24 #define uart_console(port) \  argument
25 	((port)->cons && (port)->cons->index == (port)->line)
27 #define uart_console(port)      ({ (void)port; 0; })  argument
453 	int			(*startup)(struct uart_port *port);
454 	void			(*shutdown)(struct uart_port *port);
455 	void			(*throttle)(struct uart_port *port);
456 	void			(*unthrottle)(struct uart_port *port);
704 	struct tty_port		port;  member
759 void uart_write_wakeup(struct uart_port *port);
832 #define uart_port_tx_limited(port, ch, count, tx_ready, put_char, tx_done) ({ \  argument
834 	__uart_port_tx(port, ch, 0, tx_ready, put_char, tx_done, __count,     \
850 #define uart_port_tx_limited_flags(port, ch, flags, count, tx_ready, put_char, tx_done) ({ \  argument
852 	__uart_port_tx(port, ch, flags, tx_ready, put_char, tx_done, __count,		   \
865 #define uart_port_tx(port, ch, tx_ready, put_char)			\  argument
866 	__uart_port_tx(port, ch, 0, tx_ready, put_char, ({}), true, ({}))
879 #define uart_port_tx_flags(port, ch, flags, tx_ready, put_char)		\  argument
880 	__uart_port_tx(port, ch, flags, tx_ready, put_char, ({}), true, ({}))
884 void uart_update_timeout(struct uart_port *port, unsigned int cflag,
886 unsigned int uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
889 unsigned int uart_get_divisor(struct uart_port *port, unsigned int baud);
894 static inline unsigned long uart_fifo_timeout(struct uart_port *port)  in uart_fifo_timeout()  argument
896 	u64 fifo_timeout = (u64)READ_ONCE(port->frame_time) * port->fifosize;  in uart_fifo_timeout()
905 static inline int uart_poll_timeout(struct uart_port *port)  in uart_poll_timeout()  argument
907 	int timeout = uart_fifo_timeout(port);  in uart_poll_timeout()
917 	struct uart_port port;  member
960 static inline bool uart_console_registered_locked(struct uart_port *port)  in uart_console_registered_locked()  argument
962 	return uart_console(port) && console_is_registered_locked(port->cons);  in uart_console_registered_locked()
965 static inline bool uart_console_registered(struct uart_port *port)  in uart_console_registered()  argument
967 	return uart_console(port) && console_is_registered(port->cons);  in uart_console_registered()
976 int uart_set_options(struct uart_port *port, struct console *co, int baud,
979 void uart_console_write(struct uart_port *port, const char *s,
988 int uart_add_one_port(struct uart_driver *reg, struct uart_port *port);
989 void uart_remove_one_port(struct uart_driver *reg, struct uart_port *port);
990 int uart_read_port_properties(struct uart_port *port);
991 int uart_read_and_validate_port_properties(struct uart_port *port);
998 int uart_suspend_port(struct uart_driver *reg, struct uart_port *port);
999 int uart_resume_port(struct uart_driver *reg, struct uart_port *port);
1010 static inline int uart_tx_stopped(struct uart_port *port)  in uart_tx_stopped()  argument
1012 	struct tty_struct *tty = port->state->port.tty;  in uart_tx_stopped()
1013 	if ((tty && tty->flow.stopped) || port->hw_stopped)  in uart_tx_stopped()
1037 void uart_insert_char(struct uart_port *port, unsigned int status,
1045 bool uart_try_toggle_sysrq(struct uart_port *port, u8 ch);
1047 static inline int uart_handle_sysrq_char(struct uart_port *port, u8 ch)  in uart_handle_sysrq_char()  argument
