88 	struct uart_port	port;  member
109 	offset <<= up->port.regshift;  in serial_in()
111 	switch (up->port.iotype) {  in serial_in()
113 		outb(up->port.hub6 - 1 + offset, up->port.iobase);  in serial_in()
114 		return inb(up->port.iobase + 1);  in serial_in()
117 		return readb(up->port.membase + offset);  in serial_in()
120 		return inb(up->port.iobase + offset);  in serial_in()
138 	offset <<= up->port.regshift;  in serial_out()
140 	switch (up->port.iotype) {  in serial_out()
142 		outb(up->port.hub6 - 1 + offset, up->port.iobase);  in serial_out()
143 		outb(value, up->port.iobase + 1);  in serial_out()
147 		writeb(value, up->port.membase + offset);  in serial_out()
151 		outb(value, up->port.iobase + offset);  in serial_out()
208 		up->port.uartclk = SERIAL_RSA_BAUD_BASE * 16;  in __enable_rsa()
215 	if (up->port.type == PORT_RSA) {  in enable_rsa()
216 		if (up->port.uartclk != SERIAL_RSA_BAUD_BASE * 16) {  in enable_rsa()
217 			spin_lock_irq(&up->port.lock);  in enable_rsa()
219 			spin_unlock_irq(&up->port.lock);  in enable_rsa()
221 		if (up->port.uartclk == SERIAL_RSA_BAUD_BASE * 16)  in enable_rsa()
237 	if (up->port.type == PORT_RSA &&  in disable_rsa()
238 	    up->port.uartclk == SERIAL_RSA_BAUD_BASE * 16) {  in disable_rsa()
239 		spin_lock_irq(&up->port.lock);  in disable_rsa()
251 			up->port.uartclk = SERIAL_RSA_BAUD_BASE_LO * 16;  in disable_rsa()
252 		spin_unlock_irq(&up->port.lock);  in disable_rsa()
265 static void sunsu_stop_tx(struct uart_port *port)  in sunsu_stop_tx()  argument
268 		container_of(port, struct uart_sunsu_port, port);  in sunsu_stop_tx()
275 	if (up->port.type == PORT_16C950) {  in sunsu_stop_tx()
281 static void sunsu_start_tx(struct uart_port *port)  in sunsu_start_tx()  argument
284 		container_of(port, struct uart_sunsu_port, port);  in sunsu_start_tx()
294 	if (up->port.type == PORT_16C950 && up->acr & UART_ACR_TXDIS) {  in sunsu_start_tx()
300 static void sunsu_stop_rx(struct uart_port *port)  in sunsu_stop_rx()  argument
303 		container_of(port, struct uart_sunsu_port, port);  in sunsu_stop_rx()
306 	up->port.read_status_mask &= ~UART_LSR_DR;  in sunsu_stop_rx()
310 static void sunsu_enable_ms(struct uart_port *port)  in sunsu_enable_ms()  argument
313 		container_of(port, struct uart_sunsu_port, port);  in sunsu_enable_ms()
316 	spin_lock_irqsave(&up->port.lock, flags);  in sunsu_enable_ms()
319 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsu_enable_ms()
325 	struct tty_port *port = &up->port.state->port;  in receive_chars()  local
333 		up->port.icount.rx++;  in receive_chars()
342 				up->port.icount.brk++;  in receive_chars()
343 				if (up->port.cons != NULL &&  in receive_chars()
344 				    up->port.line == up->port.cons->index)  in receive_chars()
352 				if (uart_handle_break(&up->port))  in receive_chars()
355 				up->port.icount.parity++;  in receive_chars()
357 				up->port.icount.frame++;  in receive_chars()
359 				up->port.icount.overrun++;  in receive_chars()
364 			*status &= up->port.read_status_mask;  in receive_chars()
366 			if (up->port.cons != NULL &&  in receive_chars()
367 			    up->port.line == up->port.cons->index) {  in receive_chars()
380 		if (uart_handle_sysrq_char(&up->port, ch))  in receive_chars()
382 		if ((*status & up->port.ignore_status_mask) == 0)  in receive_chars()
383 			tty_insert_flip_char(port, ch, flag);  in receive_chars()
390 			 tty_insert_flip_char(port, 0, TTY_OVERRUN);  in receive_chars()
401 	struct circ_buf *xmit = &up->port.state->xmit;  in transmit_chars()
404 	if (up->port.x_char) {  in transmit_chars()
405 		serial_outp(up, UART_TX, up->port.x_char);  in transmit_chars()
