Add our doscmd to the tree. This is a result of work from BSDI, and

a group of dos emulator developers.
Submitted by:	Jonathan Lemon <jlemon@americantv.com>
Obtained from:	BSDI

1 files changed, 167 insertions, 0 deletions

diff --git a/usr.bin/doscmd/com.h b/usr.bin/doscmd/com.h
new file mode 100644
index 0000000..c2857e2
--- /dev/null
+++ b/usr.bin/doscmd/com.h
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 1992, 1993, 1996
+ *	Berkeley Software Design, Inc.  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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Berkeley Software
+ *	Design, Inc.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``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 Berkeley Software Design, Inc. 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.
+ *
+ *	BSDI com.h,v 2.2 1996/04/08 19:32:21 bostic Exp
+ *
+ * $Id: com.h,v 1.3 1996/09/22 15:42:48 miff Exp $
+ */
+
+/* com.h for doscmd int14.c */
+
+#define	BUFSIZE 1024
+
+/* NS16550A register definitions */
+
+/* interrupt enable register */
+
+#define	IE_NOP		0xF0	/* not used */
+#define	IE_MODEM_STAT	0x08	/* modem status int. */
+#define	IE_LINE_STAT	0x04	/* receiver-line status int. */
+#define	IE_TRANS_HLD	0x02	/* transmitter holding register empty int. */
+#define	IE_RCV_DATA	0x01	/* received data available int. */
+
+/* interrupt identification register */
+
+#define	II_FIFOS_EN	0xC0	/* if FIFOs are enabled */
+#define	II_NOP		0x38	/* not used */
+#define	II_INT_ID	0x06	/* mask: bits see below */
+#define	II_PEND_INT	0x01	/* 1=no interrupt pending */
+
+/* bit masks for II_INT_ID */
+
+#define	II_LINE_STAT	0x06
+#define	II_RCV_DATA	0x04
+#define	II_TRANS_HLD	0x02
+#define	II_MODEM_STAT	0x00
+
+/* FIFO control reg */
+
+#define	FC_FIFO_EN	0x01
+
+/* line control register */
+
+#define	LC_DIV_ACC	0x80	/* divisor latch access bit */
+#define	LC_BRK_CTRL	0x40	/* set break control */
+#define	LC_S_PAR	0x20	/* stick parity */
+#define	LC_EVEN_P	0x10	/* even parity select */
+#define	LC_PAR_E	0x08	/* parity enable */
+#define	LC_STOP_B	0x04	/* number of stop bits (0 - 1 bit) */
+#define	LC_W_LEN	0x03	/* unsigned short length (00 - 5, 01 - 6 etc.) */
+
+/* line status register */
+
+#define	LS_NOP		0x80	/* not used */
+#define	LS_X_SHFT_E	0x40	/* 0=data transfer, 1=transmitter idle */
+#define	LS_X_HOLD_E	0x20	/* 0=ready, 1=transferring character */
+#define	LS_BREAK	0x10	/* break received */
+#define	LS_FRM_ERR	0x08	/* framing error */
+#define	LS_PAR_ERR	0x04	/* parity error */
+#define	LS_OVRN_ERR	0x02	/* overrun error */
+#define	LS_RCV_DATA_RD	0x01	/* data received */
+
+/* modem status register */
+
+#define	MS_DCD		0x80	/* Data Carrier Detect in */
+#define	MS_RI		0x40	/* Ring Indicator in */
+#define	MS_DSR		0x20	/* Data Set Ready in */
+#define	MS_CTS		0x10	/* Clear To Send in */
+#define	MS_DELTA_DCD	0x08	/* Data Carrier Detect changed state */
+#define	MS_DELTA_RI	0x04	/* Ring Indicator changed state */
+#define	MS_DELTA_DSR	0x02	/* Data Set Ready changed state */
+#define	MS_DELTA_CTS	0x01	/* Clear To Send changed state */
+
+/* data structure definitions */
+
+#define	N_OF_COM_REGS	8
+
+struct com_data_struct {
+	int		fd;		/* BSD/386 file descriptor */
+	char		*path;		/* BSD/386 pathname */
+	int		addr;		/* ISA I/O address */
+	unsigned char	irq;		/* ISA IRQ */
+	unsigned char	flags;		/* some general software flags */
+
+	struct queue	*com_queue;	/* XXX DEBUG obsolete MCL? */
+
+	unsigned char	div_latch[2];	/* mirror of 16550 R0':R1' read/write */
+	unsigned char	last_char_read;	/* mirror of 16550 R0 read only */
+	unsigned char	int_enable;	/* mirror of 16550 R1 read/write */
+	unsigned char	int_id;		/* mirror of 16550 R2 read only */
+	unsigned char	fifo_ctrl;	/* mirror of 16550 R2 write only */
+	unsigned char	line_ctrl;	/* mirror of 16550 R3 read/write */
+	unsigned char	modem_ctrl;	/* mirror of 16550 R4 read/write */
+	unsigned char	line_stat;	/* mirror of 16550 R5 read/write */
+	unsigned char	modem_stat;	/* mirror of 16550 R6 read/write */
+	unsigned char	uart_spare;	/* mirror of 16550 R7 read/write */
+};
+
+/* DOS definitions -- parameters */
+
+#define	BITRATE_110	0x00
+#define	BITRATE_150	0x20
+#define	BITRATE_300	0x40
+#define	BITRATE_600	0x60
+#define	BITRATE_1200	0x80
+#define	BITRATE_2400	0xA0
+#define	BITRATE_4800	0xC0
+#define	BITRATE_9600	0xE0
+#define	PARITY_NONE	0x00
+#define	PARITY_ODD	0x08
+#define	PARITY_EVEN	0x18
+#define	STOPBIT_1	0x00
+#define	STOPBIT_2	0x04
+#define	TXLEN_7BITS	0x02
+#define	TXLEN_8BITS	0x03
+
+/* DOS definitions -- return codes */
+
+#define	LS_SW_TIME_OUT	LS_NOP	/* return value used by DOS */
+
+/* miscellaneous definitions */
+
+#define	DIV_LATCH_LOW	0
+#define	DIV_LATCH_HIGH	1
+
+#define	DIV_LATCH_LOW_WRITTEN	0x01
+#define	DIV_LATCH_HIGH_WRITTEN	0x02
+#define	DIV_LATCH_BOTH_WRITTEN	0x03
+
+/* variable declarations */
+
+extern int errno;
+
+/* routine declarations */
+
+extern void	int14(regcontext_t *REGS);
+extern void	com_set_line(struct com_data_struct *, unsigned char, unsigned char);
+extern void	init_com(int, char *, int, unsigned char);
+extern u_char	com_port_in(int);
+extern void	com_port_out(int, unsigned char);
+
+/* end of file com.h */