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 	tport = &dport->port.state->port;  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_tx_stopped(&dport->port) ||  in dz_transmit_chars()
271 			!uart_fifo_get(&dport->port, &tmp)) {  in dz_transmit_chars()
272 		uart_port_lock(&dport->port);  in dz_transmit_chars()
273 		dz_stop_tx(&dport->port);  in dz_transmit_chars()
274 		uart_port_unlock(&dport->port);  in dz_transmit_chars()
282 	dz_out(dport, DZ_TDR, tmp);  in dz_transmit_chars()
285 		uart_write_wakeup(&dport->port);  in dz_transmit_chars()
289 		uart_port_lock(&dport->port);  in dz_transmit_chars()
290 		dz_stop_tx(&dport->port);  in dz_transmit_chars()
291 		uart_port_unlock(&dport->port);  in dz_transmit_chars()
303 static inline void check_modem_status(struct dz_port *dport)  in check_modem_status()  argument
313 	if (dport->port.line != DZ_MODEM)  in check_modem_status()
316 	status = dz_in(dport, DZ_MSR);  in check_modem_status()
320 		dport->port.icount.dsr++;  in check_modem_status()
334 	struct dz_port *dport = &mux->dport[0];  in dz_interrupt()  local
338 	status = dz_in(dport, DZ_CSR);  in dz_interrupt()
360 	struct dz_port *dport = to_dport(uport);  in dz_get_mctrl()  local
363 	if (dport->port.line == DZ_MODEM) {  in dz_get_mctrl()
364 		if (dz_in(dport, DZ_MSR) & DZ_MODEM_DSR)  in dz_get_mctrl()
376 	struct dz_port *dport = to_dport(uport);  in dz_set_mctrl()  local
379 	if (dport->port.line == DZ_MODEM) {  in dz_set_mctrl()
380 		tmp = dz_in(dport, DZ_TCR);  in dz_set_mctrl()
385 		dz_out(dport, DZ_TCR, tmp);  in dz_set_mctrl()
398 	struct dz_port *dport = to_dport(uport);  in dz_startup()  local
399 	struct dz_mux *mux = dport->mux;  in dz_startup()
409 	ret = request_irq(dport->port.irq, dz_interrupt,  in dz_startup()
413 		printk(KERN_ERR "dz: Cannot get IRQ %d!\n", dport->port.irq);  in dz_startup()
417 	uart_port_lock_irqsave(&dport->port, &flags);  in dz_startup()
420 	tmp = dz_in(dport, DZ_CSR);  in dz_startup()
422 	dz_out(dport, DZ_CSR, tmp);  in dz_startup()
424 	uart_port_unlock_irqrestore(&dport->port, flags);  in dz_startup()
439 	struct dz_port *dport = to_dport(uport);  in dz_shutdown()  local
440 	struct dz_mux *mux = dport->mux;  in dz_shutdown()
445 	uart_port_lock_irqsave(&dport->port, &flags);  in dz_shutdown()
446 	dz_stop_tx(&dport->port);  in dz_shutdown()
447 	uart_port_unlock_irqrestore(&dport->port, flags);  in dz_shutdown()
452 		tmp = dz_in(dport, DZ_CSR);  in dz_shutdown()
454 		dz_out(dport, DZ_CSR, tmp);  in dz_shutdown()
456 		free_irq(dport->port.irq, mux);  in dz_shutdown()
474 	struct dz_port *dport = to_dport(uport);  in dz_tx_empty()  local
475 	unsigned short tmp, mask = 1 << dport->port.line;  in dz_tx_empty()
477 	tmp = dz_in(dport, DZ_TCR);  in dz_tx_empty()
489 	struct dz_port *dport = to_dport(uport);  in dz_break_ctl()  local
491 	unsigned short tmp, mask = 1 << dport->port.line;  in dz_break_ctl()
494 	tmp = dz_in(dport, DZ_TCR);  in dz_break_ctl()
499 	dz_out(dport, DZ_TCR, tmp);  in dz_break_ctl()
542 static void dz_reset(struct dz_port *dport)  in dz_reset()  argument
