24 #define uart_console(port) \  argument
25 	((port)->cons && (port)->cons->index == (port)->line)
27 #define uart_console(port)      ({ (void)port; 0; })  argument
130 	int			(*startup)(struct uart_port *port);
131 	void			(*shutdown)(struct uart_port *port);
132 	void			(*throttle)(struct uart_port *port);
133 	void			(*unthrottle)(struct uart_port *port);
296 	struct tty_port		port;  member
351 void uart_write_wakeup(struct uart_port *port);
356 void uart_update_timeout(struct uart_port *port, unsigned int cflag,
358 unsigned int uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
361 unsigned int uart_get_divisor(struct uart_port *port, unsigned int baud);
364 static inline int uart_poll_timeout(struct uart_port *port)  in uart_poll_timeout()  argument
366 	int timeout = port->timeout;  in uart_poll_timeout()
376 	struct uart_port port;  member
419 static inline bool uart_console_enabled(struct uart_port *port)  in uart_console_enabled()  argument
421 	return uart_console(port) && (port->cons->flags & CON_ENABLED);  in uart_console_enabled()
430 int uart_set_options(struct uart_port *port, struct console *co, int baud,
433 void uart_console_write(struct uart_port *port, const char *s,
442 int uart_add_one_port(struct uart_driver *reg, struct uart_port *port);
443 int uart_remove_one_port(struct uart_driver *reg, struct uart_port *port);
450 int uart_suspend_port(struct uart_driver *reg, struct uart_port *port);
451 int uart_resume_port(struct uart_driver *reg, struct uart_port *port);
462 static inline int uart_tx_stopped(struct uart_port *port)  in uart_tx_stopped()  argument
464 	struct tty_struct *tty = port->state->port.tty;  in uart_tx_stopped()
465 	if ((tty && tty->flow.stopped) || port->hw_stopped)  in uart_tx_stopped()
491 extern void uart_insert_char(struct uart_port *port, unsigned int status,
499 bool uart_try_toggle_sysrq(struct uart_port *port, unsigned int ch);
501 static inline int uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)  in uart_handle_sysrq_char()  argument
503 	if (!port->sysrq)  in uart_handle_sysrq_char()
506 	if (ch && time_before(jiffies, port->sysrq)) {  in uart_handle_sysrq_char()
509 			port->sysrq = 0;  in uart_handle_sysrq_char()
512 		if (uart_try_toggle_sysrq(port, ch))  in uart_handle_sysrq_char()
515 	port->sysrq = 0;  in uart_handle_sysrq_char()
520 static inline int uart_prepare_sysrq_char(struct uart_port *port, unsigned int ch)  in uart_prepare_sysrq_char()  argument
522 	if (!port->sysrq)  in uart_prepare_sysrq_char()
525 	if (ch && time_before(jiffies, port->sysrq)) {  in uart_prepare_sysrq_char()
527 			port->sysrq_ch = ch;  in uart_prepare_sysrq_char()
528 			port->sysrq = 0;  in uart_prepare_sysrq_char()
531 		if (uart_try_toggle_sysrq(port, ch))  in uart_prepare_sysrq_char()
534 	port->sysrq = 0;  in uart_prepare_sysrq_char()
539 static inline void uart_unlock_and_check_sysrq(struct uart_port *port)  in uart_unlock_and_check_sysrq()  argument
543 	if (!port->has_sysrq) {  in uart_unlock_and_check_sysrq()
544 		spin_unlock(&port->lock);  in uart_unlock_and_check_sysrq()
548 	sysrq_ch = port->sysrq_ch;  in uart_unlock_and_check_sysrq()
549 	port->sysrq_ch = 0;  in uart_unlock_and_check_sysrq()
551 	spin_unlock(&port->lock);  in uart_unlock_and_check_sysrq()
557 static inline void uart_unlock_and_check_sysrq_irqrestore(struct uart_port *port,  in uart_unlock_and_check_sysrq_irqrestore()  argument
562 	if (!port->has_sysrq) {  in uart_unlock_and_check_sysrq_irqrestore()
563 		spin_unlock_irqrestore(&port->lock, flags);  in uart_unlock_and_check_sysrq_irqrestore()
567 	sysrq_ch = port->sysrq_ch;  in uart_unlock_and_check_sysrq_irqrestore()
568 	port->sysrq_ch = 0;  in uart_unlock_and_check_sysrq_irqrestore()
570 	spin_unlock_irqrestore(&port->lock, flags);  in uart_unlock_and_check_sysrq_irqrestore()
576 static inline int uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)  in uart_handle_sysrq_char()  argument
580 static inline int uart_prepare_sysrq_char(struct uart_port *port, unsigned int ch)  in uart_prepare_sysrq_char()  argument
584 static inline void uart_unlock_and_check_sysrq(struct uart_port *port)  in uart_unlock_and_check_sysrq()  argument
586 	spin_unlock(&port->lock);  in uart_unlock_and_check_sysrq()
588 static inline void uart_unlock_and_check_sysrq_irqrestore(struct uart_port *port,  in uart_unlock_and_check_sysrq_irqrestore()  argument
591 	spin_unlock_irqrestore(&port->lock, flags);  in uart_unlock_and_check_sysrq_irqrestore()
598 static inline int uart_handle_break(struct uart_port *port)  in uart_handle_break()  argument
600 	struct uart_state *state = port->state;  in uart_handle_break()
602 	if (port->handle_break)  in uart_handle_break()
603 		port->handle_break(port);  in uart_handle_break()
606 	if (port->has_sysrq && uart_console(port)) {  in uart_handle_break()
607 		if (!port->sysrq) {  in uart_handle_break()
608 			port->sysrq = jiffies + SYSRQ_TIMEOUT;  in uart_handle_break()
611 		port->sysrq = 0;  in uart_handle_break()
614 	if (port->flags & UPF_SAK)  in uart_handle_break()
615 		do_SAK(state->port.tty);  in uart_handle_break()
622 #define UART_ENABLE_MS(port,cflag)	((port)->flags & UPF_HARDPPS_CD || \  argument
626 int uart_get_rs485_mode(struct uart_port *port);