52 	struct uart_port		port;		/* Generic UART port	*/  member
114 	struct tty_port *port = NULL;  in receive_chars()  local
121 	if (up->port.state != NULL)		/* Unopened serial console */  in receive_chars()
122 		port = &up->port.state->port;  in receive_chars()
139 		return port;  in receive_chars()
157 	    (up->port.line == up->port.cons->index))  in receive_chars()
164 			up->port.icount.brk++;  in receive_chars()
165 			uart_handle_break(&up->port);  in receive_chars()
173 		up->port.icount.rx++;  in receive_chars()
185 				up->port.icount.brk++;  in receive_chars()
192 				if (uart_handle_break(&up->port))  in receive_chars()
195 				up->port.icount.parity++;  in receive_chars()
197 				up->port.icount.frame++;  in receive_chars()
199 				up->port.icount.overrun++;  in receive_chars()
204 			stat->sreg.isr0 &= (up->port.read_status_mask & 0xff);  in receive_chars()
205 			stat->sreg.isr1 &= ((up->port.read_status_mask >> 8) & 0xff);  in receive_chars()
215 		if (uart_handle_sysrq_char(&up->port, ch) || !port)  in receive_chars()
218 		if ((stat->sreg.isr0 & (up->port.ignore_status_mask & 0xff)) == 0 &&  in receive_chars()
219 		    (stat->sreg.isr1 & ((up->port.ignore_status_mask >> 8) & 0xff)) == 0)  in receive_chars()
220 			tty_insert_flip_char(port, ch, flag);  in receive_chars()
222 			tty_insert_flip_char(port, 0, TTY_OVERRUN);  in receive_chars()
228 	return port;  in receive_chars()
237 	struct circ_buf *xmit = &up->port.state->xmit;  in transmit_chars()
257 	if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {  in transmit_chars()
269 	for (i = 0; i < up->port.fifosize; i++) {  in transmit_chars()
273 		up->port.icount.tx++;  in transmit_chars()
283 		uart_write_wakeup(&up->port);  in transmit_chars()
286 		sunsab_stop_tx(&up->port);  in transmit_chars()
293 		uart_handle_dcd_change(&up->port,  in check_status()
297 		uart_handle_cts_change(&up->port,  in check_status()
302 		up->port.icount.dsr++;  in check_status()
305 	wake_up_interruptible(&up->port.state->port.delta_msr_wait);  in check_status()
311 	struct tty_port *port = NULL;  in sunsab_interrupt()  local
316 	spin_lock_irqsave(&up->port.lock, flags);  in sunsab_interrupt()
329 			port = receive_chars(up, &status);  in sunsab_interrupt()
337 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsab_interrupt()
339 	if (port)  in sunsab_interrupt()
340 		tty_flip_buffer_push(port);  in sunsab_interrupt()
346 static unsigned int sunsab_tx_empty(struct uart_port *port)  in sunsab_tx_empty()  argument
349 		container_of(port, struct uart_sunsab_port, port);  in sunsab_tx_empty()
362 static void sunsab_set_mctrl(struct uart_port *port, unsigned int mctrl)  in sunsab_set_mctrl()  argument
365 		container_of(port, struct uart_sunsab_port, port);  in sunsab_set_mctrl()
386 static unsigned int sunsab_get_mctrl(struct uart_port *port)  in sunsab_get_mctrl()  argument
389 		container_of(port, struct uart_sunsab_port, port);  in sunsab_get_mctrl()
408 static void sunsab_stop_tx(struct uart_port *port)  in sunsab_stop_tx()  argument
411 		container_of(port, struct uart_sunsab_port, port);  in sunsab_stop_tx()
437 static void sunsab_start_tx(struct uart_port *port)  in sunsab_start_tx()  argument
440 		container_of(port, struct uart_sunsab_port, port);  in sunsab_start_tx()
