Lines Matching refs:uart
132 * @uart: The UART port
136 static inline void men_z135_reg_set(struct men_z135_port *uart,
139 struct uart_port *port = &uart->port;
143 spin_lock_irqsave(&uart->lock, flags);
149 spin_unlock_irqrestore(&uart->lock, flags);
154 * @uart: The UART port
158 static void men_z135_reg_clr(struct men_z135_port *uart,
161 struct uart_port *port = &uart->port;
165 spin_lock_irqsave(&uart->lock, flags);
171 spin_unlock_irqrestore(&uart->lock, flags);
176 * @uart: The UART port
181 static void men_z135_handle_modem_status(struct men_z135_port *uart)
185 msr = (uart->stat_reg >> 8) & 0xff;
188 uart_handle_dcd_change(&uart->port,
191 uart_handle_cts_change(&uart->port,
195 static void men_z135_handle_lsr(struct men_z135_port *uart)
197 struct uart_port *port = &uart->port;
200 lsr = (uart->stat_reg >> 16) & 0xff;
216 * @uart: The UART port
220 static u16 get_rx_fifo_content(struct men_z135_port *uart)
222 struct uart_port *port = &uart->port;
239 * @uart: Pointer to struct men_z135_port
243 static void men_z135_handle_rx(struct men_z135_port *uart)
245 struct uart_port *port = &uart->port;
251 size = get_rx_fifo_content(uart);
264 dev_warn(&uart->mdev->dev,
271 memcpy_fromio(uart->rxbuf, port->membase + MEN_Z135_RX_RAM, room);
276 copied = tty_insert_flip_string(tport, uart->rxbuf, room);
278 dev_warn(&uart->mdev->dev,
290 * @uart: Pointer to struct men_z135_port
293 static void men_z135_handle_tx(struct men_z135_port *uart)
295 struct uart_port *port = &uart->port;
329 dev_err(&uart->mdev->dev,
363 men_z135_reg_set(uart, MEN_Z135_CONF_REG, MEN_Z135_IER_TXCIEN);
365 men_z135_reg_clr(uart, MEN_Z135_CONF_REG, MEN_Z135_IER_TXCIEN);
384 struct men_z135_port *uart = (struct men_z135_port *)data;
385 struct uart_port *port = &uart->port;
389 uart->stat_reg = ioread32(port->membase + MEN_Z135_STAT_REG);
390 irq_id = IRQ_ID(uart->stat_reg);
400 men_z135_handle_lsr(uart);
406 dev_dbg(&uart->mdev->dev, "Character Timeout Indication\n");
407 men_z135_handle_rx(uart);
412 men_z135_handle_tx(uart);
417 men_z135_handle_modem_status(uart);
428 * @uart: z135 private uart port structure
433 static int men_z135_request_irq(struct men_z135_port *uart)
435 struct device *dev = &uart->mdev->dev;
436 struct uart_port *port = &uart->port;
440 "men_z135_intr", uart);
546 struct men_z135_port *uart = to_men_z135(port);
548 men_z135_reg_clr(uart, MEN_Z135_CONF_REG, MEN_Z135_IER_TXCIEN);
559 struct men_z135_port *uart = to_men_z135(port);
561 men_z135_reg_clr(uart, MEN_Z135_CONF_REG, MEN_Z135_IER_MSIEN);
573 struct men_z135_port *uart = to_men_z135(port);
575 if (uart->automode)
578 men_z135_handle_tx(uart);
589 struct men_z135_port *uart = to_men_z135(port);
591 men_z135_reg_clr(uart, MEN_Z135_CONF_REG, MEN_Z135_IER_RXCIEN);
602 struct men_z135_port *uart = to_men_z135(port);
604 men_z135_reg_set(uart, MEN_Z135_CONF_REG, MEN_Z135_IER_MSIEN);
609 struct men_z135_port *uart = to_men_z135(port);
613 err = men_z135_request_irq(uart);
635 struct men_z135_port *uart = to_men_z135(port);
640 men_z135_reg_clr(uart, MEN_Z135_CONF_REG, conf_reg);
642 free_irq(uart->port.irq, uart);
649 struct men_z135_port *uart = to_men_z135(port);
693 uart->automode = true;
697 uart->automode = false;
729 struct men_z135_port *uart = to_men_z135(port);
734 mcb_release_mem(uart->mem);
739 struct men_z135_port *uart = to_men_z135(port);
740 struct mcb_device *mdev = uart->mdev;
743 mem = mcb_request_mem(uart->mdev, dev_name(&mdev->dev));
748 uart->mem = mem;
804 * new uart port to the tty layer.
809 struct men_z135_port *uart;
816 uart = devm_kzalloc(dev, sizeof(struct men_z135_port), GFP_KERNEL);
817 if (!uart)
820 uart->rxbuf = (unsigned char *)__get_free_page(GFP_KERNEL);
821 if (!uart->rxbuf)
826 mcb_set_drvdata(mdev, uart);
828 uart->port.uartclk = MEN_Z135_BASECLK * 16;
829 uart->port.fifosize = MEN_Z135_FIFO_SIZE;
830 uart->port.iotype = UPIO_MEM;
831 uart->port.ops = &men_z135_ops;
832 uart->port.irq = mcb_get_irq(mdev);
833 uart->port.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP;
834 uart->port.line = line++;
835 uart->port.dev = dev;
836 uart->port.type = PORT_MEN_Z135;
837 uart->port.mapbase = mem->start;
838 uart->port.membase = NULL;
839 uart->mdev = mdev;
841 spin_lock_init(&uart->lock);
843 err = uart_add_one_port(&men_z135_driver, &uart->port);
850 free_page((unsigned long) uart->rxbuf);
863 struct men_z135_port *uart = mcb_get_drvdata(mdev);
866 uart_remove_one_port(&men_z135_driver, &uart->port);
867 free_page((unsigned long) uart->rxbuf);
878 .name = "z135-uart",