104 #define pmz_debug(fmt, arg...)	pr_debug("ttyPZ%d: " fmt, uap->port.line, ## arg)
105 #define pmz_error(fmt, arg...)	pr_err("ttyPZ%d: " fmt, uap->port.line, ## arg)
106 #define pmz_info(fmt, arg...)	pr_info("ttyPZ%d: " fmt, uap->port.line, ## arg)
234 	struct tty_port *port;  in pmz_receive_chars()  local
239 	if (uap->port.state == NULL) {  in pmz_receive_chars()
244 	port = &uap->port.state->port;  in pmz_receive_chars()
267 			uap->port.sysrq = jiffies + HZ*5;  in pmz_receive_chars()
271 		if (uap->port.sysrq) {  in pmz_receive_chars()
273 			spin_unlock(&uap->port.lock);  in pmz_receive_chars()
274 			swallow = uart_handle_sysrq_char(&uap->port, ch);  in pmz_receive_chars()
275 			spin_lock(&uap->port.lock);  in pmz_receive_chars()
286 		uap->port.icount.rx++;  in pmz_receive_chars()
293 				uap->port.icount.brk++;  in pmz_receive_chars()
294 				if (uart_handle_break(&uap->port))  in pmz_receive_chars()
298 				uap->port.icount.parity++;  in pmz_receive_chars()
300 				uap->port.icount.frame++;  in pmz_receive_chars()
302 				uap->port.icount.overrun++;  in pmz_receive_chars()
303 			r1 &= uap->port.read_status_mask;  in pmz_receive_chars()
312 		if (uap->port.ignore_status_mask == 0xff ||  in pmz_receive_chars()
313 		    (r1 & uap->port.ignore_status_mask) == 0) {  in pmz_receive_chars()
314 			tty_insert_flip_char(port, ch, flag);  in pmz_receive_chars()
317 			tty_insert_flip_char(port, 0, TTY_OVERRUN);  in pmz_receive_chars()
350 			uap->port.icount.dsr++;  in pmz_status_handle()
358 			uart_handle_dcd_change(&uap->port,  in pmz_status_handle()
361 			uart_handle_cts_change(&uap->port,  in pmz_status_handle()
364 		wake_up_interruptible(&uap->port.state->port.delta_msr_wait);  in pmz_status_handle()
415 	if (uap->port.x_char) {  in pmz_transmit_chars()
417 		write_zsdata(uap, uap->port.x_char);  in pmz_transmit_chars()
419 		uap->port.icount.tx++;  in pmz_transmit_chars()
420 		uap->port.x_char = 0;  in pmz_transmit_chars()
424 	if (uap->port.state == NULL)  in pmz_transmit_chars()
426 	xmit = &uap->port.state->xmit;  in pmz_transmit_chars()
428 		uart_write_wakeup(&uap->port);  in pmz_transmit_chars()
431 	if (uart_tx_stopped(&uap->port))  in pmz_transmit_chars()
439 	uap->port.icount.tx++;  in pmz_transmit_chars()
442 		uart_write_wakeup(&uap->port);  in pmz_transmit_chars()
464 	spin_lock(&uap_a->port.lock);  in pmz_interrupt()
488 	spin_unlock(&uap_a->port.lock);  in pmz_interrupt()
490 		tty_flip_buffer_push(&uap->port.state->port);  in pmz_interrupt()
495 	spin_lock(&uap_b->port.lock);  in pmz_interrupt()
513 	spin_unlock(&uap_b->port.lock);  in pmz_interrupt()
515 		tty_flip_buffer_push(&uap->port.state->port);  in pmz_interrupt()
529 	spin_lock_irqsave(&uap->port.lock, flags);  in pmz_peek_status()
531 	spin_unlock_irqrestore(&uap->port.lock, flags);  in pmz_peek_status()
540 static unsigned int pmz_tx_empty(struct uart_port *port)  in pmz_tx_empty()  argument
544 	status = pmz_peek_status(to_pmz(port));  in pmz_tx_empty()
556 static void pmz_set_mctrl(struct uart_port *port, unsigned int mctrl)  in pmz_set_mctrl()  argument
558 	struct uart_pmac_port *uap = to_pmz(port);  in pmz_set_mctrl()
596 static unsigned int pmz_get_mctrl(struct uart_port *port)  in pmz_get_mctrl()  argument
598 	struct uart_pmac_port *uap = to_pmz(port);  in pmz_get_mctrl()
620 static void pmz_stop_tx(struct uart_port *port)  in pmz_stop_tx()  argument
622 	to_pmz(port)->flags |= PMACZILOG_FLAG_TX_STOPPED;  in pmz_stop_tx()
629 static void pmz_start_tx(struct uart_port *port)  in pmz_start_tx()  argument
631 	struct uart_pmac_port *uap = to_pmz(port);  in pmz_start_tx()
648 	if (port->x_char) {  in pmz_start_tx()
649 		write_zsdata(uap, port->x_char);  in pmz_start_tx()