406 		up->port.icount.tx++;  in transmit_chars()
407 		up->port.x_char = 0;  in transmit_chars()
410 	if (uart_tx_stopped(&up->port)) {  in transmit_chars()
411 		sunsu_stop_tx(&up->port);  in transmit_chars()
419 	count = up->port.fifosize;  in transmit_chars()
423 		up->port.icount.tx++;  in transmit_chars()
429 		uart_write_wakeup(&up->port);  in transmit_chars()
445 		up->port.icount.rng++;  in check_modem_status()
447 		up->port.icount.dsr++;  in check_modem_status()
449 		uart_handle_dcd_change(&up->port, status & UART_MSR_DCD);  in check_modem_status()
451 		uart_handle_cts_change(&up->port, status & UART_MSR_CTS);  in check_modem_status()
453 	wake_up_interruptible(&up->port.state->port.delta_msr_wait);  in check_modem_status()
462 	spin_lock_irqsave(&up->port.lock, flags);  in sunsu_serial_interrupt()
472 		spin_unlock_irqrestore(&up->port.lock, flags);  in sunsu_serial_interrupt()
474 		tty_flip_buffer_push(&up->port.state->port);  in sunsu_serial_interrupt()
476 		spin_lock_irqsave(&up->port.lock, flags);  in sunsu_serial_interrupt()
480 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsu_serial_interrupt()
488 sunsu_change_speed(struct uart_port *port, unsigned int cflag,
499 	quot = up->port.uartclk / (16 * new_baud);  in sunsu_change_mouse_baud()
501 	sunsu_change_speed(&up->port, up->cflag, 0, quot);  in sunsu_change_mouse_baud()
548 static unsigned int sunsu_tx_empty(struct uart_port *port)  in sunsu_tx_empty()  argument
551 		container_of(port, struct uart_sunsu_port, port);  in sunsu_tx_empty()
555 	spin_lock_irqsave(&up->port.lock, flags);  in sunsu_tx_empty()
557 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsu_tx_empty()
562 static unsigned int sunsu_get_mctrl(struct uart_port *port)  in sunsu_get_mctrl()  argument
565 		container_of(port, struct uart_sunsu_port, port);  in sunsu_get_mctrl()
583 static void sunsu_set_mctrl(struct uart_port *port, unsigned int mctrl)  in sunsu_set_mctrl()  argument
586 		container_of(port, struct uart_sunsu_port, port);  in sunsu_set_mctrl()
603 static void sunsu_break_ctl(struct uart_port *port, int break_state)  in sunsu_break_ctl()  argument
606 		container_of(port, struct uart_sunsu_port, port);  in sunsu_break_ctl()
609 	spin_lock_irqsave(&up->port.lock, flags);  in sunsu_break_ctl()
615 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsu_break_ctl()
618 static int sunsu_startup(struct uart_port *port)  in sunsu_startup()  argument
621 		container_of(port, struct uart_sunsu_port, port);  in sunsu_startup()
625 	if (up->port.type == PORT_16C950) {  in sunsu_startup()
650 	if (uart_config[up->port.type].flags & UART_CLEAR_FIFO) {  in sunsu_startup()
670 	if (!(up->port.flags & UPF_BUGGY_UART) &&  in sunsu_startup()
672 		printk("ttyS%d: LSR safety check engaged!\n", up->port.line);  in sunsu_startup()
677 		retval = request_irq(up->port.irq, sunsu_kbd_ms_interrupt,  in sunsu_startup()
680 		retval = request_irq(up->port.irq, sunsu_serial_interrupt,  in sunsu_startup()
684 		printk("su: Cannot register IRQ %d\n", up->port.irq);  in sunsu_startup()
693 	spin_lock_irqsave(&up->port.lock, flags);  in sunsu_startup()
695 	up->port.mctrl |= TIOCM_OUT2;  in sunsu_startup()
697 	sunsu_set_mctrl(&up->port, up->port.mctrl);  in sunsu_startup()
698 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsu_startup()
708 	if (up->port.flags & UPF_FOURPORT) {  in sunsu_startup()
713 		icp = (up->port.iobase & 0xfe0) | 0x01f;  in sunsu_startup()
729 static void sunsu_shutdown(struct uart_port *port)  in sunsu_shutdown()  argument
732 		container_of(port, struct uart_sunsu_port, port);  in sunsu_shutdown()
741 	spin_lock_irqsave(&up->port.lock, flags);  in sunsu_shutdown()
