170 static inline unsigned int sio_in(struct uart_txx9_port *up, int offset)  in sio_in()  argument
172 	switch (up->port.iotype) {  in sio_in()
174 		return __raw_readl(up->port.membase + offset);  in sio_in()
176 		return inl(up->port.iobase + offset);  in sio_in()
181 sio_out(struct uart_txx9_port *up, int offset, int value)  in sio_out()  argument
183 	switch (up->port.iotype) {  in sio_out()
185 		__raw_writel(value, up->port.membase + offset);  in sio_out()
188 		outl(value, up->port.iobase + offset);  in sio_out()
194 sio_mask(struct uart_txx9_port *up, int offset, unsigned int value)  in sio_mask()  argument
196 	sio_out(up, offset, sio_in(up, offset) & ~value);  in sio_mask()
199 sio_set(struct uart_txx9_port *up, int offset, unsigned int value)  in sio_set()  argument
201 	sio_out(up, offset, sio_in(up, offset) | value);  in sio_set()
205 sio_quot_set(struct uart_txx9_port *up, int quot)  in sio_quot_set()  argument
209 		sio_out(up, TXX9_SIBGR, quot | TXX9_SIBGR_BCLK_T0);  in sio_quot_set()
211 		sio_out(up, TXX9_SIBGR, (quot >> 2) | TXX9_SIBGR_BCLK_T2);  in sio_quot_set()
213 		sio_out(up, TXX9_SIBGR, (quot >> 4) | TXX9_SIBGR_BCLK_T4);  in sio_quot_set()
215 		sio_out(up, TXX9_SIBGR, (quot >> 6) | TXX9_SIBGR_BCLK_T6);  in sio_quot_set()
217 		sio_out(up, TXX9_SIBGR, 0xff | TXX9_SIBGR_BCLK_T6);  in sio_quot_set()
227 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_stop_tx()  local
228 	sio_mask(up, TXX9_SIDICR, TXX9_SIDICR_TIE);  in serial_txx9_stop_tx()
233 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_start_tx()  local
234 	sio_set(up, TXX9_SIDICR, TXX9_SIDICR_TIE);  in serial_txx9_start_tx()
239 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_stop_rx()  local
240 	up->port.read_status_mask &= ~TXX9_SIDISR_RDIS;  in serial_txx9_stop_rx()
245 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_initialize()  local
248 	sio_out(up, TXX9_SIFCR, TXX9_SIFCR_SWRST);  in serial_txx9_initialize()
252 	while ((sio_in(up, TXX9_SIFCR) & TXX9_SIFCR_SWRST) && --tmout)  in serial_txx9_initialize()
255 	sio_set(up, TXX9_SIFCR,  in serial_txx9_initialize()
258 	sio_out(up, TXX9_SILCR,  in serial_txx9_initialize()
260 		((up->port.flags & UPF_TXX9_USE_SCLK) ?  in serial_txx9_initialize()
262 	sio_quot_set(up, uart_get_divisor(port, 9600));  in serial_txx9_initialize()
263 	sio_out(up, TXX9_SIFLCR, TXX9_SIFLCR_RTSTL_MAX /* 15 */);  in serial_txx9_initialize()
264 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_initialize()
268 receive_chars(struct uart_txx9_port *up, unsigned int *status)  in receive_chars()  argument
277 		ch = sio_in(up, TXX9_SIRFIFO);  in receive_chars()
279 		up->port.icount.rx++;  in receive_chars()
283 			up->port.ignore_status_mask & ~TXX9_SIDISR_RFDN_MASK;  in receive_chars()
291 				up->port.icount.brk++;  in receive_chars()
298 				if (uart_handle_break(&up->port))  in receive_chars()
301 				up->port.icount.parity++;  in receive_chars()
303 				up->port.icount.frame++;  in receive_chars()
305 				up->port.icount.overrun++;  in receive_chars()
319 			disr &= up->port.read_status_mask;  in receive_chars()
328 		if (uart_handle_sysrq_char(&up->port, ch))  in receive_chars()
331 		uart_insert_char(&up->port, disr, TXX9_SIDISR_UOER, ch, flag);  in receive_chars()
