45 	struct uart_port	port;  member
60 static void sport_stop_tx(struct uart_port *port);
153 	struct tty_port *port = &up->port.state->port;  in sport_uart_rx_irq()  local
156 	spin_lock(&up->port.lock);  in sport_uart_rx_irq()
160 		up->port.icount.rx++;  in sport_uart_rx_irq()
162 		if (!uart_handle_sysrq_char(&up->port, ch))  in sport_uart_rx_irq()
163 			tty_insert_flip_char(port, ch, TTY_NORMAL);  in sport_uart_rx_irq()
166 	spin_unlock(&up->port.lock);  in sport_uart_rx_irq()
169 	tty_flip_buffer_push(port);  in sport_uart_rx_irq()
178 	spin_lock(&up->port.lock);  in sport_uart_tx_irq()
180 	spin_unlock(&up->port.lock);  in sport_uart_tx_irq()
190 	spin_lock(&up->port.lock);  in sport_uart_err_irq()
194 		up->port.icount.overrun++;  in sport_uart_err_irq()
195 		tty_insert_flip_char(&up->port.state->port, 0, TTY_OVERRUN);  in sport_uart_err_irq()
209 	spin_unlock(&up->port.lock);  in sport_uart_err_irq()
216 static unsigned int sport_get_mctrl(struct uart_port *port)  in sport_get_mctrl()  argument
218 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_get_mctrl()
229 static void sport_set_mctrl(struct uart_port *port, unsigned int mctrl)  in sport_set_mctrl()  argument
231 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_set_mctrl()
250 	status = sport_get_mctrl(&up->port);  in sport_mctrl_cts_int()
251 	uart_handle_cts_change(&up->port, status & TIOCM_CTS);  in sport_mctrl_cts_int()
256 static unsigned int sport_get_mctrl(struct uart_port *port)  in sport_get_mctrl()  argument
262 static void sport_set_mctrl(struct uart_port *port, unsigned int mctrl)  in sport_set_mctrl()  argument
269 static int sport_startup(struct uart_port *port)  in sport_startup()  argument
271 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_startup()
275 	ret = request_irq(up->port.irq, sport_uart_rx_irq, 0,  in sport_startup()
278 		dev_err(port->dev, "unable to request SPORT RX interrupt\n");  in sport_startup()
282 	ret = request_irq(up->port.irq+1, sport_uart_tx_irq, 0,  in sport_startup()
285 		dev_err(port->dev, "unable to request SPORT TX interrupt\n");  in sport_startup()
292 		dev_err(port->dev, "unable to request SPORT status interrupt\n");  in sport_startup()
303 …	dev_info(port->dev, "Unable to attach BlackFin UART over SPORT CTS interrupt. So, disable it.\n");  in sport_startup()
308 			dev_info(port->dev, "fail to request RTS PIN at GPIO_%d\n", up->rts_pin);  in sport_startup()
317 	free_irq(up->port.irq+1, up);  in sport_startup()
319 	free_irq(up->port.irq, up);  in sport_startup()
332 	struct circ_buf *xmit = &up->port.state->xmit;  in sport_uart_tx_chars()
337 	if (up->port.x_char) {  in sport_uart_tx_chars()
338 		tx_one_byte(up, up->port.x_char);  in sport_uart_tx_chars()
339 		up->port.icount.tx++;  in sport_uart_tx_chars()
340 		up->port.x_char = 0;  in sport_uart_tx_chars()
344 	if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {  in sport_uart_tx_chars()
351 			sport_stop_tx(&up->port);  in sport_uart_tx_chars()
358 		up->port.icount.tx++;  in sport_uart_tx_chars()
362 		uart_write_wakeup(&up->port);  in sport_uart_tx_chars()
367 static unsigned int sport_tx_empty(struct uart_port *port)  in sport_tx_empty()  argument
369 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_tx_empty()
380 static void sport_stop_tx(struct uart_port *port)  in sport_stop_tx()  argument
382 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_stop_tx()
404 static void sport_start_tx(struct uart_port *port)  in sport_start_tx()  argument
406 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_start_tx()
420 static void sport_stop_rx(struct uart_port *port)  in sport_stop_rx()  argument
422 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_stop_rx()
430 static void sport_break_ctl(struct uart_port *port, int break_state)  in sport_break_ctl()  argument
