173 static inline unsigned int sio_in(struct uart_txx9_port *up, int offset)  in sio_in()  argument
175 	switch (up->port.iotype) {  in sio_in()
177 		return __raw_readl(up->port.membase + offset);  in sio_in()
179 		return inl(up->port.iobase + offset);  in sio_in()
184 sio_out(struct uart_txx9_port *up, int offset, int value)  in sio_out()  argument
186 	switch (up->port.iotype) {  in sio_out()
188 		__raw_writel(value, up->port.membase + offset);  in sio_out()
191 		outl(value, up->port.iobase + offset);  in sio_out()
197 sio_mask(struct uart_txx9_port *up, int offset, unsigned int value)  in sio_mask()  argument
199 	sio_out(up, offset, sio_in(up, offset) & ~value);  in sio_mask()
202 sio_set(struct uart_txx9_port *up, int offset, unsigned int value)  in sio_set()  argument
204 	sio_out(up, offset, sio_in(up, offset) | value);  in sio_set()
208 sio_quot_set(struct uart_txx9_port *up, int quot)  in sio_quot_set()  argument
212 		sio_out(up, TXX9_SIBGR, quot | TXX9_SIBGR_BCLK_T0);  in sio_quot_set()
214 		sio_out(up, TXX9_SIBGR, (quot >> 2) | TXX9_SIBGR_BCLK_T2);  in sio_quot_set()
216 		sio_out(up, TXX9_SIBGR, (quot >> 4) | TXX9_SIBGR_BCLK_T4);  in sio_quot_set()
218 		sio_out(up, TXX9_SIBGR, (quot >> 6) | TXX9_SIBGR_BCLK_T6);  in sio_quot_set()
220 		sio_out(up, TXX9_SIBGR, 0xff | TXX9_SIBGR_BCLK_T6);  in sio_quot_set()
230 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_stop_tx()  local
231 	sio_mask(up, TXX9_SIDICR, TXX9_SIDICR_TIE);  in serial_txx9_stop_tx()
236 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_start_tx()  local
237 	sio_set(up, TXX9_SIDICR, TXX9_SIDICR_TIE);  in serial_txx9_start_tx()
242 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_stop_rx()  local
243 	up->port.read_status_mask &= ~TXX9_SIDISR_RDIS;  in serial_txx9_stop_rx()
248 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_initialize()  local
251 	sio_out(up, TXX9_SIFCR, TXX9_SIFCR_SWRST);  in serial_txx9_initialize()
256 	while ((sio_in(up, TXX9_SIFCR) & TXX9_SIFCR_SWRST) && --tmout)  in serial_txx9_initialize()
259 	sio_set(up, TXX9_SIFCR,  in serial_txx9_initialize()
262 	sio_out(up, TXX9_SILCR,  in serial_txx9_initialize()
264 		((up->port.flags & UPF_TXX9_USE_SCLK) ?  in serial_txx9_initialize()
266 	sio_quot_set(up, uart_get_divisor(port, 9600));  in serial_txx9_initialize()
267 	sio_out(up, TXX9_SIFLCR, TXX9_SIFLCR_RTSTL_MAX /* 15 */);  in serial_txx9_initialize()
268 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_initialize()
272 receive_chars(struct uart_txx9_port *up, unsigned int *status)  in receive_chars()  argument
281 		ch = sio_in(up, TXX9_SIRFIFO);  in receive_chars()
283 		up->port.icount.rx++;  in receive_chars()
287 			up->port.ignore_status_mask & ~TXX9_SIDISR_RFDN_MASK;  in receive_chars()
295 				up->port.icount.brk++;  in receive_chars()
302 				if (uart_handle_break(&up->port))  in receive_chars()
305 				up->port.icount.parity++;  in receive_chars()
307 				up->port.icount.frame++;  in receive_chars()
309 				up->port.icount.overrun++;  in receive_chars()
323 			disr &= up->port.read_status_mask;  in receive_chars()
332 		if (uart_handle_sysrq_char(&up->port, ch))  in receive_chars()
335 		uart_insert_char(&up->port, disr, TXX9_SIDISR_UOER, ch, flag);  in receive_chars()
