158 static inline unsigned int sio_in(struct uart_port *up, int offset)  in sio_in()  argument
160 	switch (up->iotype) {  in sio_in()
162 		return __raw_readl(up->membase + offset);  in sio_in()
164 		return inl(up->iobase + offset);  in sio_in()
169 sio_out(struct uart_port *up, int offset, int value)  in sio_out()  argument
171 	switch (up->iotype) {  in sio_out()
173 		__raw_writel(value, up->membase + offset);  in sio_out()
176 		outl(value, up->iobase + offset);  in sio_out()
182 sio_mask(struct uart_port *up, int offset, unsigned int value)  in sio_mask()  argument
184 	sio_out(up, offset, sio_in(up, offset) & ~value);  in sio_mask()
187 sio_set(struct uart_port *up, int offset, unsigned int value)  in sio_set()  argument
189 	sio_out(up, offset, sio_in(up, offset) | value);  in sio_set()
193 sio_quot_set(struct uart_port *up, int quot)  in sio_quot_set()  argument
197 		sio_out(up, TXX9_SIBGR, quot | TXX9_SIBGR_BCLK_T0);  in sio_quot_set()
199 		sio_out(up, TXX9_SIBGR, (quot >> 2) | TXX9_SIBGR_BCLK_T2);  in sio_quot_set()
201 		sio_out(up, TXX9_SIBGR, (quot >> 4) | TXX9_SIBGR_BCLK_T4);  in sio_quot_set()
203 		sio_out(up, TXX9_SIBGR, (quot >> 6) | TXX9_SIBGR_BCLK_T6);  in sio_quot_set()
205 		sio_out(up, TXX9_SIBGR, 0xff | TXX9_SIBGR_BCLK_T6);  in sio_quot_set()
208 static void serial_txx9_stop_tx(struct uart_port *up)  in serial_txx9_stop_tx()  argument
210 	sio_mask(up, TXX9_SIDICR, TXX9_SIDICR_TIE);  in serial_txx9_stop_tx()
213 static void serial_txx9_start_tx(struct uart_port *up)  in serial_txx9_start_tx()  argument
215 	sio_set(up, TXX9_SIDICR, TXX9_SIDICR_TIE);  in serial_txx9_start_tx()
218 static void serial_txx9_stop_rx(struct uart_port *up)  in serial_txx9_stop_rx()  argument
220 	up->read_status_mask &= ~TXX9_SIDISR_RDIS;  in serial_txx9_stop_rx()
223 static void serial_txx9_initialize(struct uart_port *up)  in serial_txx9_initialize()  argument
227 	sio_out(up, TXX9_SIFCR, TXX9_SIFCR_SWRST);  in serial_txx9_initialize()
231 	while ((sio_in(up, TXX9_SIFCR) & TXX9_SIFCR_SWRST) && --tmout)  in serial_txx9_initialize()
234 	sio_set(up, TXX9_SIFCR,  in serial_txx9_initialize()
237 	sio_out(up, TXX9_SILCR,  in serial_txx9_initialize()
239 		((up->flags & UPF_TXX9_USE_SCLK) ?  in serial_txx9_initialize()
241 	sio_quot_set(up, uart_get_divisor(up, 9600));  in serial_txx9_initialize()
242 	sio_out(up, TXX9_SIFLCR, TXX9_SIFLCR_RTSTL_MAX /* 15 */);  in serial_txx9_initialize()
243 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_initialize()
247 receive_chars(struct uart_port *up, unsigned int *status)  in receive_chars()  argument
255 		ch = sio_in(up, TXX9_SIRFIFO);  in receive_chars()
257 		up->icount.rx++;  in receive_chars()
261 			up->ignore_status_mask & ~TXX9_SIDISR_RFDN_MASK;  in receive_chars()
269 				up->icount.brk++;  in receive_chars()
276 				if (uart_handle_break(up))  in receive_chars()
279 				up->icount.parity++;  in receive_chars()
281 				up->icount.frame++;  in receive_chars()
283 				up->icount.overrun++;  in receive_chars()
297 			disr &= up->read_status_mask;  in receive_chars()
306 		if (uart_handle_sysrq_char(up, ch))  in receive_chars()
