might take a long time to
- * become true, or might depend on another thread taking the
- * BTM. In either case, we need to drop the BTM to guarantee
- * forward progress. This is a leftover from the conversion
- * from the BKL and should eventually get removed as the BTM
- * falls out of use.
- *
- * Do not use in new code.
- */
-#define wait_event_interruptible_tty(wq, condition)			\
-({									\
-	int __ret = 0;							\
-	if (!(condition)) {						\
-		__wait_event_interruptible_tty(wq, condition, __ret);	\
-	}								\
-	__ret;								\
-})
-
-#define __wait_event_interruptible_tty(wq, condition, ret)		\
-do {									\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE);	\
-		if (condition)						\
-			break;						\
-		if (!signal_pending(current)) {				\
-			tty_unlock();					\
-			schedule();					\
-			tty_lock();					\
-			continue;					\
-		}							\
-		ret = -ERESTARTSYS;					\
-		break;							\
-	}								\
-	finish_wait(&wq, &__wait);					\
-} while (0)
-
-
-#endif /* __KERNEL__ */
-#endif