441 	struct circ_buf *xmit = &up->port.state->xmit;  in sunsab_start_tx()
444 	if (uart_circ_empty(xmit) || uart_tx_stopped(port))  in sunsab_start_tx()
456 	for (i = 0; i < up->port.fifosize; i++) {  in sunsab_start_tx()
460 		up->port.icount.tx++;  in sunsab_start_tx()
471 static void sunsab_send_xchar(struct uart_port *port, char ch)  in sunsab_send_xchar()  argument
474 		container_of(port, struct uart_sunsab_port, port);  in sunsab_send_xchar()
480 	spin_lock_irqsave(&up->port.lock, flags);  in sunsab_send_xchar()
485 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsab_send_xchar()
489 static void sunsab_stop_rx(struct uart_port *port)  in sunsab_stop_rx()  argument
492 		container_of(port, struct uart_sunsab_port, port);  in sunsab_stop_rx()
499 static void sunsab_break_ctl(struct uart_port *port, int break_state)  in sunsab_break_ctl()  argument
502 		container_of(port, struct uart_sunsab_port, port);  in sunsab_break_ctl()
506 	spin_lock_irqsave(&up->port.lock, flags);  in sunsab_break_ctl()
519 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsab_break_ctl()
523 static int sunsab_startup(struct uart_port *port)  in sunsab_startup()  argument
526 		container_of(port, struct uart_sunsab_port, port);  in sunsab_startup()
529 	int err = request_irq(up->port.irq, sunsab_interrupt,  in sunsab_startup()
534 	spin_lock_irqsave(&up->port.lock, flags);  in sunsab_startup()
589 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsab_startup()
595 static void sunsab_shutdown(struct uart_port *port)  in sunsab_shutdown()  argument
598 		container_of(port, struct uart_sunsab_port, port);  in sunsab_shutdown()
601 	spin_lock_irqsave(&up->port.lock, flags);  in sunsab_shutdown()
635 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsab_shutdown()
636 	free_irq(up->port.irq, up);  in sunsab_shutdown()
732 	up->port.read_status_mask = (SAB82532_ISR0_TCD | SAB82532_ISR0_TIME |  in sunsab_convert_to_sab()
735 	up->port.read_status_mask |= (SAB82532_ISR1_CSC |  in sunsab_convert_to_sab()
739 		up->port.read_status_mask |= (SAB82532_ISR0_PERR |  in sunsab_convert_to_sab()
742 		up->port.read_status_mask |= (SAB82532_ISR1_BRK << 8);  in sunsab_convert_to_sab()
747 	up->port.ignore_status_mask = 0;  in sunsab_convert_to_sab()
749 		up->port.ignore_status_mask |= (SAB82532_ISR0_PERR |  in sunsab_convert_to_sab()
752 		up->port.ignore_status_mask |= (SAB82532_ISR1_BRK << 8);  in sunsab_convert_to_sab()
758 			up->port.ignore_status_mask |= SAB82532_ISR0_RFO;  in sunsab_convert_to_sab()
765 		up->port.ignore_status_mask |= (SAB82532_ISR0_RPF |  in sunsab_convert_to_sab()
768 	uart_update_timeout(&up->port, cflag,  in sunsab_convert_to_sab()
769 			    (up->port.uartclk / (16 * quot)));  in sunsab_convert_to_sab()
781 static void sunsab_set_termios(struct uart_port *port, struct ktermios *termios,  in sunsab_set_termios()  argument
785 		container_of(port, struct uart_sunsab_port, port);  in sunsab_set_termios()
787 	unsigned int baud = uart_get_baud_rate(port, termios, old, 0, 4000000);  in sunsab_set_termios()
788 	unsigned int quot = uart_get_divisor(port, baud);  in sunsab_set_termios()
790 	spin_lock_irqsave(&up->port.lock, flags);  in sunsab_set_termios()
792 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsab_set_termios()