309 		uart_insert_char(up, disr, TXX9_SIDISR_UOER, ch, flag);  in receive_chars()
312 		up->ignore_status_mask = next_ignore_status_mask;  in receive_chars()
313 		disr = sio_in(up, TXX9_SIDISR);  in receive_chars()
316 	tty_flip_buffer_push(&up->state->port);  in receive_chars()
321 static inline void transmit_chars(struct uart_port *up)  in transmit_chars()  argument
325 	uart_port_tx_limited(up, ch, TXX9_SIO_TX_FIFO,  in transmit_chars()
327 		sio_out(up, TXX9_SITFIFO, ch),  in transmit_chars()
334 	struct uart_port *up = dev_id;  in serial_txx9_interrupt()  local
338 		spin_lock(&up->lock);  in serial_txx9_interrupt()
339 		status = sio_in(up, TXX9_SIDISR);  in serial_txx9_interrupt()
340 		if (!(sio_in(up, TXX9_SIDICR) & TXX9_SIDICR_TIE))  in serial_txx9_interrupt()
344 			spin_unlock(&up->lock);  in serial_txx9_interrupt()
349 			receive_chars(up, &status);  in serial_txx9_interrupt()
351 			transmit_chars(up);  in serial_txx9_interrupt()
353 		sio_mask(up, TXX9_SIDISR,  in serial_txx9_interrupt()
356 		spin_unlock(&up->lock);  in serial_txx9_interrupt()
365 static unsigned int serial_txx9_tx_empty(struct uart_port *up)  in serial_txx9_tx_empty()  argument
370 	spin_lock_irqsave(&up->lock, flags);  in serial_txx9_tx_empty()
371 	ret = (sio_in(up, TXX9_SICISR) & TXX9_SICISR_TXALS) ? TIOCSER_TEMT : 0;  in serial_txx9_tx_empty()
372 	spin_unlock_irqrestore(&up->lock, flags);  in serial_txx9_tx_empty()
377 static unsigned int serial_txx9_get_mctrl(struct uart_port *up)  in serial_txx9_get_mctrl()  argument
383 	ret |= (sio_in(up, TXX9_SIFLCR) & TXX9_SIFLCR_RTSSC) ? 0 : TIOCM_RTS;  in serial_txx9_get_mctrl()
384 	ret |= (sio_in(up, TXX9_SICISR) & TXX9_SICISR_CTSS) ? 0 : TIOCM_CTS;  in serial_txx9_get_mctrl()
389 static void serial_txx9_set_mctrl(struct uart_port *up, unsigned int mctrl)  in serial_txx9_set_mctrl()  argument
393 		sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_RTSSC);  in serial_txx9_set_mctrl()
395 		sio_set(up, TXX9_SIFLCR, TXX9_SIFLCR_RTSSC);  in serial_txx9_set_mctrl()
398 static void serial_txx9_break_ctl(struct uart_port *up, int break_state)  in serial_txx9_break_ctl()  argument
402 	spin_lock_irqsave(&up->lock, flags);  in serial_txx9_break_ctl()
404 		sio_set(up, TXX9_SIFLCR, TXX9_SIFLCR_TBRK);  in serial_txx9_break_ctl()
406 		sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_TBRK);  in serial_txx9_break_ctl()
407 	spin_unlock_irqrestore(&up->lock, flags);  in serial_txx9_break_ctl()
414 static void wait_for_xmitr(struct uart_port *up)  in wait_for_xmitr()  argument
420 	       !(sio_in(up, TXX9_SICISR) & TXX9_SICISR_TXALS))  in wait_for_xmitr()
424 	if (up->flags & UPF_CONS_FLOW) {  in wait_for_xmitr()
427 		       (sio_in(up, TXX9_SICISR) & TXX9_SICISR_CTSS))  in wait_for_xmitr()
439 static int serial_txx9_get_poll_char(struct uart_port *up)  in serial_txx9_get_poll_char()  argument
447 	ier = sio_in(up, TXX9_SIDICR);  in serial_txx9_get_poll_char()
448 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_get_poll_char()
450 	while (sio_in(up, TXX9_SIDISR) & TXX9_SIDISR_UVALID)  in serial_txx9_get_poll_char()
453 	c = sio_in(up, TXX9_SIRFIFO);  in serial_txx9_get_poll_char()