338 		up->port.ignore_status_mask = next_ignore_status_mask;  in receive_chars()
339 		disr = sio_in(up, TXX9_SIDISR);  in receive_chars()
341 	spin_unlock(&up->port.lock);  in receive_chars()
342 	tty_flip_buffer_push(&up->port.state->port);  in receive_chars()
343 	spin_lock(&up->port.lock);  in receive_chars()
347 static inline void transmit_chars(struct uart_txx9_port *up)  in transmit_chars()  argument
349 	struct circ_buf *xmit = &up->port.state->xmit;  in transmit_chars()
352 	if (up->port.x_char) {  in transmit_chars()
353 		sio_out(up, TXX9_SITFIFO, up->port.x_char);  in transmit_chars()
354 		up->port.icount.tx++;  in transmit_chars()
355 		up->port.x_char = 0;  in transmit_chars()
358 	if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {  in transmit_chars()
359 		serial_txx9_stop_tx(&up->port);  in transmit_chars()
365 		sio_out(up, TXX9_SITFIFO, xmit->buf[xmit->tail]);  in transmit_chars()
367 		up->port.icount.tx++;  in transmit_chars()
373 		uart_write_wakeup(&up->port);  in transmit_chars()
376 		serial_txx9_stop_tx(&up->port);  in transmit_chars()
382 	struct uart_txx9_port *up = dev_id;  in serial_txx9_interrupt()  local
386 		spin_lock(&up->port.lock);  in serial_txx9_interrupt()
387 		status = sio_in(up, TXX9_SIDISR);  in serial_txx9_interrupt()
388 		if (!(sio_in(up, TXX9_SIDICR) & TXX9_SIDICR_TIE))  in serial_txx9_interrupt()
392 			spin_unlock(&up->port.lock);  in serial_txx9_interrupt()
397 			receive_chars(up, &status);  in serial_txx9_interrupt()
399 			transmit_chars(up);  in serial_txx9_interrupt()
401 		sio_mask(up, TXX9_SIDISR,  in serial_txx9_interrupt()
404 		spin_unlock(&up->port.lock);  in serial_txx9_interrupt()
415 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_tx_empty()  local
419 	spin_lock_irqsave(&up->port.lock, flags);  in serial_txx9_tx_empty()
420 	ret = (sio_in(up, TXX9_SICISR) & TXX9_SICISR_TXALS) ? TIOCSER_TEMT : 0;  in serial_txx9_tx_empty()
421 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_txx9_tx_empty()
428 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_get_mctrl()  local
433 	ret |= (sio_in(up, TXX9_SIFLCR) & TXX9_SIFLCR_RTSSC) ? 0 : TIOCM_RTS;  in serial_txx9_get_mctrl()
434 	ret |= (sio_in(up, TXX9_SICISR) & TXX9_SICISR_CTSS) ? 0 : TIOCM_CTS;  in serial_txx9_get_mctrl()
441 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_set_mctrl()  local
444 		sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_RTSSC);  in serial_txx9_set_mctrl()
446 		sio_set(up, TXX9_SIFLCR, TXX9_SIFLCR_RTSSC);  in serial_txx9_set_mctrl()
451 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_break_ctl()  local
454 	spin_lock_irqsave(&up->port.lock, flags);  in serial_txx9_break_ctl()
456 		sio_set(up, TXX9_SIFLCR, TXX9_SIFLCR_TBRK);  in serial_txx9_break_ctl()
458 		sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_TBRK);  in serial_txx9_break_ctl()
459 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_txx9_break_ctl()
466 static void wait_for_xmitr(struct uart_txx9_port *up)  in wait_for_xmitr()  argument
472 	       !(sio_in(up, TXX9_SICISR) & TXX9_SICISR_TXALS))  in wait_for_xmitr()
476 	if (up->port.flags & UPF_CONS_FLOW) {  in wait_for_xmitr()
