80 	struct dz_port		dport[DZ_NB_PORT];  member
102 static u16 dz_in(struct dz_port *dport, unsigned offset)  in dz_in()  argument
104 	void __iomem *addr = dport->port.membase + offset;  in dz_in()
109 static void dz_out(struct dz_port *dport, unsigned offset, u16 value)  in dz_out()  argument
111 	void __iomem *addr = dport->port.membase + offset;  in dz_out()
128 	struct dz_port *dport = to_dport(uport);  in dz_stop_tx()  local
129 	u16 tmp, mask = 1 << dport->port.line;  in dz_stop_tx()
131 	tmp = dz_in(dport, DZ_TCR);	/* read the TX flag */  in dz_stop_tx()
133 	dz_out(dport, DZ_TCR, tmp);  in dz_stop_tx()
138 	struct dz_port *dport = to_dport(uport);  in dz_start_tx()  local
139 	u16 tmp, mask = 1 << dport->port.line;  in dz_start_tx()
141 	tmp = dz_in(dport, DZ_TCR);	/* read the TX flag */  in dz_start_tx()
143 	dz_out(dport, DZ_TCR, tmp);  in dz_start_tx()
148 	struct dz_port *dport = to_dport(uport);  in dz_stop_rx()  local
150 	dport->cflag &= ~DZ_RXENAB;  in dz_stop_rx()
151 	dz_out(dport, DZ_LPR, dport->cflag);  in dz_stop_rx()
184 	struct dz_port *dport = &mux->dport[0];  in dz_receive_chars()  local
191 	while ((status = dz_in(dport, DZ_RBUF)) & DZ_DVAL) {  in dz_receive_chars()
192 		dport = &mux->dport[LINE(status)];  in dz_receive_chars()
193 		uport = &dport->port;  in dz_receive_chars()
245 			tty_flip_buffer_push(&mux->dport[i].port.state->port);  in dz_receive_chars()
257 	struct dz_port *dport = &mux->dport[0];  in dz_transmit_chars()  local
262 	status = dz_in(dport, DZ_CSR);  in dz_transmit_chars()
263 	dport = &mux->dport[LINE(status)];  in dz_transmit_chars()
264 	xmit = &dport->port.state->xmit;  in dz_transmit_chars()
266 	if (dport->port.x_char) {		/* XON/XOFF chars */  in dz_transmit_chars()
267 		dz_out(dport, DZ_TDR, dport->port.x_char);  in dz_transmit_chars()
268 		dport->port.icount.tx++;  in dz_transmit_chars()
269 		dport->port.x_char = 0;  in dz_transmit_chars()
273 	if (uart_circ_empty(xmit) || uart_tx_stopped(&dport->port)) {  in dz_transmit_chars()
274 		spin_lock(&dport->port.lock);  in dz_transmit_chars()
275 		dz_stop_tx(&dport->port);  in dz_transmit_chars()
276 		spin_unlock(&dport->port.lock);  in dz_transmit_chars()
286 	dz_out(dport, DZ_TDR, tmp);  in dz_transmit_chars()
287 	dport->port.icount.tx++;  in dz_transmit_chars()
290 		uart_write_wakeup(&dport->port);  in dz_transmit_chars()
294 		spin_lock(&dport->port.lock);  in dz_transmit_chars()
295 		dz_stop_tx(&dport->port);  in dz_transmit_chars()
296 		spin_unlock(&dport->port.lock);  in dz_transmit_chars()
308 static inline void check_modem_status(struct dz_port *dport)  in check_modem_status()  argument
318 	if (dport->port.line != DZ_MODEM)  in check_modem_status()
321 	status = dz_in(dport, DZ_MSR);  in check_modem_status()
325 		dport->port.icount.dsr++;  in check_modem_status()
339 	struct dz_port *dport = &mux->dport[0];  in dz_interrupt()  local
343 	status = dz_in(dport, DZ_CSR);  in dz_interrupt()
365 	struct dz_port *dport = to_dport(uport);  in dz_get_mctrl()  local
368 	if (dport->port.line == DZ_MODEM) {  in dz_get_mctrl()
369 		if (dz_in(dport, DZ_MSR) & DZ_MODEM_DSR)  in dz_get_mctrl()
381 	struct dz_port *dport = to_dport(uport);  in dz_set_mctrl()  local
384 	if (dport->port.line == DZ_MODEM) {  in dz_set_mctrl()