742 	if (up->port.flags & UPF_FOURPORT) {  in sunsu_shutdown()
744 		inb((up->port.iobase & 0xfe0) | 0x1f);  in sunsu_shutdown()
745 		up->port.mctrl |= TIOCM_OUT1;  in sunsu_shutdown()
747 		up->port.mctrl &= ~TIOCM_OUT2;  in sunsu_shutdown()
749 	sunsu_set_mctrl(&up->port, up->port.mctrl);  in sunsu_shutdown()
750 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsu_shutdown()
773 	free_irq(up->port.irq, up);  in sunsu_shutdown()
777 sunsu_change_speed(struct uart_port *port, unsigned int cflag,  in sunsu_change_speed()  argument
781 		container_of(port, struct uart_sunsu_port, port);  in sunsu_change_speed()
817 	if ((quot & 0xff) == 0 && up->port.type == PORT_16C950 &&  in sunsu_change_speed()
821 	if (uart_config[up->port.type].flags & UART_USE_FIFO) {  in sunsu_change_speed()
822 		if ((up->port.uartclk / quot) < (2400 * 16))  in sunsu_change_speed()
825 		else if (up->port.type == PORT_RSA)  in sunsu_change_speed()
831 	if (up->port.type == PORT_16750)  in sunsu_change_speed()
838 	spin_lock_irqsave(&up->port.lock, flags);  in sunsu_change_speed()
843 	uart_update_timeout(port, cflag, (port->uartclk / (16 * quot)));  in sunsu_change_speed()
845 	up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;  in sunsu_change_speed()
847 		up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;  in sunsu_change_speed()
849 		up->port.read_status_mask |= UART_LSR_BI;  in sunsu_change_speed()
854 	up->port.ignore_status_mask = 0;  in sunsu_change_speed()
856 		up->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;  in sunsu_change_speed()
858 		up->port.ignore_status_mask |= UART_LSR_BI;  in sunsu_change_speed()
864 			up->port.ignore_status_mask |= UART_LSR_OE;  in sunsu_change_speed()
871 		up->port.ignore_status_mask |= UART_LSR_DR;  in sunsu_change_speed()
877 	if (UART_ENABLE_MS(&up->port, cflag))  in sunsu_change_speed()
882 	if (uart_config[up->port.type].flags & UART_STARTECH) {  in sunsu_change_speed()
889 	if (up->port.type == PORT_16750)  in sunsu_change_speed()
893 	if (up->port.type != PORT_16750) {  in sunsu_change_speed()
903 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsu_change_speed()
907 sunsu_set_termios(struct uart_port *port, struct ktermios *termios,  in sunsu_set_termios()  argument
915 	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);   in sunsu_set_termios()
916 	quot = uart_get_divisor(port, baud);  in sunsu_set_termios()
918 	sunsu_change_speed(port, termios->c_cflag, termios->c_iflag, quot);  in sunsu_set_termios()
921 static void sunsu_release_port(struct uart_port *port)  in sunsu_release_port()  argument
925 static int sunsu_request_port(struct uart_port *port)  in sunsu_request_port()  argument
930 static void sunsu_config_port(struct uart_port *port, int flags)  in sunsu_config_port()  argument
933 		container_of(port, struct uart_sunsu_port, port);  in sunsu_config_port()
941 		port->type = up->type_probed;	/* XXX */  in sunsu_config_port()
946 sunsu_verify_port(struct uart_port *port, struct serial_struct *ser)  in sunsu_verify_port()  argument
952 sunsu_type(struct uart_port *port)  in sunsu_type()  argument
954 	int type = port->type;  in sunsu_type()
1048 	up->port.iotype = UPIO_MEM;  in sunsu_autoconfig()
1050 	spin_lock_irqsave(&up->port.lock, flags);  in sunsu_autoconfig()
1052 	if (!(up->port.flags & UPF_BUGGY_UART)) {  in sunsu_autoconfig()
1090 	if (!(up->port.flags & UPF_SKIP_TEST)) {  in sunsu_autoconfig()
1104 			up->port.type = PORT_16450;  in sunsu_autoconfig()
1107 			up->port.type = PORT_UNKNOWN;  in sunsu_autoconfig()
1110 			up->port.type = PORT_16550;  in sunsu_autoconfig()
1113 			up->port.type = PORT_16550A;  in sunsu_autoconfig()