479 		       (sio_in(up, TXX9_SICISR) & TXX9_SICISR_CTSS))  in wait_for_xmitr()
495 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_get_poll_char()  local
500 	ier = sio_in(up, TXX9_SIDICR);  in serial_txx9_get_poll_char()
501 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_get_poll_char()
503 	while (sio_in(up, TXX9_SIDISR) & TXX9_SIDISR_UVALID)  in serial_txx9_get_poll_char()
506 	c = sio_in(up, TXX9_SIRFIFO);  in serial_txx9_get_poll_char()
512 	sio_mask(up, TXX9_SIDISR, TXX9_SIDISR_RDIS);  in serial_txx9_get_poll_char()
513 	sio_out(up, TXX9_SIDICR, ier);  in serial_txx9_get_poll_char()
521 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_put_poll_char()  local
526 	ier = sio_in(up, TXX9_SIDICR);  in serial_txx9_put_poll_char()
527 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_put_poll_char()
529 	wait_for_xmitr(up);  in serial_txx9_put_poll_char()
533 	sio_out(up, TXX9_SITFIFO, c);  in serial_txx9_put_poll_char()
539 	wait_for_xmitr(up);  in serial_txx9_put_poll_char()
540 	sio_out(up, TXX9_SIDICR, ier);  in serial_txx9_put_poll_char()
547 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_startup()  local
555 	sio_set(up, TXX9_SIFCR,  in serial_txx9_startup()
558 	sio_mask(up, TXX9_SIFCR,  in serial_txx9_startup()
560 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_startup()
565 	sio_out(up, TXX9_SIDISR, 0);  in serial_txx9_startup()
567 	retval = request_irq(up->port.irq, serial_txx9_interrupt,  in serial_txx9_startup()
568 			     IRQF_SHARED, "serial_txx9", up);  in serial_txx9_startup()
575 	spin_lock_irqsave(&up->port.lock, flags);  in serial_txx9_startup()
576 	serial_txx9_set_mctrl(&up->port, up->port.mctrl);  in serial_txx9_startup()
577 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_txx9_startup()
580 	sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_RSDE | TXX9_SIFLCR_TSDE);  in serial_txx9_startup()
585 	sio_set(up, TXX9_SIDICR, TXX9_SIDICR_RIE);  in serial_txx9_startup()
592 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_shutdown()  local
598 	sio_out(up, TXX9_SIDICR, 0);	/* disable all intrs */  in serial_txx9_shutdown()
600 	spin_lock_irqsave(&up->port.lock, flags);  in serial_txx9_shutdown()
601 	serial_txx9_set_mctrl(&up->port, up->port.mctrl);  in serial_txx9_shutdown()
602 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_txx9_shutdown()
607 	sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_TBRK);  in serial_txx9_shutdown()
610 	if (up->port.cons && up->port.line == up->port.cons->index) {  in serial_txx9_shutdown()
611 		free_irq(up->port.irq, up);  in serial_txx9_shutdown()
616 	sio_set(up, TXX9_SIFCR,  in serial_txx9_shutdown()
619 	sio_mask(up, TXX9_SIFCR,  in serial_txx9_shutdown()
623 	sio_set(up, TXX9_SIFLCR, TXX9_SIFLCR_RSDE | TXX9_SIFLCR_TSDE);  in serial_txx9_shutdown()
625 	free_irq(up->port.irq, up);  in serial_txx9_shutdown()
632 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_set_termios()  local
643 	cval = sio_in(up, TXX9_SILCR);  in serial_txx9_set_termios()
683 	spin_lock_irqsave(&up->port.lock, flags);  in serial_txx9_set_termios()
690 	up->port.read_status_mask = TXX9_SIDISR_UOER |  in serial_txx9_set_termios()
693 		up->port.read_status_mask |= TXX9_SIDISR_UFER | TXX9_SIDISR_UPER;  in serial_txx9_set_termios()
