spinlock_t flow_lock;
/* Termios values are protected by the termios rwsem */
struct ktermios termios, termios_locked;
- struct termiox *termiox; /* May be NULL for unsupported */
char name[64];
struct pid *pgrp; /* Protected by ctrl lock */
/*
}
/* If the cts flow control is enabled, return true. */
-static inline bool tty_port_cts_enabled(struct tty_port *port)
+static inline bool tty_port_cts_enabled(const struct tty_port *port)
{
return test_bit(TTY_PORT_CTS_FLOW, &port->iflags);
}
static inline void tty_port_set_cts_flow(struct tty_port *port, bool val)
{
- if (val)
- set_bit(TTY_PORT_CTS_FLOW, &port->iflags);
- else
- clear_bit(TTY_PORT_CTS_FLOW, &port->iflags);
+ assign_bit(TTY_PORT_CTS_FLOW, &port->iflags, val);
}
-static inline bool tty_port_active(struct tty_port *port)
+static inline bool tty_port_active(const struct tty_port *port)
{
return test_bit(TTY_PORT_ACTIVE, &port->iflags);
}
static inline void tty_port_set_active(struct tty_port *port, bool val)
{
- if (val)
- set_bit(TTY_PORT_ACTIVE, &port->iflags);
- else
- clear_bit(TTY_PORT_ACTIVE, &port->iflags);
+ assign_bit(TTY_PORT_ACTIVE, &port->iflags, val);
}
-static inline bool tty_port_check_carrier(struct tty_port *port)
+static inline bool tty_port_check_carrier(const struct tty_port *port)
{
return test_bit(TTY_PORT_CHECK_CD, &port->iflags);
}
static inline void tty_port_set_check_carrier(struct tty_port *port, bool val)
{
- if (val)
- set_bit(TTY_PORT_CHECK_CD, &port->iflags);
- else
- clear_bit(TTY_PORT_CHECK_CD, &port->iflags);
+ assign_bit(TTY_PORT_CHECK_CD, &port->iflags, val);
}
-static inline bool tty_port_suspended(struct tty_port *port)
+static inline bool tty_port_suspended(const struct tty_port *port)
{
return test_bit(TTY_PORT_SUSPENDED, &port->iflags);
}
static inline void tty_port_set_suspended(struct tty_port *port, bool val)
{
- if (val)
- set_bit(TTY_PORT_SUSPENDED, &port->iflags);
- else
- clear_bit(TTY_PORT_SUSPENDED, &port->iflags);
+ assign_bit(TTY_PORT_SUSPENDED, &port->iflags, val);
}
-static inline bool tty_port_initialized(struct tty_port *port)
+static inline bool tty_port_initialized(const struct tty_port *port)
{
return test_bit(TTY_PORT_INITIALIZED, &port->iflags);
}
static inline void tty_port_set_initialized(struct tty_port *port, bool val)
{
- if (val)
- set_bit(TTY_PORT_INITIALIZED, &port->iflags);
- else
- clear_bit(TTY_PORT_INITIALIZED, &port->iflags);
+ assign_bit(TTY_PORT_INITIALIZED, &port->iflags, val);
}
-static inline bool tty_port_kopened(struct tty_port *port)
+static inline bool tty_port_kopened(const struct tty_port *port)
{
return test_bit(TTY_PORT_KOPENED, &port->iflags);
}
static inline void tty_port_set_kopened(struct tty_port *port, bool val)
{
- if (val)
- set_bit(TTY_PORT_KOPENED, &port->iflags);
- else
- clear_bit(TTY_PORT_KOPENED, &port->iflags);
+ assign_bit(TTY_PORT_KOPENED, &port->iflags, val);
}
extern struct tty_struct *tty_port_tty_get(struct tty_port *port);
extern void tty_ldisc_deinit(struct tty_struct *tty);
extern int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p,
char *f, int count);
+extern void tty_sysctl_init(void);
/* n_tty.c */
extern void n_tty_inherit_ops(struct tty_ldisc_ops *ops);