1 /*- 2 * Copyright (c) 2004 Poul-Henning Kamp 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * This file contains definitions which pertain to serial ports as such, 27 * (both async and sync), but which do not necessarily have anything to 28 * do with tty processing. 29 * 30 * $FreeBSD$ 31 */ 32 33 #ifndef _SYS_SERIAL_H_ 34 #define _SYS_SERIAL_H_ 35 36 37 /* 38 * Indentification of modem control signals. These definitions match 39 * the TIOCMGET definitions in <sys/ttycom.h> shifted a bit down, and 40 * that identity is enforced with CTASSERT at the bottom of kern/tty.c 41 * Both the modem bits and delta bits must fit in 16 bit. 42 */ 43 #define SER_DTR 0x0001 /* data terminal ready */ 44 #define SER_RTS 0x0002 /* request to send */ 45 #define SER_STX 0x0004 /* secondary transmit */ 46 #define SER_SRX 0x0008 /* secondary receive */ 47 #define SER_CTS 0x0010 /* clear to send */ 48 #define SER_DCD 0x0020 /* data carrier detect */ 49 #define SER_RI 0x0040 /* ring indicate */ 50 #define SER_DSR 0x0080 /* data set ready */ 51 52 #define SER_MASK_STATE 0x00ff 53 54 /* Delta bits, used to indicate which signals should/was affected */ 55 #define SER_DELTA(x) ((x) << 8) 56 57 #define SER_DDTR SER_DELTA(SER_DTR) 58 #define SER_DRTS SER_DELTA(SER_RTS) 59 #define SER_DSTX SER_DELTA(SER_STX) 60 #define SER_DSRX SER_DELTA(SER_SRX) 61 #define SER_DCTS SER_DELTA(SER_CTS) 62 #define SER_DDCD SER_DELTA(SER_DCD) 63 #define SER_DRI SER_DELTA(SER_RI) 64 #define SER_DDSR SER_DELTA(SER_DSR) 65 66 #define SER_MASK_DELTA SER_DELTA(SER_MASK_STATE) 67 68 #ifdef _KERNEL 69 /* 70 * Specification of interrupt sources typical for serial ports. These are 71 * useful when some umbrella driver like scc(4) has enough knowledge of 72 * the hardware to obtain the set of pending interrupts but does not itself 73 * handle the interrupt. Each interrupt source can be given an interrupt 74 * resource for which inferior drivers can install handlers. The lower 16 75 * bits are kept free for the signals above. 76 */ 77 #define SER_INT_OVERRUN 0x010000 78 #define SER_INT_BREAK 0x020000 79 #define SER_INT_RXREADY 0x040000 80 #define SER_INT_SIGCHG 0x080000 81 #define SER_INT_TXIDLE 0x100000 82 83 #define SER_INT_MASK 0xff0000 84 #define SER_INT_SIGMASK (SER_MASK_DELTA | SER_MASK_STATE) 85 86 #ifndef LOCORE 87 typedef int serdev_intr_t(void*); 88 #endif 89 90 #endif /* _KERNEL */ 91 92 #endif /* !_SYS_SERIAL_H_ */ 93