695 		up->port.read_status_mask |= TXX9_SIDISR_UBRK;  in serial_txx9_set_termios()
700 	up->port.ignore_status_mask = 0;  in serial_txx9_set_termios()
702 		up->port.ignore_status_mask |= TXX9_SIDISR_UPER | TXX9_SIDISR_UFER;  in serial_txx9_set_termios()
704 		up->port.ignore_status_mask |= TXX9_SIDISR_UBRK;  in serial_txx9_set_termios()
710 			up->port.ignore_status_mask |= TXX9_SIDISR_UOER;  in serial_txx9_set_termios()
717 		up->port.ignore_status_mask |= TXX9_SIDISR_RDIS;  in serial_txx9_set_termios()
721 	    (up->port.flags & UPF_TXX9_HAVE_CTS_LINE)) {  in serial_txx9_set_termios()
722 		sio_set(up, TXX9_SIFLCR,  in serial_txx9_set_termios()
725 		sio_mask(up, TXX9_SIFLCR,  in serial_txx9_set_termios()
729 	sio_out(up, TXX9_SILCR, cval);  in serial_txx9_set_termios()
730 	sio_quot_set(up, quot);  in serial_txx9_set_termios()
731 	sio_out(up, TXX9_SIFCR, fcr);  in serial_txx9_set_termios()
733 	serial_txx9_set_mctrl(&up->port, up->port.mctrl);  in serial_txx9_set_termios()
734 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_txx9_set_termios()
753 static int serial_txx9_request_resource(struct uart_txx9_port *up)  in serial_txx9_request_resource()  argument
758 	switch (up->port.iotype) {  in serial_txx9_request_resource()
760 		if (!up->port.mapbase)  in serial_txx9_request_resource()
763 		if (!request_mem_region(up->port.mapbase, size, "serial_txx9")) {  in serial_txx9_request_resource()
768 		if (up->port.flags & UPF_IOREMAP) {  in serial_txx9_request_resource()
769 			up->port.membase = ioremap(up->port.mapbase, size);  in serial_txx9_request_resource()
770 			if (!up->port.membase) {  in serial_txx9_request_resource()
771 				release_mem_region(up->port.mapbase, size);  in serial_txx9_request_resource()
778 		if (!request_region(up->port.iobase, size, "serial_txx9"))  in serial_txx9_request_resource()
785 static void serial_txx9_release_resource(struct uart_txx9_port *up)  in serial_txx9_release_resource()  argument
789 	switch (up->port.iotype) {  in serial_txx9_release_resource()
791 		if (!up->port.mapbase)  in serial_txx9_release_resource()
794 		if (up->port.flags & UPF_IOREMAP) {  in serial_txx9_release_resource()
795 			iounmap(up->port.membase);  in serial_txx9_release_resource()
796 			up->port.membase = NULL;  in serial_txx9_release_resource()
799 		release_mem_region(up->port.mapbase, size);  in serial_txx9_release_resource()
803 		release_region(up->port.iobase, size);  in serial_txx9_release_resource()
810 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_release_port()  local
811 	serial_txx9_release_resource(up);  in serial_txx9_release_port()
816 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_request_port()  local
817 	return serial_txx9_request_resource(up);  in serial_txx9_request_port()
822 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_config_port()  local
829 	ret = serial_txx9_request_resource(up);  in serial_txx9_config_port()
833 	up->port.fifosize = TXX9_SIO_TX_FIFO;  in serial_txx9_config_port()
836 	if (up->port.line == up->port.cons->index)  in serial_txx9_config_port()
878 		struct uart_txx9_port *up = &serial_txx9_ports[i];  in serial_txx9_register_ports()  local
