110 struct uart_port {  struct
114 	unsigned int		(*serial_in)(struct uart_port *, int);  argument
115 	void			(*serial_out)(struct uart_port *, int, int);  argument
116 	void			(*set_termios)(struct uart_port *,  argument
119 	void			(*set_ldisc)(struct uart_port *,  argument
121 	unsigned int		(*get_mctrl)(struct uart_port *);  argument
122 	void			(*set_mctrl)(struct uart_port *, unsigned int);  argument
123 	unsigned int		(*get_divisor)(struct uart_port *,  argument
126 	void			(*set_divisor)(struct uart_port *,  argument
130 	int			(*startup)(struct uart_port *port);  argument
131 	void			(*shutdown)(struct uart_port *port);  argument
132 	void			(*throttle)(struct uart_port *port);  argument
133 	void			(*unthrottle)(struct uart_port *port);  argument
134 	int			(*handle_irq)(struct uart_port *);  argument
135 	void			(*pm)(struct uart_port *, unsigned int state,  argument
137 	void			(*handle_break)(struct uart_port *);  argument
138 	int			(*rs485_config)(struct uart_port *,  argument
140 	int			(*iso7816_config)(struct uart_port *,  argument
142 	unsigned int		irq;			/* irq number */
143 	unsigned long		irqflags;		/* irq flags  */
144 	unsigned int		uartclk;		/* base uart clock */
145 	unsigned int		fifosize;		/* tx fifo size */
146 	unsigned char		x_char;			/* xon/xoff char */
147 	unsigned char		regshift;		/* reg offset shift */
148 	unsigned char		iotype;			/* io access style */
149 	unsigned char		quirks;			/* internal quirks */
163 	unsigned int		read_status_mask;	/* driver specific */
164 	unsigned int		ignore_status_mask;	/* driver specific */
165 	struct uart_state	*state;			/* pointer to parent state */
166 	struct uart_icount	icount;			/* statistics */
168 	struct console		*cons;			/* struct console, if any */
170 	upf_t			flags;
228 	upstat_t		status;
237 	int			hw_stopped;		/* sw-assisted CTS flow state */
238 	unsigned int		mctrl;			/* current modem ctrl settings */
239 	unsigned int		timeout;		/* character-based timeout */
240 	unsigned int		type;			/* port type */
241 	const struct uart_ops	*ops;
242 	unsigned int		custom_divisor;
243 	unsigned int		line;			/* port index */
244 	unsigned int		minor;
245 	resource_size_t		mapbase;		/* for ioremap */
246 	resource_size_t		mapsize;
270 static inline int serial_port_in(struct uart_port *up, int offset)  in serial_port_in()  argument
303 	struct uart_port	*uart_port;  member