1116 	if (up->port.type == PORT_16550A) {  in sunsu_autoconfig()
1120 			up->port.type = PORT_16650;  in sunsu_autoconfig()
1124 				up->port.type = PORT_16650V2;  in sunsu_autoconfig()
1127 	if (up->port.type == PORT_16550A) {  in sunsu_autoconfig()
1146 				up->port.type = PORT_16750;  in sunsu_autoconfig()
1151 	if (up->port.type == PORT_16450) {  in sunsu_autoconfig()
1160 			up->port.type = PORT_8250;  in sunsu_autoconfig()
1163 	up->port.fifosize = uart_config[up->port.type].dfl_xmit_fifo_size;  in sunsu_autoconfig()
1165 	if (up->port.type == PORT_UNKNOWN)  in sunsu_autoconfig()
1167 	up->type_probed = up->port.type;	/* XXX */  in sunsu_autoconfig()
1173 	if (up->port.type == PORT_RSA)  in sunsu_autoconfig()
1185 	spin_unlock_irqrestore(&up->port.lock, flags);  in sunsu_autoconfig()
1209 	quot = up->port.uartclk / (16 * baud);  in sunsu_kbd_ms_init()
1212 	if (up->port.type == PORT_UNKNOWN)  in sunsu_kbd_ms_init()
1216 	       up->port.dev->of_node->full_name,  in sunsu_kbd_ms_init()
1218 	       (unsigned long long) up->port.mapbase,  in sunsu_kbd_ms_init()
1219 	       up->port.irq);  in sunsu_kbd_ms_init()
1235 		(!(up->port.line & 1) ? "su/serio0" : "su/serio1"),  in sunsu_kbd_ms_init()
1241 	serio->dev.parent = up->port.dev;  in sunsu_kbd_ms_init()
1246 	sunsu_change_speed(&up->port, up->cflag, 0, quot);  in sunsu_kbd_ms_init()
1248 	sunsu_startup(&up->port);  in sunsu_kbd_ms_init()
1282 	if (up->port.flags & UPF_CONS_FLOW) {  in wait_for_xmitr()
1290 static void sunsu_console_putchar(struct uart_port *port, int ch)  in sunsu_console_putchar()  argument
1293 		container_of(port, struct uart_sunsu_port, port);  in sunsu_console_putchar()
1311 	if (up->port.sysrq || oops_in_progress)  in sunsu_console_write()
1312 		locked = spin_trylock_irqsave(&up->port.lock, flags);  in sunsu_console_write()
1314 		spin_lock_irqsave(&up->port.lock, flags);  in sunsu_console_write()
1322 	uart_console_write(&up->port, s, count, sunsu_console_putchar);  in sunsu_console_write()
1332 		spin_unlock_irqrestore(&up->port.lock, flags);  in sunsu_console_write()
1345 	struct uart_port *port;  in sunsu_console_setup()  local
1352 	port = &sunsu_ports[co->index].port;  in sunsu_console_setup()
1357 	spin_lock_init(&port->lock);  in sunsu_console_setup()
1360 	sunserial_console_termios(co, port->dev->of_node);  in sunsu_console_setup()
1364 	port->mctrl |= TIOCM_DTR;  in sunsu_console_setup()
1365 	port->ops->set_termios(port, &termios, &dummy);  in sunsu_console_setup()
1434 	up->port.line = nr_inst;  in su_probe()
1436 	spin_lock_init(&up->port.lock);  in su_probe()
1441 	up->port.mapbase = rp->start;  in su_probe()
1443 	up->port.membase = of_ioremap(rp, 0, up->reg_size, "su");  in su_probe()
1444 	if (!up->port.membase) {  in su_probe()
1450 	up->port.irq = op->archdata.irqs[0];  in su_probe()
1452 	up->port.dev = &op->dev;  in su_probe()
1454 	up->port.type = PORT_UNKNOWN;  in su_probe()
1455 	up->port.uartclk = (SU_BASE_BAUD * 16);  in su_probe()
1462 				   up->port.membase, up->reg_size);  in su_probe()
1473 	up->port.flags |= UPF_BOOT_AUTOCONF;  in su_probe()
1478 	if (up->port.type == PORT_UNKNOWN)  in su_probe()
1481 	up->port.ops = &sunsu_pops;  in su_probe()
1489 				&sunsu_reg, up->port.line,  in su_probe()
1491 	err = uart_add_one_port(&sunsu_reg, &up->port);  in su_probe()
1502 	of_iounmap(&op->resource[0], up->port.membase, up->reg_size);  in su_probe()
1519 	} else if (up->port.type != PORT_UNKNOWN)  in su_remove()
1520 		uart_remove_one_port(&sunsu_reg, &up->port);  in su_remove()
1522 	if (up->port.membase)  in su_remove()
1523 		of_iounmap(&op->resource[0], up->port.membase, up->reg_size);  in su_remove()