334 		up->port.ignore_status_mask = next_ignore_status_mask;  in receive_chars()
335 		disr = sio_in(up, TXX9_SIDISR);  in receive_chars()
337 	spin_unlock(&up->port.lock);  in receive_chars()
338 	tty_flip_buffer_push(&up->port.state->port);  in receive_chars()
339 	spin_lock(&up->port.lock);  in receive_chars()
343 static inline void transmit_chars(struct uart_txx9_port *up)  in transmit_chars()  argument
345 	struct circ_buf *xmit = &up->port.state->xmit;  in transmit_chars()
348 	if (up->port.x_char) {  in transmit_chars()
349 		sio_out(up, TXX9_SITFIFO, up->port.x_char);  in transmit_chars()
350 		up->port.icount.tx++;  in transmit_chars()
351 		up->port.x_char = 0;  in transmit_chars()
354 	if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {  in transmit_chars()
355 		serial_txx9_stop_tx(&up->port);  in transmit_chars()
361 		sio_out(up, TXX9_SITFIFO, xmit->buf[xmit->tail]);  in transmit_chars()
363 		up->port.icount.tx++;  in transmit_chars()
369 		uart_write_wakeup(&up->port);  in transmit_chars()
372 		serial_txx9_stop_tx(&up->port);  in transmit_chars()
378 	struct uart_txx9_port *up = dev_id;  in serial_txx9_interrupt()  local
382 		spin_lock(&up->port.lock);  in serial_txx9_interrupt()
383 		status = sio_in(up, TXX9_SIDISR);  in serial_txx9_interrupt()
384 		if (!(sio_in(up, TXX9_SIDICR) & TXX9_SIDICR_TIE))  in serial_txx9_interrupt()
388 			spin_unlock(&up->port.lock);  in serial_txx9_interrupt()
393 			receive_chars(up, &status);  in serial_txx9_interrupt()
395 			transmit_chars(up);  in serial_txx9_interrupt()
397 		sio_mask(up, TXX9_SIDISR,  in serial_txx9_interrupt()
400 		spin_unlock(&up->port.lock);  in serial_txx9_interrupt()
411 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_tx_empty()  local
415 	spin_lock_irqsave(&up->port.lock, flags);  in serial_txx9_tx_empty()
416 	ret = (sio_in(up, TXX9_SICISR) & TXX9_SICISR_TXALS) ? TIOCSER_TEMT : 0;  in serial_txx9_tx_empty()
417 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_txx9_tx_empty()
424 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_get_mctrl()  local
429 	ret |= (sio_in(up, TXX9_SIFLCR) & TXX9_SIFLCR_RTSSC) ? 0 : TIOCM_RTS;  in serial_txx9_get_mctrl()
430 	ret |= (sio_in(up, TXX9_SICISR) & TXX9_SICISR_CTSS) ? 0 : TIOCM_CTS;  in serial_txx9_get_mctrl()
437 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_set_mctrl()  local
440 		sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_RTSSC);  in serial_txx9_set_mctrl()
442 		sio_set(up, TXX9_SIFLCR, TXX9_SIFLCR_RTSSC);  in serial_txx9_set_mctrl()
447 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_break_ctl()  local
450 	spin_lock_irqsave(&up->port.lock, flags);  in serial_txx9_break_ctl()
452 		sio_set(up, TXX9_SIFLCR, TXX9_SIFLCR_TBRK);  in serial_txx9_break_ctl()
454 		sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_TBRK);  in serial_txx9_break_ctl()
455 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_txx9_break_ctl()
462 static void wait_for_xmitr(struct uart_txx9_port *up)  in wait_for_xmitr()  argument
466 	/* Wait up to 10ms for the character(s) to be sent. */  in wait_for_xmitr()
468 	       !(sio_in(up, TXX9_SICISR) & TXX9_SICISR_TXALS))  in wait_for_xmitr()
471 	/* Wait up to 1s for flow control if necessary */  in wait_for_xmitr()
