Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/uart/uart_dev_ns8250.h
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2003 Marcel Moolenaar 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _DEV_UART_DEV_NS8250_H_ 32 #define _DEV_UART_DEV_NS8250_H_ 33 34 /* 35 * High-level UART interface. 36 */ 37 struct ns8250_softc { 38 struct uart_softc base; 39 uint8_t fcr; 40 uint8_t ier; 41 uint8_t mcr; 42 43 uint8_t ier_mask; 44 uint8_t ier_rxbits; 45 uint8_t busy_detect; 46 }; 47 48 extern struct uart_ops uart_ns8250_ops; 49 50 int ns8250_bus_attach(struct uart_softc *); 51 int ns8250_bus_detach(struct uart_softc *); 52 int ns8250_bus_flush(struct uart_softc *, int); 53 int ns8250_bus_getsig(struct uart_softc *); 54 int ns8250_bus_ioctl(struct uart_softc *, int, intptr_t); 55 int ns8250_bus_ipend(struct uart_softc *); 56 int ns8250_bus_param(struct uart_softc *, int, int, int, int); 57 int ns8250_bus_probe(struct uart_softc *); 58 int ns8250_bus_receive(struct uart_softc *); 59 int ns8250_bus_setsig(struct uart_softc *, int); 60 int ns8250_bus_transmit(struct uart_softc *); 61 void ns8250_bus_grab(struct uart_softc *); 62 void ns8250_bus_ungrab(struct uart_softc *); 63 64 #endif /* _DEV_UART_DEV_NS8250_H_ */
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