Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

[safe/jmp/linux-2.6] / include / linux / tty.h

diff --git a/include/linux/tty.h b/include/linux/tty.h
index b6e6c26..fc39db9 100644 (file)
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -180,8 +180,18 @@ struct signal_struct;
  * 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);
+       void (*raise_dtr_rts)(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 */
@@ -219,6 +229,7 @@ struct tty_struct {
        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;
@@ -251,6 +262,7 @@ struct tty_struct {
        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;
@@ -260,11 +272,16 @@ struct tty_struct {
        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;
@@ -293,6 +310,7 @@ struct tty_struct {
 #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_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 */
@@ -312,6 +330,8 @@ 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
@@ -321,7 +341,7 @@ extern int vcs_init(void);
  *     go away
  */
 
-extern inline struct tty_struct *tty_kref_get(struct tty_struct *tty)
+static inline struct tty_struct *tty_kref_get(struct tty_struct *tty)
 {
        if (tty)
                kref_get(&tty->kref);
@@ -350,15 +370,16 @@ 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 tty_struct *real_tty,
-                                               struct winsize *ws);
-
+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);
@@ -394,6 +415,15 @@ 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 mutex tty_mutex;
 
@@ -404,6 +434,16 @@ extern int tty_write_lock(struct tty_struct *tty, int ndelay);
 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_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 int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
 extern int tty_unregister_ldisc(int disc);
@@ -425,6 +465,7 @@ 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);
@@ -433,6 +474,9 @@ 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)
 {
 }
@@ -449,7 +493,7 @@ static inline void tty_audit_push_task(struct task_struct *tsk,
 #endif
 
 /* tty_ioctl.c */
-extern int n_tty_ioctl(struct tty_struct *tty, struct file *file,
+extern int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
                       unsigned int cmd, unsigned long arg);
 
 /* serial.c */