472 	if (up->port.flags & UPF_CONS_FLOW) {  in wait_for_xmitr()
475 		       (sio_in(up, TXX9_SICISR) & TXX9_SICISR_CTSS))  in wait_for_xmitr()
491 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_get_poll_char()  local
496 	ier = sio_in(up, TXX9_SIDICR);  in serial_txx9_get_poll_char()
497 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_get_poll_char()
499 	while (sio_in(up, TXX9_SIDISR) & TXX9_SIDISR_UVALID)  in serial_txx9_get_poll_char()
502 	c = sio_in(up, TXX9_SIRFIFO);  in serial_txx9_get_poll_char()
508 	sio_mask(up, TXX9_SIDISR, TXX9_SIDISR_RDIS);  in serial_txx9_get_poll_char()
509 	sio_out(up, TXX9_SIDICR, ier);  in serial_txx9_get_poll_char()
517 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_put_poll_char()  local
522 	ier = sio_in(up, TXX9_SIDICR);  in serial_txx9_put_poll_char()
523 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_put_poll_char()
525 	wait_for_xmitr(up);  in serial_txx9_put_poll_char()
529 	sio_out(up, TXX9_SITFIFO, c);  in serial_txx9_put_poll_char()
535 	wait_for_xmitr(up);  in serial_txx9_put_poll_char()
536 	sio_out(up, TXX9_SIDICR, ier);  in serial_txx9_put_poll_char()
543 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_startup()  local
551 	sio_set(up, TXX9_SIFCR,  in serial_txx9_startup()
554 	sio_mask(up, TXX9_SIFCR,  in serial_txx9_startup()
556 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_startup()
561 	sio_out(up, TXX9_SIDISR, 0);  in serial_txx9_startup()
563 	retval = request_irq(up->port.irq, serial_txx9_interrupt,  in serial_txx9_startup()
564 			     IRQF_SHARED, "serial_txx9", up);  in serial_txx9_startup()
571 	spin_lock_irqsave(&up->port.lock, flags);  in serial_txx9_startup()
572 	serial_txx9_set_mctrl(&up->port, up->port.mctrl);  in serial_txx9_startup()
573 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_txx9_startup()
576 	sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_RSDE | TXX9_SIFLCR_TSDE);  in serial_txx9_startup()
581 	sio_set(up, TXX9_SIDICR, TXX9_SIDICR_RIE);  in serial_txx9_startup()
588 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_shutdown()  local
594 	sio_out(up, TXX9_SIDICR, 0);	/* disable all intrs */  in serial_txx9_shutdown()
596 	spin_lock_irqsave(&up->port.lock, flags);  in serial_txx9_shutdown()
597 	serial_txx9_set_mctrl(&up->port, up->port.mctrl);  in serial_txx9_shutdown()
598 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_txx9_shutdown()
603 	sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_TBRK);  in serial_txx9_shutdown()
606 	if (up->port.cons && up->port.line == up->port.cons->index) {  in serial_txx9_shutdown()
607 		free_irq(up->port.irq, up);  in serial_txx9_shutdown()
612 	sio_set(up, TXX9_SIFCR,  in serial_txx9_shutdown()
615 	sio_mask(up, TXX9_SIFCR,  in serial_txx9_shutdown()
619 	sio_set(up, TXX9_SIFLCR, TXX9_SIFLCR_RSDE | TXX9_SIFLCR_TSDE);  in serial_txx9_shutdown()
621 	free_irq(up->port.irq, up);  in serial_txx9_shutdown()
628 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_set_termios()  local
639 	cval = sio_in(up, TXX9_SILCR);  in serial_txx9_set_termios()
671 	/* Set up FIFOs */  in serial_txx9_set_termios()
679 	spin_lock_irqsave(&up->port.lock, flags);  in serial_txx9_set_termios()
686 	up->port.read_status_mask = TXX9_SIDISR_UOER |  in serial_txx9_set_termios()