459 	sio_mask(up, TXX9_SIDISR, TXX9_SIDISR_RDIS);  in serial_txx9_get_poll_char()
460 	sio_out(up, TXX9_SIDICR, ier);  in serial_txx9_get_poll_char()
465 static void serial_txx9_put_poll_char(struct uart_port *up, unsigned char c)  in serial_txx9_put_poll_char()  argument
472 	ier = sio_in(up, TXX9_SIDICR);  in serial_txx9_put_poll_char()
473 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_put_poll_char()
475 	wait_for_xmitr(up);  in serial_txx9_put_poll_char()
479 	sio_out(up, TXX9_SITFIFO, c);  in serial_txx9_put_poll_char()
485 	wait_for_xmitr(up);  in serial_txx9_put_poll_char()
486 	sio_out(up, TXX9_SIDICR, ier);  in serial_txx9_put_poll_char()
491 static int serial_txx9_startup(struct uart_port *up)  in serial_txx9_startup()  argument
500 	sio_set(up, TXX9_SIFCR,  in serial_txx9_startup()
503 	sio_mask(up, TXX9_SIFCR,  in serial_txx9_startup()
505 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_startup()
510 	sio_out(up, TXX9_SIDISR, 0);  in serial_txx9_startup()
512 	retval = request_irq(up->irq, serial_txx9_interrupt,  in serial_txx9_startup()
513 			     IRQF_SHARED, "serial_txx9", up);  in serial_txx9_startup()
520 	spin_lock_irqsave(&up->lock, flags);  in serial_txx9_startup()
521 	serial_txx9_set_mctrl(up, up->mctrl);  in serial_txx9_startup()
522 	spin_unlock_irqrestore(&up->lock, flags);  in serial_txx9_startup()
525 	sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_RSDE | TXX9_SIFLCR_TSDE);  in serial_txx9_startup()
530 	sio_set(up, TXX9_SIDICR, TXX9_SIDICR_RIE);  in serial_txx9_startup()
535 static void serial_txx9_shutdown(struct uart_port *up)  in serial_txx9_shutdown()  argument
542 	sio_out(up, TXX9_SIDICR, 0);	/* disable all intrs */  in serial_txx9_shutdown()
544 	spin_lock_irqsave(&up->lock, flags);  in serial_txx9_shutdown()
545 	serial_txx9_set_mctrl(up, up->mctrl);  in serial_txx9_shutdown()
546 	spin_unlock_irqrestore(&up->lock, flags);  in serial_txx9_shutdown()
551 	sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_TBRK);  in serial_txx9_shutdown()
554 	if (up->cons && up->line == up->cons->index) {  in serial_txx9_shutdown()
555 		free_irq(up->irq, up);  in serial_txx9_shutdown()
560 	sio_set(up, TXX9_SIFCR,  in serial_txx9_shutdown()
563 	sio_mask(up, TXX9_SIFCR,  in serial_txx9_shutdown()
567 	sio_set(up, TXX9_SIFLCR, TXX9_SIFLCR_RSDE | TXX9_SIFLCR_TSDE);  in serial_txx9_shutdown()
569 	free_irq(up->irq, up);  in serial_txx9_shutdown()
573 serial_txx9_set_termios(struct uart_port *up, struct ktermios *termios,  in serial_txx9_set_termios()  argument
586 	cval = sio_in(up, TXX9_SILCR);  in serial_txx9_set_termios()
617 	baud = uart_get_baud_rate(up, termios, old, 0, up->uartclk/16/2);  in serial_txx9_set_termios()
618 	quot = uart_get_divisor(up, baud);  in serial_txx9_set_termios()
628 	spin_lock_irqsave(&up->lock, flags);  in serial_txx9_set_termios()
633 	uart_update_timeout(up, termios->c_cflag, baud);  in serial_txx9_set_termios()
635 	up->read_status_mask = TXX9_SIDISR_UOER |  in serial_txx9_set_termios()
638 		up->read_status_mask |= TXX9_SIDISR_UFER | TXX9_SIDISR_UPER;  in serial_txx9_set_termios()
640 		up->read_status_mask |= TXX9_SIDISR_UBRK;  in serial_txx9_set_termios()