544 	struct dz_mux *mux = dport->mux;  in dz_reset()
549 	dz_out(dport, DZ_CSR, DZ_CLR);  in dz_reset()
550 	while (dz_in(dport, DZ_CSR) & DZ_CLR);  in dz_reset()
554 	dz_out(dport, DZ_CSR, DZ_MSE);  in dz_reset()
562 	struct dz_port *dport = to_dport(uport);  in dz_set_termios()  local
567 	cflag = dport->port.line;  in dz_set_termios()
610 	uart_port_lock_irqsave(&dport->port, &flags);  in dz_set_termios()
614 	dz_out(dport, DZ_LPR, cflag);  in dz_set_termios()
615 	dport->cflag = cflag;  in dz_set_termios()
618 	dport->port.read_status_mask = DZ_OERR;  in dz_set_termios()
620 		dport->port.read_status_mask |= DZ_FERR | DZ_PERR;  in dz_set_termios()
622 		dport->port.read_status_mask |= DZ_BREAK;  in dz_set_termios()
627 		dport->port.ignore_status_mask |= DZ_OERR;  in dz_set_termios()
629 		dport->port.ignore_status_mask |= DZ_FERR | DZ_PERR;  in dz_set_termios()
631 		dport->port.ignore_status_mask |= DZ_BREAK;  in dz_set_termios()
633 	uart_port_unlock_irqrestore(&dport->port, flags);  in dz_set_termios()
644 	struct dz_port *dport = to_dport(uport);  in dz_pm()  local
647 	uart_port_lock_irqsave(&dport->port, &flags);  in dz_pm()
649 		dz_start_tx(&dport->port);  in dz_pm()
651 		dz_stop_tx(&dport->port);  in dz_pm()
652 	uart_port_unlock_irqrestore(&dport->port, flags);  in dz_pm()
714 	struct dz_port *dport = to_dport(uport);  in dz_config_port()  local
722 		dz_reset(dport);  in dz_config_port()
775 		struct dz_port *dport = &dz_mux.dport[line];  in dz_init_ports()  local
776 		struct uart_port *uport = &dport->port;  in dz_init_ports()
778 		dport->mux	= &dz_mux;  in dz_init_ports()
808 	struct dz_port *dport = to_dport(uport);  in dz_console_putchar()  local
813 	uart_port_lock_irqsave(&dport->port, &flags);  in dz_console_putchar()
814 	csr = dz_in(dport, DZ_CSR);  in dz_console_putchar()
815 	dz_out(dport, DZ_CSR, csr & ~DZ_TIE);  in dz_console_putchar()
816 	tcr = dz_in(dport, DZ_TCR);  in dz_console_putchar()
817 	tcr |= 1 << dport->port.line;  in dz_console_putchar()
819 	dz_out(dport, DZ_TCR, mask);  in dz_console_putchar()
821 	uart_port_unlock_irqrestore(&dport->port, flags);  in dz_console_putchar()
824 		trdy = dz_in(dport, DZ_CSR);  in dz_console_putchar()
828 		if (trdy == dport->port.line)  in dz_console_putchar()
831 		dz_out(dport, DZ_TCR, mask);  in dz_console_putchar()
837 		dz_out(dport, DZ_TDR, ch);  in dz_console_putchar()
839 	dz_out(dport, DZ_TCR, tcr);  in dz_console_putchar()
840 	dz_out(dport, DZ_CSR, csr);  in dz_console_putchar()
855 	struct dz_port *dport = &dz_mux.dport[co->index];  in dz_console_print()  local
859 	uart_console_write(&dport->port, str, count, dz_console_putchar);  in dz_console_print()
864 	struct dz_port *dport = &dz_mux.dport[co->index];  in dz_console_setup()  local
865 	struct uart_port *uport = &dport->port;  in dz_console_setup()
876 	spin_lock_init(&dport->port.lock);	/* For dz_pm().  */  in dz_console_setup()
878 	dz_reset(dport);  in dz_console_setup()
884 	return uart_set_options(&dport->port, co, baud, parity, bits, flow);  in dz_console_setup()
941 		uart_add_one_port(&dz_reg, &dz_mux.dport[i].port);  in dz_init()