Lines Matching refs:port

104 	int	(*request_irq)(struct uart_port *port);
105 	void	(*free_irq)(struct uart_port *port);
109 	struct uart_port	port;
131 ltq_uart_port *to_ltq_uart_port(struct uart_port *port)
133 	return container_of(port, struct ltq_uart_port, port);
137 lqasc_stop_tx(struct uart_port *port)
142 static bool lqasc_tx_ready(struct uart_port *port)
144 	u32 fstat = __raw_readl(port->membase + LTQ_ASC_FSTAT);
150 lqasc_start_tx(struct uart_port *port)
153 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
157 	uart_port_tx(port, ch,
158 		lqasc_tx_ready(port),
159 		writeb(ch, port->membase + LTQ_ASC_TBUF));
165 lqasc_stop_rx(struct uart_port *port)
167 	__raw_writel(ASCWHBSTATE_CLRREN, port->membase + LTQ_ASC_WHBSTATE);
171 lqasc_rx_chars(struct uart_port *port)
173 	struct tty_port *tport = &port->state->port;
176 	fifocnt = __raw_readl(port->membase + LTQ_ASC_FSTAT) &
180 		ch = readb(port->membase + LTQ_ASC_RBUF);
181 		rsr = (__raw_readl(port->membase + LTQ_ASC_STATE)
184 		port->icount.rx++;
192 				port->icount.parity++;
194 					port->membase + LTQ_ASC_WHBSTATE);
196 				port->icount.frame++;
198 					port->membase + LTQ_ASC_WHBSTATE);
201 				port->icount.overrun++;
203 					port->membase + LTQ_ASC_WHBSTATE);
206 			rsr &= port->read_status_mask;
214 		if ((rsr & port->ignore_status_mask) == 0)
236 	struct uart_port *port = (struct uart_port *)_port;
237 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
240 	__raw_writel(ASC_IRNCR_TIR, port->membase + LTQ_ASC_IRNCR);
242 	lqasc_start_tx(port);
250 	struct uart_port *port = (struct uart_port *)_port;
251 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
254 	__raw_writel(ASC_IRNCR_EIR, port->membase + LTQ_ASC_IRNCR);
257 		ASCWHBSTATE_CLRROE, port->membase + LTQ_ASC_WHBSTATE);
266 	struct uart_port *port = (struct uart_port *)_port;
267 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
270 	__raw_writel(ASC_IRNCR_RIR, port->membase + LTQ_ASC_IRNCR);
271 	lqasc_rx_chars(port);
280 	struct uart_port *port = p;
281 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
284 	stat = readl(port->membase + LTQ_ASC_IRNCR);
302 lqasc_tx_empty(struct uart_port *port)
305 	status = __raw_readl(port->membase + LTQ_ASC_FSTAT) &
311 lqasc_get_mctrl(struct uart_port *port)
317 lqasc_set_mctrl(struct uart_port *port, u_int mctrl)
322 lqasc_break_ctl(struct uart_port *port, int break_state)
327 lqasc_startup(struct uart_port *port)
329 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
335 	port->uartclk = clk_get_rate(ltq_port->freqclk);
339 		port->membase + LTQ_ASC_CLC);
341 	__raw_writel(0, port->membase + LTQ_ASC_PISEL);
345 		port->membase + LTQ_ASC_TXFCON);
349 		port->membase + LTQ_ASC_RXFCON);
355 		ASCCON_ROEN, port->membase + LTQ_ASC_CON);
359 	retval = ltq_port->soc->request_irq(port);
364 		port->membase + LTQ_ASC_IRNREN);
369 lqasc_shutdown(struct uart_port *port)
371 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
374 	ltq_port->soc->free_irq(port);
377 	__raw_writel(0, port->membase + LTQ_ASC_CON);
379 		port->membase + LTQ_ASC_RXFCON);
381 		port->membase + LTQ_ASC_TXFCON);
388 lqasc_set_termios(struct uart_port *port, struct ktermios *new,
397 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
428 	port->read_status_mask = ASCSTATE_ROE;
430 		port->read_status_mask |= ASCSTATE_FE | ASCSTATE_PE;
432 	port->ignore_status_mask = 0;
434 		port->ignore_status_mask |= ASCSTATE_FE | ASCSTATE_PE;
442 			port->ignore_status_mask |= ASCSTATE_ROE;
446 		port->ignore_status_mask |= UART_DUMMY_UER_RX;
454 	asc_update_bits(0, con, port->membase + LTQ_ASC_CON);
457 	baud = uart_get_baud_rate(port, new, old, 0, port->uartclk / 16);