651 		port->icount.tx++;  in pmz_start_tx()
652 		port->x_char = 0;  in pmz_start_tx()
654 		struct circ_buf *xmit = &port->state->xmit;  in pmz_start_tx()
661 		port->icount.tx++;  in pmz_start_tx()
664 			uart_write_wakeup(&uap->port);  in pmz_start_tx()
676 static void pmz_stop_rx(struct uart_port *port)  in pmz_stop_rx()  argument
678 	struct uart_pmac_port *uap = to_pmz(port);  in pmz_stop_rx()
693 static void pmz_enable_ms(struct uart_port *port)  in pmz_enable_ms()  argument
695 	struct uart_pmac_port *uap = to_pmz(port);  in pmz_enable_ms()
713 static void pmz_break_ctl(struct uart_port *port, int break_state)  in pmz_break_ctl()  argument
715 	struct uart_pmac_port *uap = to_pmz(port);  in pmz_break_ctl()
726 	spin_lock_irqsave(&port->lock, flags);  in pmz_break_ctl()
734 	spin_unlock_irqrestore(&port->lock, flags);  in pmz_break_ctl()
906 	spin_lock_irqsave(&uap->port.lock, flags);  in pmz_irda_reset()
910 	spin_unlock_irqrestore(&uap->port.lock, flags);  in pmz_irda_reset()
913 	spin_lock_irqsave(&uap->port.lock, flags);  in pmz_irda_reset()
917 	spin_unlock_irqrestore(&uap->port.lock, flags);  in pmz_irda_reset()
925 static int pmz_startup(struct uart_port *port)  in pmz_startup()  argument
927 	struct uart_pmac_port *uap = to_pmz(port);  in pmz_startup()
939 		spin_lock_irqsave(&port->lock, flags);  in pmz_startup()
941 		spin_unlock_irqrestore(&port->lock, flags);  in pmz_startup()
943 	sprintf(uap->irq_name, PMACZILOG_NAME"%d", uap->port.line);  in pmz_startup()
944 	if (request_irq(uap->port.irq, pmz_interrupt, IRQF_SHARED,  in pmz_startup()
964 	spin_lock_irqsave(&port->lock, flags);  in pmz_startup()
966 	spin_unlock_irqrestore(&port->lock, flags);  in pmz_startup()
973 static void pmz_shutdown(struct uart_port *port)  in pmz_shutdown()  argument
975 	struct uart_pmac_port *uap = to_pmz(port);  in pmz_shutdown()
980 	spin_lock_irqsave(&port->lock, flags);  in pmz_shutdown()
995 	spin_unlock_irqrestore(&port->lock, flags);  in pmz_shutdown()
998 	free_irq(uap->port.irq, uap);  in pmz_shutdown()
1000 	spin_lock_irqsave(&port->lock, flags);  in pmz_shutdown()
1007 	spin_unlock_irqrestore(&port->lock, flags);  in pmz_shutdown()
1095 	uap->port.read_status_mask = Rx_OVR;  in pmz_convert_to_zs()
1097 		uap->port.read_status_mask |= CRC_ERR | PAR_ERR;  in pmz_convert_to_zs()
1099 		uap->port.read_status_mask |= BRK_ABRT;  in pmz_convert_to_zs()
1101 	uap->port.ignore_status_mask = 0;  in pmz_convert_to_zs()
1103 		uap->port.ignore_status_mask |= CRC_ERR | PAR_ERR;  in pmz_convert_to_zs()
1105 		uap->port.ignore_status_mask |= BRK_ABRT;  in pmz_convert_to_zs()
1107 			uap->port.ignore_status_mask |= Rx_OVR;  in pmz_convert_to_zs()
1111 		uap->port.ignore_status_mask = 0xff;  in pmz_convert_to_zs()
1248 static void __pmz_set_termios(struct uart_port *port, struct ktermios *termios,  in __pmz_set_termios()  argument
1251 	struct uart_pmac_port *uap = to_pmz(port);  in __pmz_set_termios()
1267 		baud = uart_get_baud_rate(port, termios, old, 1200, 4000000);  in __pmz_set_termios()
1276 		baud = uart_get_baud_rate(port, termios, old, 1200, 230400);  in __pmz_set_termios()
1279 		if (UART_ENABLE_MS(&uap->port, termios->c_cflag)) {  in __pmz_set_termios()
1290 	uart_update_timeout(port, termios->c_cflag, baud);  in __pmz_set_termios()
1296 static void pmz_set_termios(struct uart_port *port, struct ktermios *termios,  in pmz_set_termios()  argument
1299 	struct uart_pmac_port *uap = to_pmz(port);  in pmz_set_termios()
1302 	spin_lock_irqsave(&port->lock, flags);	  in pmz_set_termios()
1308 	__pmz_set_termios(port, termios, old);  in pmz_set_termios()
1314 	spin_unlock_irqrestore(&port->lock, flags);  in pmz_set_termios()
1317 static const char *pmz_type(struct uart_port *port)  in pmz_type()  argument