645 	up->ignore_status_mask = 0;  in serial_txx9_set_termios()
647 		up->ignore_status_mask |= TXX9_SIDISR_UPER | TXX9_SIDISR_UFER;  in serial_txx9_set_termios()
649 		up->ignore_status_mask |= TXX9_SIDISR_UBRK;  in serial_txx9_set_termios()
655 			up->ignore_status_mask |= TXX9_SIDISR_UOER;  in serial_txx9_set_termios()
662 		up->ignore_status_mask |= TXX9_SIDISR_RDIS;  in serial_txx9_set_termios()
666 	    (up->flags & UPF_TXX9_HAVE_CTS_LINE)) {  in serial_txx9_set_termios()
667 		sio_set(up, TXX9_SIFLCR,  in serial_txx9_set_termios()
670 		sio_mask(up, TXX9_SIFLCR,  in serial_txx9_set_termios()
674 	sio_out(up, TXX9_SILCR, cval);  in serial_txx9_set_termios()
675 	sio_quot_set(up, quot);  in serial_txx9_set_termios()
676 	sio_out(up, TXX9_SIFCR, fcr);  in serial_txx9_set_termios()
678 	serial_txx9_set_mctrl(up, up->mctrl);  in serial_txx9_set_termios()
679 	spin_unlock_irqrestore(&up->lock, flags);  in serial_txx9_set_termios()
698 static int serial_txx9_request_resource(struct uart_port *up)  in serial_txx9_request_resource()  argument
703 	switch (up->iotype) {  in serial_txx9_request_resource()
705 		if (!up->mapbase)  in serial_txx9_request_resource()
708 		if (!request_mem_region(up->mapbase, size, "serial_txx9")) {  in serial_txx9_request_resource()
713 		if (up->flags & UPF_IOREMAP) {  in serial_txx9_request_resource()
714 			up->membase = ioremap(up->mapbase, size);  in serial_txx9_request_resource()
715 			if (!up->membase) {  in serial_txx9_request_resource()
716 				release_mem_region(up->mapbase, size);  in serial_txx9_request_resource()
723 		if (!request_region(up->iobase, size, "serial_txx9"))  in serial_txx9_request_resource()
730 static void serial_txx9_release_resource(struct uart_port *up)  in serial_txx9_release_resource()  argument
734 	switch (up->iotype) {  in serial_txx9_release_resource()
736 		if (!up->mapbase)  in serial_txx9_release_resource()
739 		if (up->flags & UPF_IOREMAP) {  in serial_txx9_release_resource()
740 			iounmap(up->membase);  in serial_txx9_release_resource()
741 			up->membase = NULL;  in serial_txx9_release_resource()
744 		release_mem_region(up->mapbase, size);  in serial_txx9_release_resource()
748 		release_region(up->iobase, size);  in serial_txx9_release_resource()
753 static void serial_txx9_release_port(struct uart_port *up)  in serial_txx9_release_port()  argument
755 	serial_txx9_release_resource(up);  in serial_txx9_release_port()
758 static int serial_txx9_request_port(struct uart_port *up)  in serial_txx9_request_port()  argument
760 	return serial_txx9_request_resource(up);  in serial_txx9_request_port()
763 static void serial_txx9_config_port(struct uart_port *up, int uflags)  in serial_txx9_config_port()  argument
771 	ret = serial_txx9_request_resource(up);  in serial_txx9_config_port()
774 	up->type = PORT_TXX9;  in serial_txx9_config_port()
775 	up->fifosize = TXX9_SIO_TX_FIFO;  in serial_txx9_config_port()
778 	if (up->line == up->cons->index)  in serial_txx9_config_port()
781 	serial_txx9_initialize(up);  in serial_txx9_config_port()
820 		struct uart_port *up = &serial_txx9_ports[i];  in serial_txx9_register_ports()  local
822 		up->line = i;  in serial_txx9_register_ports()