458 	divisor = uart_get_divisor(port, baud);
462 	asc_update_bits(ASCCON_R, 0, port->membase + LTQ_ASC_CON);
465 	asc_update_bits(ASCCON_FDE, 0, port->membase + LTQ_ASC_CON);
468 	asc_update_bits(ASCCON_BRS, 0, port->membase + LTQ_ASC_CON);
471 	__raw_writel(divisor, port->membase + LTQ_ASC_BG);
474 	asc_update_bits(0, ASCCON_R, port->membase + LTQ_ASC_CON);
477 	__raw_writel(ASCWHBSTATE_SETREN, port->membase + LTQ_ASC_WHBSTATE);
485 	uart_update_timeout(port, cflag, baud);
489 lqasc_type(struct uart_port *port)
491 	if (port->type == PORT_LTQ_ASC)
498 lqasc_release_port(struct uart_port *port)
500 	struct platform_device *pdev = to_platform_device(port->dev);
502 	if (port->flags & UPF_IOREMAP) {
503 		devm_iounmap(&pdev->dev, port->membase);
504 		port->membase = NULL;
509 lqasc_request_port(struct uart_port *port)
511 	struct platform_device *pdev = to_platform_device(port->dev);
529 	if (port->flags & UPF_IOREMAP) {
530 		port->membase = devm_ioremap(&pdev->dev,
531 			port->mapbase, size);
532 		if (port->membase == NULL)
539 lqasc_config_port(struct uart_port *port, int flags)
542 		port->type = PORT_LTQ_ASC;
543 		lqasc_request_port(port);
548 lqasc_verify_port(struct uart_port *port,
581 lqasc_console_putchar(struct uart_port *port, unsigned char ch)
583 	if (!port->membase)
586 	while (!lqasc_tx_ready(port))
589 	writeb(ch, port->membase + LTQ_ASC_TBUF);
592 static void lqasc_serial_port_write(struct uart_port *port, const char *s,
595 	uart_console_write(port, s, count, lqasc_console_putchar);
612 	lqasc_serial_port_write(&ltq_port->port, s, count);
620 	struct uart_port *port;
633 	port = &ltq_port->port;
638 	port->uartclk = clk_get_rate(ltq_port->freqclk);
642 	return uart_set_options(port, co, baud, parity, bits, flow);
669 	lqasc_serial_port_write(&dev->port, s, count);
676 	if (!device->port.membase)
705 	struct uart_port *port = &ltq_port->port;
722 	port->irq = ltq_port->tx_irq;
727 static int request_irq_lantiq(struct uart_port *port)
729 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
733 			     0, "asc_tx", port);
735 		dev_err(port->dev, "failed to request asc_tx\n");
740 			     0, "asc_rx", port);
742 		dev_err(port->dev, "failed to request asc_rx\n");
747 			     0, "asc_err", port);
749 		dev_err(port->dev, "failed to request asc_err\n");
755 	free_irq(ltq_port->rx_irq, port);
757 	free_irq(ltq_port->tx_irq, port);
761 static void free_irq_lantiq(struct uart_port *port)
763 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
765 	free_irq(ltq_port->tx_irq, port);
766 	free_irq(ltq_port->rx_irq, port);
767 	free_irq(ltq_port->err_irq, port);
772 	struct uart_port *port = &ltq_port->port;
777 		dev_err(dev, "failed to fetch IRQ for serial port\n");
781 	port->irq = ret;
786 static int request_irq_intel(struct uart_port *port)
788 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
792 			     "asc_irq", port);
794 		dev_err(port->dev, "failed to request asc_irq\n");
799 static void free_irq_intel(struct uart_port *port)
801 	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
803 	free_irq(ltq_port->common_irq, port);
810 	struct uart_port *port;
818 			"failed to get memory for serial port\n");
827 	port = &ltq_port->port;
850 		dev_err(&pdev->dev, "port %d already allocated\n", line);
854 	port->iotype	= SERIAL_IO_MEM;
855 	port->flags	= UPF_BOOT_AUTOCONF | UPF_IOREMAP;
856 	port->ops	= &lqasc_pops;
857 	port->fifosize	= 16;
858 	port->type	= PORT_LTQ_ASC;
859 	port->line	= line;
860 	port->dev	= &pdev->dev;
862 	port->mapbase	= mmres->start;
885 	ret = uart_add_one_port(&lqasc_reg, port);
892 	struct uart_port *port = platform_get_drvdata(pdev);
894 	uart_remove_one_port(&lqasc_reg, port);