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Diffstat (limited to 'freebsd/sys/sys/serial.h')
| -rw-r--r-- | freebsd/sys/sys/serial.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/freebsd/sys/sys/serial.h b/freebsd/sys/sys/serial.h new file mode 100644 index 00000000..1a149a96 --- /dev/null +++ b/freebsd/sys/sys/serial.h @@ -0,0 +1,92 @@ +/*- + * Copyright (c) 2004 Poul-Henning Kamp + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file contains definitions which pertain to serial ports as such, + * (both async and sync), but which do not necessarily have anything to + * do with tty processing. + * + * $FreeBSD$ + */ + +#ifndef _SYS_SERIAL_H_ +#define _SYS_SERIAL_H_ + + +/* + * Indentification of modem control signals. These definitions match + * the TIOCMGET definitions in <sys/ttycom.h> shifted a bit down, and + * that identity is enforced with CTASSERT at the bottom of kern/tty.c + * Both the modem bits and delta bits must fit in 16 bit. + */ +#define SER_DTR 0x0001 /* data terminal ready */ +#define SER_RTS 0x0002 /* request to send */ +#define SER_STX 0x0004 /* secondary transmit */ +#define SER_SRX 0x0008 /* secondary receive */ +#define SER_CTS 0x0010 /* clear to send */ +#define SER_DCD 0x0020 /* data carrier detect */ +#define SER_RI 0x0040 /* ring indicate */ +#define SER_DSR 0x0080 /* data set ready */ + +#define SER_MASK_STATE 0x00ff + +/* Delta bits, used to indicate which signals should/was affected */ +#define SER_DELTA(x) ((x) << 8) + +#define SER_DDTR SER_DELTA(SER_DTR) +#define SER_DRTS SER_DELTA(SER_RTS) +#define SER_DSTX SER_DELTA(SER_STX) +#define SER_DSRX SER_DELTA(SER_SRX) +#define SER_DCTS SER_DELTA(SER_CTS) +#define SER_DDCD SER_DELTA(SER_DCD) +#define SER_DRI SER_DELTA(SER_RI) +#define SER_DDSR SER_DELTA(SER_DSR) + +#define SER_MASK_DELTA SER_DELTA(SER_MASK_STATE) + +#ifdef _KERNEL +/* + * Specification of interrupt sources typical for serial ports. These are + * useful when some umbrella driver like scc(4) has enough knowledge of + * the hardware to obtain the set of pending interrupts but does not itself + * handle the interrupt. Each interrupt source can be given an interrupt + * resource for which inferior drivers can install handlers. The lower 16 + * bits are kept free for the signals above. + */ +#define SER_INT_OVERRUN 0x010000 +#define SER_INT_BREAK 0x020000 +#define SER_INT_RXREADY 0x040000 +#define SER_INT_SIGCHG 0x080000 +#define SER_INT_TXIDLE 0x100000 + +#define SER_INT_MASK 0xff0000 +#define SER_INT_SIGMASK (SER_MASK_DELTA | SER_MASK_STATE) + +#ifndef LOCORE +typedef int serdev_intr_t(void*); +#endif + +#endif /* _KERNEL */ + +#endif /* !_SYS_SERIAL_H_ */ |