880 		up->port.line = i;  in serial_txx9_register_ports()
881 		up->port.ops = &serial_txx9_pops;  in serial_txx9_register_ports()
882 		up->port.dev = dev;  in serial_txx9_register_ports()
883 		if (up->port.iobase || up->port.mapbase)  in serial_txx9_register_ports()
884 			uart_add_one_port(drv, &up->port);  in serial_txx9_register_ports()
892 	struct uart_txx9_port *up = to_uart_txx9_port(port);  in serial_txx9_console_putchar()  local
894 	wait_for_xmitr(up);  in serial_txx9_console_putchar()
895 	sio_out(up, TXX9_SITFIFO, ch);  in serial_txx9_console_putchar()
907 	struct uart_txx9_port *up = &serial_txx9_ports[co->index];  in serial_txx9_console_write()  local
913 	ier = sio_in(up, TXX9_SIDICR);  in serial_txx9_console_write()
914 	sio_out(up, TXX9_SIDICR, 0);  in serial_txx9_console_write()
918 	flcr = sio_in(up, TXX9_SIFLCR);  in serial_txx9_console_write()
919 	if (!(up->port.flags & UPF_CONS_FLOW) && (flcr & TXX9_SIFLCR_TES))  in serial_txx9_console_write()
920 		sio_out(up, TXX9_SIFLCR, flcr & ~TXX9_SIFLCR_TES);  in serial_txx9_console_write()
922 	uart_console_write(&up->port, s, count, serial_txx9_console_putchar);  in serial_txx9_console_write()
928 	wait_for_xmitr(up);  in serial_txx9_console_write()
929 	sio_out(up, TXX9_SIFLCR, flcr);  in serial_txx9_console_write()
930 	sio_out(up, TXX9_SIDICR, ier);  in serial_txx9_console_write()
936 	struct uart_txx9_port *up;  in serial_txx9_console_setup()  local
949 	up = &serial_txx9_ports[co->index];  in serial_txx9_console_setup()
950 	port = &up->port;  in serial_txx9_console_setup()
954 	serial_txx9_initialize(&up->port);  in serial_txx9_console_setup()
1121 		struct uart_txx9_port *up = &serial_txx9_ports[i];  in serial_txx9_remove()  local
1123 		if (up->port.dev == &dev->dev)  in serial_txx9_remove()
1135 		struct uart_txx9_port *up = &serial_txx9_ports[i];  in serial_txx9_suspend()  local
1137 		if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev)  in serial_txx9_suspend()
1138 			uart_suspend_port(&serial_txx9_reg, &up->port);  in serial_txx9_suspend()
1149 		struct uart_txx9_port *up = &serial_txx9_ports[i];  in serial_txx9_resume()  local
1151 		if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev)  in serial_txx9_resume()
1152 			uart_resume_port(&serial_txx9_reg, &up->port);  in serial_txx9_resume()
1208 	struct uart_txx9_port *up = pci_get_drvdata(dev);  in pciserial_txx9_remove_one()  local
1210 	if (up) {  in pciserial_txx9_remove_one()
1211 		serial_txx9_unregister_port(up->port.line);  in pciserial_txx9_remove_one()
1219 	struct uart_txx9_port *up = pci_get_drvdata(dev);  in pciserial_txx9_suspend_one()  local
1221 	if (up)  in pciserial_txx9_suspend_one()
1222 		uart_suspend_port(&serial_txx9_reg, &up->port);  in pciserial_txx9_suspend_one()
1230 	struct uart_txx9_port *up = pci_get_drvdata(dev);  in pciserial_txx9_resume_one()  local
1234 	if (up)  in pciserial_txx9_resume_one()
1235 		uart_resume_port(&serial_txx9_reg, &up->port);  in pciserial_txx9_resume_one()
1314 		struct uart_txx9_port *up = &serial_txx9_ports[i];  in serial_txx9_exit()  local
1315 		if (up->port.iobase || up->port.mapbase)  in serial_txx9_exit()
1316 			uart_remove_one_port(&serial_txx9_reg, &up->port);  in serial_txx9_exit()