1049 	if (!port->sysrq)  in uart_handle_sysrq_char()
1052 	if (ch && time_before(jiffies, port->sysrq)) {  in uart_handle_sysrq_char()
1055 			port->sysrq = 0;  in uart_handle_sysrq_char()
1058 		if (uart_try_toggle_sysrq(port, ch))  in uart_handle_sysrq_char()
1061 	port->sysrq = 0;  in uart_handle_sysrq_char()
1066 static inline int uart_prepare_sysrq_char(struct uart_port *port, u8 ch)  in uart_prepare_sysrq_char()  argument
1068 	if (!port->sysrq)  in uart_prepare_sysrq_char()
1071 	if (ch && time_before(jiffies, port->sysrq)) {  in uart_prepare_sysrq_char()
1073 			port->sysrq_ch = ch;  in uart_prepare_sysrq_char()
1074 			port->sysrq = 0;  in uart_prepare_sysrq_char()
1077 		if (uart_try_toggle_sysrq(port, ch))  in uart_prepare_sysrq_char()
1080 	port->sysrq = 0;  in uart_prepare_sysrq_char()
1085 static inline void uart_unlock_and_check_sysrq(struct uart_port *port)  in uart_unlock_and_check_sysrq()  argument
1089 	if (!port->has_sysrq) {  in uart_unlock_and_check_sysrq()
1090 		spin_unlock(&port->lock);  in uart_unlock_and_check_sysrq()
1094 	sysrq_ch = port->sysrq_ch;  in uart_unlock_and_check_sysrq()
1095 	port->sysrq_ch = 0;  in uart_unlock_and_check_sysrq()
1097 	spin_unlock(&port->lock);  in uart_unlock_and_check_sysrq()
1103 static inline void uart_unlock_and_check_sysrq_irqrestore(struct uart_port *port,  in uart_unlock_and_check_sysrq_irqrestore()  argument
1108 	if (!port->has_sysrq) {  in uart_unlock_and_check_sysrq_irqrestore()
1109 		spin_unlock_irqrestore(&port->lock, flags);  in uart_unlock_and_check_sysrq_irqrestore()
1113 	sysrq_ch = port->sysrq_ch;  in uart_unlock_and_check_sysrq_irqrestore()
1114 	port->sysrq_ch = 0;  in uart_unlock_and_check_sysrq_irqrestore()
1116 	spin_unlock_irqrestore(&port->lock, flags);  in uart_unlock_and_check_sysrq_irqrestore()
1122 static inline int uart_handle_sysrq_char(struct uart_port *port, u8 ch)  in uart_handle_sysrq_char()  argument
1126 static inline int uart_prepare_sysrq_char(struct uart_port *port, u8 ch)  in uart_prepare_sysrq_char()  argument
1130 static inline void uart_unlock_and_check_sysrq(struct uart_port *port)  in uart_unlock_and_check_sysrq()  argument
1132 	spin_unlock(&port->lock);  in uart_unlock_and_check_sysrq()
1134 static inline void uart_unlock_and_check_sysrq_irqrestore(struct uart_port *port,  in uart_unlock_and_check_sysrq_irqrestore()  argument
1137 	spin_unlock_irqrestore(&port->lock, flags);  in uart_unlock_and_check_sysrq_irqrestore()
1144 static inline int uart_handle_break(struct uart_port *port)  in uart_handle_break()  argument
1146 	struct uart_state *state = port->state;  in uart_handle_break()
1148 	if (port->handle_break)  in uart_handle_break()
1149 		port->handle_break(port);  in uart_handle_break()
1152 	if (port->has_sysrq && uart_console(port)) {  in uart_handle_break()
1153 		if (!port->sysrq) {  in uart_handle_break()
1154 			port->sysrq = jiffies + SYSRQ_TIMEOUT;  in uart_handle_break()
1157 		port->sysrq = 0;  in uart_handle_break()
1160 	if (port->flags & UPF_SAK)  in uart_handle_break()
1161 		do_SAK(state->port.tty);  in uart_handle_break()
1168 #define UART_ENABLE_MS(port,cflag)	((port)->flags & UPF_HARDPPS_CD || \  argument
1172 int uart_get_rs485_mode(struct uart_port *port);