77 	struct dz_port		dport[DZ_NB_PORT];  member
99 static u16 dz_in(struct dz_port *dport, unsigned offset)  in dz_in()  argument
101 	void __iomem *addr = dport->port.membase + offset;  in dz_in()
106 static void dz_out(struct dz_port *dport, unsigned offset, u16 value)  in dz_out()  argument
108 	void __iomem *addr = dport->port.membase + offset;  in dz_out()
125 	struct dz_port *dport = to_dport(uport);  in dz_stop_tx()  local
126 	u16 tmp, mask = 1 << dport->port.line;  in dz_stop_tx()
128 	tmp = dz_in(dport, DZ_TCR);	/* read the TX flag */  in dz_stop_tx()
130 	dz_out(dport, DZ_TCR, tmp);  in dz_stop_tx()
135 	struct dz_port *dport = to_dport(uport);  in dz_start_tx()  local
136 	u16 tmp, mask = 1 << dport->port.line;  in dz_start_tx()
138 	tmp = dz_in(dport, DZ_TCR);	/* read the TX flag */  in dz_start_tx()
140 	dz_out(dport, DZ_TCR, tmp);  in dz_start_tx()
145 	struct dz_port *dport = to_dport(uport);  in dz_stop_rx()  local
147 	dport->cflag &= ~DZ_RXENAB;  in dz_stop_rx()
148 	dz_out(dport, DZ_LPR, dport->cflag);  in dz_stop_rx()
181 	struct dz_port *dport = &mux->dport[0];  in dz_receive_chars()  local
188 	while ((status = dz_in(dport, DZ_RBUF)) & DZ_DVAL) {  in dz_receive_chars()
189 		dport = &mux->dport[LINE(status)];  in dz_receive_chars()
190 		uport = &dport->port;  in dz_receive_chars()
242 			tty_flip_buffer_push(&mux->dport[i].port.state->port);  in dz_receive_chars()
254 	struct dz_port *dport = &mux->dport[0];  in dz_transmit_chars()  local
259 	status = dz_in(dport, DZ_CSR);  in dz_transmit_chars()
260 	dport = &mux->dport[LINE(status)];  in dz_transmit_chars()
261 	xmit = &dport->port.state->xmit;  in dz_transmit_chars()
263 	if (dport->port.x_char) {		/* XON/XOFF chars */  in dz_transmit_chars()
264 		dz_out(dport, DZ_TDR, dport->port.x_char);  in dz_transmit_chars()
265 		dport->port.icount.tx++;  in dz_transmit_chars()
266 		dport->port.x_char = 0;  in dz_transmit_chars()
270 	if (uart_circ_empty(xmit) || uart_tx_stopped(&dport->port)) {  in dz_transmit_chars()
271 		spin_lock(&dport->port.lock);  in dz_transmit_chars()
272 		dz_stop_tx(&dport->port);  in dz_transmit_chars()
273 		spin_unlock(&dport->port.lock);  in dz_transmit_chars()
282 	dz_out(dport, DZ_TDR, tmp);  in dz_transmit_chars()
283 	uart_xmit_advance(&dport->port, 1);  in dz_transmit_chars()
286 		uart_write_wakeup(&dport->port);  in dz_transmit_chars()
290 		spin_lock(&dport->port.lock);  in dz_transmit_chars()
291 		dz_stop_tx(&dport->port);  in dz_transmit_chars()
292 		spin_unlock(&dport->port.lock);  in dz_transmit_chars()
304 static inline void check_modem_status(struct dz_port *dport)  in check_modem_status()  argument
314 	if (dport->port.line != DZ_MODEM)  in check_modem_status()
317 	status = dz_in(dport, DZ_MSR);  in check_modem_status()
321 		dport->port.icount.dsr++;  in check_modem_status()
335 	struct dz_port *dport = &mux->dport[0];  in dz_interrupt()  local
339 	status = dz_in(dport, DZ_CSR);  in dz_interrupt()
361 	struct dz_port *dport = to_dport(uport);  in dz_get_mctrl()  local
364 	if (dport->port.line == DZ_MODEM) {  in dz_get_mctrl()
365 		if (dz_in(dport, DZ_MSR) & DZ_MODEM_DSR)  in dz_get_mctrl()
377 	struct dz_port *dport = to_dport(uport);  in dz_set_mctrl()  local
380 	if (dport->port.line == DZ_MODEM) {  in dz_set_mctrl()
381 		tmp = dz_in(dport, DZ_TCR);  in dz_set_mctrl()
386 		dz_out(dport, DZ_TCR, tmp);  in dz_set_mctrl()
399 	struct dz_port *dport = to_dport(uport);  in dz_startup()  local
400 	struct dz_mux *mux = dport->mux;  in dz_startup()
410 	ret = request_irq(dport->port.irq, dz_interrupt,  in dz_startup()
414 		printk(KERN_ERR "dz: Cannot get IRQ %d!\n", dport->port.irq);  in dz_startup()
418 	spin_lock_irqsave(&dport->port.lock, flags);  in dz_startup()
421 	tmp = dz_in(dport, DZ_CSR);  in dz_startup()
423 	dz_out(dport, DZ_CSR, tmp);  in dz_startup()
425 	spin_unlock_irqrestore(&dport->port.lock, flags);  in dz_startup()
440 	struct dz_port *dport = to_dport(uport);  in dz_shutdown()  local
441 	struct dz_mux *mux = dport->mux;  in dz_shutdown()
