/*      $NetBSD: umct.h,v 1.2 2008/04/28 20:24:00 martin Exp $  */
/*
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ichiro FUKUHARA ([email protected]).
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/

/*
* Vendor Request Interface
*/
#define UMCT_SET_REQUEST        0x40
#define UMCT_GET_REQUEST        0xc0

#define REQ_SET_BAUD_RATE       5       /* Set Baud Rate Divisor */
#define LENGTH_BAUD_RATE        4

#define REQ_GET_MSR             2       /* Get Modem Status Register (MSR) */
#define LENGTH_GET_MSR          1

#define REQ_GET_LCR             6       /* Get Line Control Register (LCR) */
#define LENGTH_GET_LCR          1

#define REQ_SET_LCR             7       /* Set Line Control Register (LCR) */
#define LENGTH_SET_LCR          1

#define REQ_SET_MCR             10      /* Set Modem Control Register (MCR) */
#define LENGTH_SET_MCR          1

/*
* Baud rate (divisor)
*/
#define UMCT_BAUD_RATE(b)       (115200/b)

/*
* Line Control Register (LCR)
*/
#define LCR_SET_BREAK           0x40
#define LCR_PARITY_EVEN         0x18
#define LCR_PARITY_ODD          0x08
#define LCR_PARITY_NONE         0x00
#define LCR_DATA_BITS_5         0x00
#define LCR_DATA_BITS_6         0x01
#define LCR_DATA_BITS_7         0x02
#define LCR_DATA_BITS_8         0x03
#define LCR_STOP_BITS_2         0x04
#define LCR_STOP_BITS_1         0x00

/*
* Modem Control Register (MCR)
*/
#define MCR_NONE                0x8
#define MCR_RTS                 0xa
#define MCR_DTR                 0x9

/*
* Modem Status Register (MSR)
*/
#define MSR_CD                  0x80    /* Current CD */
#define MSR_RI                  0x40    /* Current RI */
#define MSR_DSR                 0x20    /* Current DSR */
#define MSR_CTS                 0x10    /* Current CTS */
#define MSR_DCD                 0x08    /* Delta CD */
#define MSR_DRI                 0x04    /* Delta RI */
#define MSR_DDSR                0x02    /* Delta DSR */
#define MSR_DCTS                0x01    /* Delta CTS */

/*
* Line Status Register (LSR)
*/
#define LSR_ERR                 0x80    /* OE | PE | FE | BI */
#define LSR_TEMT                0x40    /* transmit register empty */
#define LSR_THRE                0x20    /* transmit holding register empty */
#define LSR_BI                  0x10    /* break indicator */
#define LSR_FE                  0x08    /* framing error */
#define LSR_OE                  0x02    /* overrun error */
#define LSR_PE                  0x04    /* parity error */
#define LSR_OE                  0x02    /* overrun error */
#define LSR_DR                  0x01    /* receive data ready */