1319 	struct uart_pmac_port *uap = to_pmz(port);  in pmz_type()
1331 static void pmz_release_port(struct uart_port *port)  in pmz_release_port()  argument
1335 static int pmz_request_port(struct uart_port *port)  in pmz_request_port()  argument
1341 static void pmz_config_port(struct uart_port *port, int flags)  in pmz_config_port()  argument
1346 static int pmz_verify_port(struct uart_port *port, struct serial_struct *ser)  in pmz_verify_port()  argument
1353 static int pmz_poll_get_char(struct uart_port *port)  in pmz_poll_get_char()  argument
1356 		container_of(port, struct uart_pmac_port, port);  in pmz_poll_get_char()
1369 static void pmz_poll_put_char(struct uart_port *port, unsigned char c)  in pmz_poll_put_char()  argument
1372 		container_of(port, struct uart_pmac_port, port);  in pmz_poll_put_char()
1428 	uap->port.mapbase = r_ports.start;  in pmz_init_port()
1429 	uap->port.membase = ioremap(uap->port.mapbase, 0x1000);  in pmz_init_port()
1431 	uap->control_reg = uap->port.membase;  in pmz_init_port()
1508 	uap->port.iotype = UPIO_MEM;  in pmz_init_port()
1509 	uap->port.irq = irq_of_parse_and_map(np, 0);  in pmz_init_port()
1510 	uap->port.uartclk = ZS_CLOCK;  in pmz_init_port()
1511 	uap->port.fifosize = 1;  in pmz_init_port()
1512 	uap->port.ops = &pmz_pops;  in pmz_init_port()
1513 	uap->port.type = PORT_PMAC_ZILOG;  in pmz_init_port()
1514 	uap->port.flags = 0;  in pmz_init_port()
1522 	if (uap->port.irq == 0 &&  in pmz_init_port()
1526 		uap->port.irq = irq_create_mapping(NULL, 64 + 15);  in pmz_init_port()
1575 	uap->port.dev = &mdev->ofdev.dev;  in pmz_attach()
1588 	return uart_add_one_port(&pmz_uart_reg, &uap->port);  in pmz_attach()
1602 	uart_remove_one_port(&pmz_uart_reg, &uap->port);  in pmz_detach()
1610 	uap->port.dev = NULL;  in pmz_detach()
1625 	uart_suspend_port(&pmz_uart_reg, &uap->port);  in pmz_suspend()
1638 	uart_resume_port(&pmz_uart_reg, &uap->port);  in pmz_resume()
1689 		pmz_ports[count].port.line	= count;  in pmz_probe()
1690 		pmz_ports[count+1].port.line	= count+1;  in pmz_probe()
1726 	uap->port.mapbase  = r_ports->start;  in pmz_init_port()
1727 	uap->port.membase  = (unsigned char __iomem *) r_ports->start;  in pmz_init_port()
1728 	uap->port.iotype   = UPIO_MEM;  in pmz_init_port()
1729 	uap->port.irq      = irq;  in pmz_init_port()
1730 	uap->port.uartclk  = ZS_CLOCK;  in pmz_init_port()
1731 	uap->port.fifosize = 1;  in pmz_init_port()
1732 	uap->port.ops      = &pmz_pops;  in pmz_init_port()
1733 	uap->port.type     = PORT_PMAC_ZILOG;  in pmz_init_port()
1734 	uap->port.flags    = 0;  in pmz_init_port()
1736 	uap->control_reg   = uap->port.membase;  in pmz_init_port()
1751 	pmz_ports[0].port.line = 0;  in pmz_probe()
1761 	pmz_ports[1].port.line = 1;  in pmz_probe()
1790 	uap->port.dev = &pdev->dev;  in pmz_attach()
1793 	return uart_add_one_port(&pmz_uart_reg, &uap->port);  in pmz_attach()
1803 	uart_remove_one_port(&pmz_uart_reg, &uap->port);  in pmz_detach()
1805 	uap->port.dev = NULL;  in pmz_detach()
1956 static void pmz_console_putchar(struct uart_port *port, int ch)  in pmz_console_putchar()  argument
1959 		container_of(port, struct uart_pmac_port, port);  in pmz_console_putchar()
1976 	spin_lock_irqsave(&uap->port.lock, flags);  in pmz_console_write()
1982 	uart_console_write(&uap->port, s, count, pmz_console_putchar);  in pmz_console_write()
1988 	spin_unlock_irqrestore(&uap->port.lock, flags);  in pmz_console_write()
1997 	struct uart_port *port;  in pmz_console_setup()  local
2027 	port = &uap->port;  in pmz_console_setup()
2037 	spin_lock_init(&port->lock);  in pmz_console_setup()
2049 	return uart_set_options(port, co, baud, parity, bits, flow);  in pmz_console_setup()