446 	spin_lock_irqsave(&dport->port.lock, flags);  in dz_shutdown()
447 	dz_stop_tx(&dport->port);  in dz_shutdown()
448 	spin_unlock_irqrestore(&dport->port.lock, flags);  in dz_shutdown()
453 		tmp = dz_in(dport, DZ_CSR);  in dz_shutdown()
455 		dz_out(dport, DZ_CSR, tmp);  in dz_shutdown()
457 		free_irq(dport->port.irq, mux);  in dz_shutdown()
475 	struct dz_port *dport = to_dport(uport);  in dz_tx_empty()  local
476 	unsigned short tmp, mask = 1 << dport->port.line;  in dz_tx_empty()
478 	tmp = dz_in(dport, DZ_TCR);  in dz_tx_empty()
490 	struct dz_port *dport = to_dport(uport);  in dz_break_ctl()  local
492 	unsigned short tmp, mask = 1 << dport->port.line;  in dz_break_ctl()
495 	tmp = dz_in(dport, DZ_TCR);  in dz_break_ctl()
500 	dz_out(dport, DZ_TCR, tmp);  in dz_break_ctl()
543 static void dz_reset(struct dz_port *dport)  in dz_reset()  argument
545 	struct dz_mux *mux = dport->mux;  in dz_reset()
550 	dz_out(dport, DZ_CSR, DZ_CLR);  in dz_reset()
551 	while (dz_in(dport, DZ_CSR) & DZ_CLR);  in dz_reset()
555 	dz_out(dport, DZ_CSR, DZ_MSE);  in dz_reset()
563 	struct dz_port *dport = to_dport(uport);  in dz_set_termios()  local
568 	cflag = dport->port.line;  in dz_set_termios()
611 	spin_lock_irqsave(&dport->port.lock, flags);  in dz_set_termios()
615 	dz_out(dport, DZ_LPR, cflag);  in dz_set_termios()
616 	dport->cflag = cflag;  in dz_set_termios()
619 	dport->port.read_status_mask = DZ_OERR;  in dz_set_termios()
621 		dport->port.read_status_mask |= DZ_FERR | DZ_PERR;  in dz_set_termios()
623 		dport->port.read_status_mask |= DZ_BREAK;  in dz_set_termios()
628 		dport->port.ignore_status_mask |= DZ_OERR;  in dz_set_termios()
630 		dport->port.ignore_status_mask |= DZ_FERR | DZ_PERR;  in dz_set_termios()
632 		dport->port.ignore_status_mask |= DZ_BREAK;  in dz_set_termios()
634 	spin_unlock_irqrestore(&dport->port.lock, flags);  in dz_set_termios()
645 	struct dz_port *dport = to_dport(uport);  in dz_pm()  local
648 	spin_lock_irqsave(&dport->port.lock, flags);  in dz_pm()
650 		dz_start_tx(&dport->port);  in dz_pm()
652 		dz_stop_tx(&dport->port);  in dz_pm()
653 	spin_unlock_irqrestore(&dport->port.lock, flags);  in dz_pm()
715 	struct dz_port *dport = to_dport(uport);  in dz_config_port()  local
723 		dz_reset(dport);  in dz_config_port()
776 		struct dz_port *dport = &dz_mux.dport[line];  in dz_init_ports()  local
777 		struct uart_port *uport = &dport->port;  in dz_init_ports()
779 		dport->mux	= &dz_mux;  in dz_init_ports()
809 	struct dz_port *dport = to_dport(uport);  in dz_console_putchar()  local
814 	spin_lock_irqsave(&dport->port.lock, flags);  in dz_console_putchar()
815 	csr = dz_in(dport, DZ_CSR);  in dz_console_putchar()
816 	dz_out(dport, DZ_CSR, csr & ~DZ_TIE);  in dz_console_putchar()
817 	tcr = dz_in(dport, DZ_TCR);  in dz_console_putchar()
818 	tcr |= 1 << dport->port.line;  in dz_console_putchar()
820 	dz_out(dport, DZ_TCR, mask);  in dz_console_putchar()
822 	spin_unlock_irqrestore(&dport->port.lock, flags);  in dz_console_putchar()
825 		trdy = dz_in(dport, DZ_CSR);  in dz_console_putchar()
829 		if (trdy == dport->port.line)  in dz_console_putchar()
832 		dz_out(dport, DZ_TCR, mask);  in dz_console_putchar()
838 		dz_out(dport, DZ_TDR, ch);  in dz_console_putchar()
840 	dz_out(dport, DZ_TCR, tcr);  in dz_console_putchar()
841 	dz_out(dport, DZ_CSR, csr);  in dz_console_putchar()
856 	struct dz_port *dport = &dz_mux.dport[co->index];  in dz_console_print()  local
860 	uart_console_write(&dport->port, str, count, dz_console_putchar);  in dz_console_print()
865 	struct dz_port *dport = &dz_mux.dport[co->index];  in dz_console_setup()  local
866 	struct uart_port *uport = &dport->port;  in dz_console_setup()
877 	spin_lock_init(&dport->port.lock);	/* For dz_pm().  */  in dz_console_setup()
879 	dz_reset(dport);  in dz_console_setup()
885 	return uart_set_options(&dport->port, co, baud, parity, bits, flow);  in dz_console_setup()
942 		uart_add_one_port(&dz_reg, &dz_mux.dport[i].port);  in dz_init()