689 		up->port.read_status_mask |= TXX9_SIDISR_UFER | TXX9_SIDISR_UPER;  in serial_txx9_set_termios()
691 		up->port.read_status_mask |= TXX9_SIDISR_UBRK;  in serial_txx9_set_termios()
696 	up->port.ignore_status_mask = 0;  in serial_txx9_set_termios()
698 		up->port.ignore_status_mask |= TXX9_SIDISR_UPER | TXX9_SIDISR_UFER;  in serial_txx9_set_termios()
700 		up->port.ignore_status_mask |= TXX9_SIDISR_UBRK;  in serial_txx9_set_termios()
706 			up->port.ignore_status_mask |= TXX9_SIDISR_UOER;  in serial_txx9_set_termios()
713 		up->port.ignore_status_mask |= TXX9_SIDISR_RDIS;  in serial_txx9_set_termios()
717 	    (up->port.flags & UPF_TXX9_HAVE_CTS_LINE)) {  in serial_txx9_set_termios()
718 		sio_set(up, TXX9_SIFLCR,  in serial_txx9_set_termios()
721 		sio_mask(up, TXX9_SIFLCR,  in serial_txx9_set_termios()
725 	sio_out(up, TXX9_SILCR, cval);  in serial_txx9_set_termios()
726 	sio_quot_set(up, quot);  in serial_txx9_set_termios()
727 	sio_out(up, TXX9_SIFCR, fcr);  in serial_txx9_set_termios()
729 	serial_txx9_set_mctrl(&up->port, up->port.mctrl);  in serial_txx9_set_termios()
730 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_txx9_set_termios()
749 static int serial_txx9_request_resource(struct uart_txx9_port *up)  in serial_txx9_request_resource()  argument
754 	switch (up->port.iotype) {  in serial_txx9_request_resource()
756 		if (!up->port.mapbase)  in serial_txx9_request_resource()
759 		if (!request_mem_region(up->port.mapbase, size, "serial_txx9")) {  in serial_txx9_request_resource()
764 		if (up->port.flags & UPF_IOREMAP) {  in serial_txx9_request_resource()
765 			up->port.membase = ioremap(up->port.mapbase, size);  in serial_txx9_request_resource()
766 			if (!up->port.membase) {  in serial_txx9_request_resource()
767 				release_mem_region(up->port.mapbase, size);  in serial_txx9_request_resource()
774 		if (!request_region(up->port.iobase, size, "serial_txx9"))  in serial_txx9_request_resource()
781 static void serial_txx9_release_resource(struct uart_txx9_port *up)  in serial_txx9_release_resource()  argument
785 	switch (up->port.iotype) {  in serial_txx9_release_resource()
787 		if (!up->port.mapbase)  in serial_txx9_release_resource()
790 		if (up->port.flags & UPF_IOREMAP) {  in serial_txx9_release_resource()
791 			iounmap(up->port.membase);  in serial_txx9_release_resource()
792 			up->port.membase = NULL;  in serial_txx9_release_resource()
795 		release_mem_region(up->port.mapbase, size);  in serial_txx9_release_resource()
799 		release_region(up->port.iobase, size);  in serial_txx9_release_resource()
806 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_release_port()  local
807 	serial_txx9_release_resource(up);  in serial_txx9_release_port()
812 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_request_port()  local
813 	return serial_txx9_request_resource(up);  in serial_txx9_request_port()
818 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_config_port()  local
825 	ret = serial_txx9_request_resource(up);  in serial_txx9_config_port()
829 	up->port.fifosize = TXX9_SIO_TX_FIFO;  in serial_txx9_config_port()
832 	if (up->port.line == up->port.cons->index)  in serial_txx9_config_port()
874 		struct uart_txx9_port *up = &serial_txx9_ports[i];  in serial_txx9_register_ports()  local
