Adding tty support files from FREEBSD tree

2 files changed, 236 insertions, 0 deletions

diff --git a/freebsd/sys/sys/cons.h b/freebsd/sys/sys/cons.h
new file mode 100644
index 00000000..78cba61e
--- /dev/null
+++ b/freebsd/sys/sys/cons.h
@@ -0,0 +1,144 @@
+/*-
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1991 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department.
+ *
+ * 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.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ *	from: @(#)cons.h	7.2 (Berkeley) 5/9/91
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_CONS_H_
+#define	_MACHINE_CONS_H_
+
+struct consdev;
+struct tty;
+
+typedef	void	cn_probe_t(struct consdev *);
+typedef	void	cn_init_t(struct consdev *);
+typedef	void	cn_term_t(struct consdev *);
+typedef	void	cn_grab_t(struct consdev *);
+typedef	void	cn_ungrab_t(struct consdev *);
+typedef	int	cn_getc_t(struct consdev *);
+typedef	void	cn_putc_t(struct consdev *, int);
+
+struct consdev_ops {
+	cn_probe_t	*cn_probe;
+				/* probe hardware and fill in consdev info */
+	cn_init_t	*cn_init;
+				/* turn on as console */
+	cn_term_t	*cn_term;
+				/* turn off as console */
+	cn_getc_t	*cn_getc;
+				/* kernel getchar interface */
+	cn_putc_t	*cn_putc;
+				/* kernel putchar interface */
+	cn_grab_t	*cn_grab;
+				/* grab console for exclusive kernel use */
+	cn_ungrab_t	*cn_ungrab;
+				/* ungrab console */
+};
+
+struct consdev {
+	const struct consdev_ops *cn_ops;
+				/* console device operations. */
+	short	cn_pri;		/* pecking order; the higher the better */
+	void	*cn_arg;	/* drivers method argument */
+	int	cn_flags;	/* capabilities of this console */
+	char	cn_name[SPECNAMELEN + 1];	/* console (device) name */
+};
+
+/* values for cn_pri - reflect our policy for console selection */
+#define	CN_DEAD		0	/* device doesn't exist */
+#define CN_LOW		1	/* device is a last restort only */
+#define CN_NORMAL	2	/* device exists but is nothing special */
+#define CN_INTERNAL	3	/* "internal" bit-mapped display */
+#define CN_REMOTE	4	/* serial interface with remote bit set */
+
+/* Values for cn_flags. */
+#define	CN_FLAG_NODEBUG	0x00000001	/* Not supported with debugger. */
+#define	CN_FLAG_NOAVAIL	0x00000002	/* Temporarily not available. */
+
+/* Visibility of characters in cngets() */
+#define	GETS_NOECHO	0	/* Disable echoing of characters. */
+#define	GETS_ECHO	1	/* Enable echoing of characters. */
+#define	GETS_ECHOPASS	2	/* Print a * for every character. */
+
+#ifdef _KERNEL
+
+extern	struct msgbuf consmsgbuf; /* Message buffer for constty. */
+extern	struct tty *constty;	/* Temporary virtual console. */
+
+#define	CONSOLE_DEVICE(name, ops, arg)					\
+	static struct consdev name = {					\
+		.cn_ops = &ops,						\
+		.cn_arg = (arg),					\
+	};								\
+	DATA_SET(cons_set, name)
+
+#define	CONSOLE_DRIVER(name)						\
+	static const struct consdev_ops name##_consdev_ops = {		\
+		.cn_probe = name##_cnprobe,				\
+		.cn_init = name##_cninit,				\
+		.cn_term = name##_cnterm,				\
+		.cn_getc = name##_cngetc,				\
+		.cn_putc = name##_cnputc,				\
+		.cn_grab = name##_cngrab,				\
+		.cn_ungrab = name##_cnungrab,				\
+	};								\
+	CONSOLE_DEVICE(name##_consdev, name##_consdev_ops, NULL)
+
+/* Other kernel entry points. */
+void	cninit(void);
+void	cninit_finish(void);
+int	cnadd(struct consdev *);
+void	cnavailable(struct consdev *, int);
+void	cnremove(struct consdev *);
+void	cnselect(struct consdev *);
+void	cngrab(void);
+void	cnungrab(void);
+int	cncheckc(void);
+int	cngetc(void);
+void	cngets(char *, size_t, int);
+void	cnputc(int);
+void	cnputs(char *);
+int	cnunavailable(void);
+void	constty_set(struct tty *tp);
+void	constty_clear(void);
+
+/* sc(4) / vt(4) coexistence shim */
+#define	VTY_SC 0x01
+#define	VTY_VT 0x02
+int	vty_enabled(unsigned int);
+void	vty_set_preferred(unsigned int);
+
+#endif /* _KERNEL */
+
+#endif /* !_MACHINE_CONS_H_ */
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_ */