795 static const char *sunsab_type(struct uart_port *port)  in sunsab_type()  argument
797 	struct uart_sunsab_port *up = (void *)port;  in sunsab_type()
804 static void sunsab_release_port(struct uart_port *port)  in sunsab_release_port()  argument
808 static int sunsab_request_port(struct uart_port *port)  in sunsab_request_port()  argument
813 static void sunsab_config_port(struct uart_port *port, int flags)  in sunsab_config_port()  argument
817 static int sunsab_verify_port(struct uart_port *port, struct serial_struct *ser)  in sunsab_verify_port()  argument
852 static void sunsab_console_putchar(struct uart_port *port, int c)  in sunsab_console_putchar()  argument
855 		container_of(port, struct uart_sunsab_port, port);  in sunsab_console_putchar()
867 	if (up->port.sysrq || oops_in_progress)  in sunsab_console_write()
868 		locked = spin_trylock_irqsave(&up->port.lock, flags);  in sunsab_console_write()
870 		spin_lock_irqsave(&up->port.lock, flags);  in sunsab_console_write()
872 	uart_console_write(&up->port, s, n, sunsab_console_putchar);  in sunsab_console_write()
876 		spin_unlock_irqrestore(&up->port.lock, flags);  in sunsab_console_write()
891 	if (up->port.type != PORT_SUNSAB)  in sunsab_console_setup()
897 	sunserial_console_termios(con, up->port.dev->of_node);  in sunsab_console_setup()
918 	spin_lock_init(&up->port.lock);  in sunsab_console_setup()
923 	sunsab_startup(&up->port);  in sunsab_console_setup()
925 	spin_lock_irqsave(&up->port.lock, flags);  in sunsab_console_setup()
939 	quot = uart_get_divisor(&up->port, baud);  in sunsab_console_setup()
941 	sunsab_set_mctrl(&up->port, TIOCM_DTR | TIOCM_RTS);  in sunsab_console_setup()
943 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsab_console_setup()
972 	up->port.line = line;  in sunsab_init_one()
973 	up->port.dev = &op->dev;  in sunsab_init_one()
975 	up->port.mapbase = op->resource[0].start + offset;  in sunsab_init_one()
976 	up->port.membase = of_ioremap(&op->resource[0], offset,  in sunsab_init_one()
979 	if (!up->port.membase)  in sunsab_init_one()
981 	up->regs = (union sab82532_async_regs __iomem *) up->port.membase;  in sunsab_init_one()
983 	up->port.irq = op->archdata.irqs[0];  in sunsab_init_one()
985 	up->port.fifosize = SAB82532_XMIT_FIFO_SIZE;  in sunsab_init_one()
986 	up->port.iotype = UPIO_MEM;  in sunsab_init_one()
990 	up->port.ops = &sunsab_pops;  in sunsab_init_one()
991 	up->port.type = PORT_SUNSAB;  in sunsab_init_one()
992 	up->port.uartclk = SAB_BASE_BAUD;  in sunsab_init_one()
997 	if ((up->port.line & 0x1) == 0) {  in sunsab_init_one()
1041 				&sunsab_reg, up[0].port.line,  in sab_probe()
1045 				&sunsab_reg, up[1].port.line,  in sab_probe()
1048 	err = uart_add_one_port(&sunsab_reg, &up[0].port);  in sab_probe()
1052 	err = uart_add_one_port(&sunsab_reg, &up[1].port);  in sab_probe()
1063 	uart_remove_one_port(&sunsab_reg, &up[0].port);  in sab_probe()
1066 		   up[1].port.membase,  in sab_probe()
1070 		   up[0].port.membase,  in sab_probe()
1080 	uart_remove_one_port(&sunsab_reg, &up[1].port);  in sab_remove()
1081 	uart_remove_one_port(&sunsab_reg, &up[0].port);  in sab_remove()
1083 		   up[1].port.membase,  in sab_remove()
1086 		   up[0].port.membase,  in sab_remove()