876 		up->port.line = i;  in serial_txx9_register_ports()
877 		up->port.ops = &serial_txx9_pops;  in serial_txx9_register_ports()
878 		up->port.dev = dev;  in serial_txx9_register_ports()
879 		if (up->port.iobase || up->port.mapbase)  in serial_txx9_register_ports()
880 			uart_add_one_port(drv, &up->port);  in serial_txx9_register_ports()
888 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_console_putchar()  local
890 	wait_for_xmitr(up);  in serial_txx9_console_putchar()
891 	sio_out(up, TXX9_SITFIFO, ch);  in serial_txx9_console_putchar()
903 	struct uart_txx9_port *up = &serial_txx9_ports[co->index];  in serial_txx9_console_write()  local
909 	ier = sio_in(up, TXX9_SIDICR);  in serial_txx9_console_write()
910 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_console_write()
914 	flcr = sio_in(up, TXX9_SIFLCR);  in serial_txx9_console_write()
915 	if (!(up->port.flags & UPF_CONS_FLOW) && (flcr & TXX9_SIFLCR_TES))  in serial_txx9_console_write()
916 		sio_out(up, TXX9_SIFLCR, flcr & ~TXX9_SIFLCR_TES);  in serial_txx9_console_write()
918 	uart_console_write(&up->port, s, count, serial_txx9_console_putchar);  in serial_txx9_console_write()
924 	wait_for_xmitr(up);  in serial_txx9_console_write()
925 	sio_out(up, TXX9_SIFLCR, flcr);  in serial_txx9_console_write()
926 	sio_out(up, TXX9_SIDICR, ier);  in serial_txx9_console_write()
932 	struct uart_txx9_port *up;  in serial_txx9_console_setup()  local
945 	up = &serial_txx9_ports[co->index];  in serial_txx9_console_setup()
946 	port = &up->port;  in serial_txx9_console_setup()
950 	serial_txx9_initialize(&up->port);  in serial_txx9_console_setup()
1117 		struct uart_txx9_port *up = &serial_txx9_ports[i];  in serial_txx9_remove()  local
1119 		if (up->port.dev == &dev->dev)  in serial_txx9_remove()
1131 		struct uart_txx9_port *up = &serial_txx9_ports[i];  in serial_txx9_suspend()  local
1133 		if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev)  in serial_txx9_suspend()
1134 			uart_suspend_port(&serial_txx9_reg, &up->port);  in serial_txx9_suspend()
1145 		struct uart_txx9_port *up = &serial_txx9_ports[i];  in serial_txx9_resume()  local
1147 		if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev)  in serial_txx9_resume()
1148 			uart_resume_port(&serial_txx9_reg, &up->port);  in serial_txx9_resume()
1204 	struct uart_txx9_port *up = pci_get_drvdata(dev);  in pciserial_txx9_remove_one()  local
1206 	if (up) {  in pciserial_txx9_remove_one()
1207 		serial_txx9_unregister_port(up->port.line);  in pciserial_txx9_remove_one()
1215 	struct uart_txx9_port *up = pci_get_drvdata(dev);  in pciserial_txx9_suspend_one()  local
1217 	if (up)  in pciserial_txx9_suspend_one()
1218 		uart_suspend_port(&serial_txx9_reg, &up->port);  in pciserial_txx9_suspend_one()
1226 	struct uart_txx9_port *up = pci_get_drvdata(dev);  in pciserial_txx9_resume_one()  local
1230 	if (up)  in pciserial_txx9_resume_one()
1231 		uart_resume_port(&serial_txx9_reg, &up->port);  in pciserial_txx9_resume_one()
1310 		struct uart_txx9_port *up = &serial_txx9_ports[i];  in serial_txx9_exit()  local
1311 		if (up->port.iobase || up->port.mapbase)  in serial_txx9_exit()
1312 			uart_remove_one_port(&serial_txx9_reg, &up->port);  in serial_txx9_exit()