385 		tmp = dz_in(dport, DZ_TCR);  in dz_set_mctrl()
390 		dz_out(dport, DZ_TCR, tmp);  in dz_set_mctrl()
403 	struct dz_port *dport = to_dport(uport);  in dz_startup()  local
404 	struct dz_mux *mux = dport->mux;  in dz_startup()
414 	ret = request_irq(dport->port.irq, dz_interrupt,  in dz_startup()
418 		printk(KERN_ERR "dz: Cannot get IRQ %d!\n", dport->port.irq);  in dz_startup()
422 	spin_lock_irqsave(&dport->port.lock, flags);  in dz_startup()
425 	tmp = dz_in(dport, DZ_CSR);  in dz_startup()
427 	dz_out(dport, DZ_CSR, tmp);  in dz_startup()
429 	spin_unlock_irqrestore(&dport->port.lock, flags);  in dz_startup()
444 	struct dz_port *dport = to_dport(uport);  in dz_shutdown()  local
445 	struct dz_mux *mux = dport->mux;  in dz_shutdown()
450 	spin_lock_irqsave(&dport->port.lock, flags);  in dz_shutdown()
451 	dz_stop_tx(&dport->port);  in dz_shutdown()
452 	spin_unlock_irqrestore(&dport->port.lock, flags);  in dz_shutdown()
457 		tmp = dz_in(dport, DZ_CSR);  in dz_shutdown()
459 		dz_out(dport, DZ_CSR, tmp);  in dz_shutdown()
461 		free_irq(dport->port.irq, mux);  in dz_shutdown()
479 	struct dz_port *dport = to_dport(uport);  in dz_tx_empty()  local
480 	unsigned short tmp, mask = 1 << dport->port.line;  in dz_tx_empty()
482 	tmp = dz_in(dport, DZ_TCR);  in dz_tx_empty()
494 	struct dz_port *dport = to_dport(uport);  in dz_break_ctl()  local
496 	unsigned short tmp, mask = 1 << dport->port.line;  in dz_break_ctl()
499 	tmp = dz_in(dport, DZ_TCR);  in dz_break_ctl()
504 	dz_out(dport, DZ_TCR, tmp);  in dz_break_ctl()
547 static void dz_reset(struct dz_port *dport)  in dz_reset()  argument
549 	struct dz_mux *mux = dport->mux;  in dz_reset()
554 	dz_out(dport, DZ_CSR, DZ_CLR);  in dz_reset()
555 	while (dz_in(dport, DZ_CSR) & DZ_CLR);  in dz_reset()
559 	dz_out(dport, DZ_CSR, DZ_MSE);  in dz_reset()
567 	struct dz_port *dport = to_dport(uport);  in dz_set_termios()  local
572 	cflag = dport->port.line;  in dz_set_termios()
612 	spin_lock_irqsave(&dport->port.lock, flags);  in dz_set_termios()
616 	dz_out(dport, DZ_LPR, cflag);  in dz_set_termios()
617 	dport->cflag = cflag;  in dz_set_termios()
620 	dport->port.read_status_mask = DZ_OERR;  in dz_set_termios()
622 		dport->port.read_status_mask |= DZ_FERR | DZ_PERR;  in dz_set_termios()
624 		dport->port.read_status_mask |= DZ_BREAK;  in dz_set_termios()
629 		dport->port.ignore_status_mask |= DZ_OERR;  in dz_set_termios()
631 		dport->port.ignore_status_mask |= DZ_FERR | DZ_PERR;  in dz_set_termios()
633 		dport->port.ignore_status_mask |= DZ_BREAK;  in dz_set_termios()
635 	spin_unlock_irqrestore(&dport->port.lock, flags);  in dz_set_termios()
646 	struct dz_port *dport = to_dport(uport);  in dz_pm()  local
649 	spin_lock_irqsave(&dport->port.lock, flags);  in dz_pm()
651 		dz_start_tx(&dport->port);  in dz_pm()
653 		dz_stop_tx(&dport->port);  in dz_pm()
654 	spin_unlock_irqrestore(&dport->port.lock, flags);  in dz_pm()
716 	struct dz_port *dport = to_dport(uport);  in dz_config_port()  local
724 		dz_reset(dport);  in dz_config_port()
777 		struct dz_port *dport = &dz_mux.dport[line];  in dz_init_ports()  local
778 		struct uart_port *uport = &dport->port;  in dz_init_ports()
780 		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()