435 static void sport_shutdown(struct uart_port *port)  in sport_shutdown()  argument
437 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_shutdown()
439 	dev_dbg(port->dev, "%s enter\n", __func__);  in sport_shutdown()
446 	free_irq(up->port.irq, up);  in sport_shutdown()
447 	free_irq(up->port.irq+1, up);  in sport_shutdown()
457 static const char *sport_type(struct uart_port *port)  in sport_type()  argument
459 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_type()
462 	return up->port.type == PORT_BFIN_SPORT ? "BFIN-SPORT-UART" : NULL;  in sport_type()
465 static void sport_release_port(struct uart_port *port)  in sport_release_port()  argument
470 static int sport_request_port(struct uart_port *port)  in sport_request_port()  argument
476 static void sport_config_port(struct uart_port *port, int flags)  in sport_config_port()  argument
478 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_config_port()
481 	up->port.type = PORT_BFIN_SPORT;  in sport_config_port()
484 static int sport_verify_port(struct uart_port *port, struct serial_struct *ser)  in sport_verify_port()  argument
490 static void sport_set_termios(struct uart_port *port,  in sport_set_termios()  argument
493 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_set_termios()
532 	spin_lock_irqsave(&up->port.lock, flags);  in sport_set_termios()
534 	port->read_status_mask = 0;  in sport_set_termios()
539 	port->ignore_status_mask = 0;  in sport_set_termios()
557 	port->uartclk = uart_get_baud_rate(port, termios, old, 0, get_sclk()/16);  in sport_set_termios()
563 	sport_uart_setup(up, up->csize + up->stopb, port->uartclk);  in sport_set_termios()
578 	uart_update_timeout(port, termios->c_cflag, port->uartclk);  in sport_set_termios()
584 	spin_unlock_irqrestore(&up->port.lock, flags);  in sport_set_termios()
636 	return uart_set_options(&up->port, co, baud, parity, bits, flow);  in sport_uart_console_setup()
639 static void sport_uart_console_putchar(struct uart_port *port, int ch)  in sport_uart_console_putchar()  argument
641 	struct sport_uart_port *up = (struct sport_uart_port *)port;  in sport_uart_console_putchar()
658 	spin_lock_irqsave(&up->port.lock, flags);  in sport_uart_console_write()
661 		uart_console_write(&up->port, s, count, sport_uart_console_putchar);  in sport_uart_console_write()
671 		uart_console_write(&up->port, s, count, sport_uart_console_putchar);  in sport_uart_console_write()
689 	spin_unlock_irqrestore(&up->port.lock, flags);  in sport_uart_console_write()
727 		uart_suspend_port(&sport_uart_reg, &sport->port);  in sport_uart_suspend()
738 		uart_resume_port(&sport_uart_reg, &sport->port);  in sport_uart_resume()
780 		spin_lock_init(&sport->port.lock);  in sport_uart_probe()
781 		sport->port.fifosize  = SPORT_TX_FIFO_SIZE,  in sport_uart_probe()
782 		sport->port.ops       = &sport_uart_ops;  in sport_uart_probe()
783 		sport->port.line      = pdev->id;  in sport_uart_probe()
784 		sport->port.iotype    = UPIO_MEM;  in sport_uart_probe()
785 		sport->port.flags     = UPF_BOOT_AUTOCONF;  in sport_uart_probe()
794 		sport->port.membase = ioremap(res->start, resource_size(res));  in sport_uart_probe()
795 		if (!sport->port.membase) {  in sport_uart_probe()
800 		sport->port.mapbase = res->start;  in sport_uart_probe()
802 		sport->port.irq = platform_get_irq(pdev, 0);  in sport_uart_probe()
803 		if ((int)sport->port.irq < 0) {  in sport_uart_probe()
834 		sport->port.dev = &pdev->dev;  in sport_uart_probe()
836 		ret = uart_add_one_port(&sport_uart_reg, &sport->port);  in sport_uart_probe()
845 		iounmap(sport->port.membase);  in sport_uart_probe()
864 		uart_remove_one_port(&sport_uart_reg, &sport->port);  in sport_uart_remove()
865 		iounmap(sport->port.membase);  in sport_uart_remove()