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      1 /*	$NetBSD: umct.h,v 1.2 2008/04/28 20:24:00 martin Exp $	*/
      2 /*
      3  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to The NetBSD Foundation
      7  * by Ichiro FUKUHARA (ichiro (at) ichiro.org).
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 /*
     32  * Vendor Request Interface
     33  */
     34 #define UMCT_SET_REQUEST	0x40
     35 #define UMCT_GET_REQUEST	0xc0
     36 
     37 #define REQ_SET_BAUD_RATE	5	/* Set Baud Rate Divisor */
     38 #define LENGTH_BAUD_RATE	4
     39 
     40 #define REQ_GET_MSR		2	/* Get Modem Status Register (MSR) */
     41 #define LENGTH_GET_MSR		1
     42 
     43 #define REQ_GET_LCR		6	/* Get Line Control Register (LCR) */
     44 #define LENGTH_GET_LCR		1
     45 
     46 #define REQ_SET_LCR		7	/* Set Line Control Register (LCR) */
     47 #define LENGTH_SET_LCR		1
     48 
     49 #define REQ_SET_MCR		10	/* Set Modem Control Register (MCR) */
     50 #define LENGTH_SET_MCR		1
     51 
     52 /*
     53  * Baud rate (divisor)
     54  */
     55 #define UMCT_BAUD_RATE(b)	(115200/b)
     56 
     57 /*
     58  * Line Control Register (LCR)
     59  */
     60 #define LCR_SET_BREAK		0x40
     61 #define LCR_PARITY_EVEN		0x18
     62 #define LCR_PARITY_ODD		0x08
     63 #define LCR_PARITY_NONE		0x00
     64 #define LCR_DATA_BITS_5		0x00
     65 #define LCR_DATA_BITS_6		0x01
     66 #define LCR_DATA_BITS_7		0x02
     67 #define LCR_DATA_BITS_8		0x03
     68 #define LCR_STOP_BITS_2		0x04
     69 #define LCR_STOP_BITS_1		0x00
     70 
     71 /*
     72  * Modem Control Register (MCR)
     73  */
     74 #define MCR_NONE		0x8
     75 #define MCR_RTS			0xa
     76 #define MCR_DTR			0x9
     77 
     78 /*
     79  * Modem Status Register (MSR)
     80  */
     81 #define MSR_CD			0x80	/* Current CD */
     82 #define MSR_RI			0x40	/* Current RI */
     83 #define MSR_DSR			0x20	/* Current DSR */
     84 #define MSR_CTS			0x10	/* Current CTS */
     85 #define MSR_DCD			0x08	/* Delta CD */
     86 #define MSR_DRI			0x04	/* Delta RI */
     87 #define MSR_DDSR		0x02	/* Delta DSR */
     88 #define MSR_DCTS		0x01	/* Delta CTS */
     89 
     90 /*
     91  * Line Status Register (LSR)
     92  */
     93 #define LSR_ERR			0x80	/* OE | PE | FE | BI */
     94 #define LSR_TEMT		0x40	/* transmit register empty */
     95 #define LSR_THRE		0x20	/* transmit holding register empty */
     96 #define LSR_BI			0x10	/* break indicator */
     97 #define LSR_FE			0x08	/* framing error */
     98 #define LSR_OE			0x02	/* overrun error */
     99 #define LSR_PE			0x04	/* parity error */
    100 #define LSR_OE			0x02	/* overrun error */
    101 #define LSR_DR			0x01	/* receive data ready */
    102