823 		up->ops = &serial_txx9_pops;  in serial_txx9_register_ports()
824 		up->dev = dev;  in serial_txx9_register_ports()
825 		if (up->iobase || up->mapbase)  in serial_txx9_register_ports()
826 			uart_add_one_port(drv, up);  in serial_txx9_register_ports()
832 static void serial_txx9_console_putchar(struct uart_port *up, unsigned char ch)  in serial_txx9_console_putchar()  argument
834 	wait_for_xmitr(up);  in serial_txx9_console_putchar()
835 	sio_out(up, TXX9_SITFIFO, ch);  in serial_txx9_console_putchar()
847 	struct uart_port *up = &serial_txx9_ports[co->index];  in serial_txx9_console_write()  local
853 	ier = sio_in(up, TXX9_SIDICR);  in serial_txx9_console_write()
854 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_console_write()
858 	flcr = sio_in(up, TXX9_SIFLCR);  in serial_txx9_console_write()
859 	if (!(up->flags & UPF_CONS_FLOW) && (flcr & TXX9_SIFLCR_TES))  in serial_txx9_console_write()
860 		sio_out(up, TXX9_SIFLCR, flcr & ~TXX9_SIFLCR_TES);  in serial_txx9_console_write()
862 	uart_console_write(up, s, count, serial_txx9_console_putchar);  in serial_txx9_console_write()
868 	wait_for_xmitr(up);  in serial_txx9_console_write()
869 	sio_out(up, TXX9_SIFLCR, flcr);  in serial_txx9_console_write()
870 	sio_out(up, TXX9_SIDICR, ier);  in serial_txx9_console_write()
875 	struct uart_port *up;  in serial_txx9_console_setup()  local
888 	up = &serial_txx9_ports[co->index];  in serial_txx9_console_setup()
889 	if (!up->ops)  in serial_txx9_console_setup()
892 	serial_txx9_initialize(up);  in serial_txx9_console_setup()
897 	return uart_set_options(up, co, baud, parity, bits, flow);  in serial_txx9_console_setup()
1060 		struct uart_port *up = &serial_txx9_ports[i];  in serial_txx9_remove()  local
1062 		if (up->dev == &dev->dev)  in serial_txx9_remove()
1074 		struct uart_port *up = &serial_txx9_ports[i];  in serial_txx9_suspend()  local
1076 		if (up->type != PORT_UNKNOWN && up->dev == &dev->dev)  in serial_txx9_suspend()
1077 			uart_suspend_port(&serial_txx9_reg, up);  in serial_txx9_suspend()
1088 		struct uart_port *up = &serial_txx9_ports[i];  in serial_txx9_resume()  local
1090 		if (up->type != PORT_UNKNOWN && up->dev == &dev->dev)  in serial_txx9_resume()
1091 			uart_resume_port(&serial_txx9_reg, up);  in serial_txx9_resume()
1147 	struct uart_port *up = pci_get_drvdata(dev);  in pciserial_txx9_remove_one()  local
1149 	if (up) {  in pciserial_txx9_remove_one()
1150 		serial_txx9_unregister_port(up->line);  in pciserial_txx9_remove_one()
1158 	struct uart_port *up = pci_get_drvdata(dev);  in pciserial_txx9_suspend_one()  local
1160 	if (up)  in pciserial_txx9_suspend_one()
1161 		uart_suspend_port(&serial_txx9_reg, up);  in pciserial_txx9_suspend_one()
1169 	struct uart_port *up = pci_get_drvdata(dev);  in pciserial_txx9_resume_one()  local
1173 	if (up)  in pciserial_txx9_resume_one()
1174 		uart_resume_port(&serial_txx9_reg, up);  in pciserial_txx9_resume_one()
1254 		struct uart_port *up = &serial_txx9_ports[i];  in serial_txx9_exit()  local
1255 		if (up->iobase || up->mapbase)  in serial_txx9_exit()
1256 			uart_remove_one_port(&serial_txx9_reg, up);  in serial_txx9_exit()