mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-29 12:03:03 +00:00
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
/* gscreg.h - port and bit definitions for the Genius GS-4500 interface
|
|
*
|
|
*
|
|
* Copyright (c) 1995 Gunther Schadow. 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 Gunther Schadow.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
|
|
*/
|
|
|
|
/*
|
|
* status register (r)
|
|
*/
|
|
|
|
/* the DMA/IRQ jumper configuration */
|
|
|
|
#define GSC_CNF_MASK 0x5a
|
|
|
|
#define GSC_CNF_DMA1 (~0x02 & GSC_CNF_MASK)
|
|
#define GSC_CNF_DMA3 (~0x08 & GSC_CNF_MASK)
|
|
#define GSC_CNF_IRQ3 (~0x10 & GSC_CNF_MASK)
|
|
#define GSC_CNF_IRQ5 (~0x40 & GSC_CNF_MASK)
|
|
|
|
/* the resolution switch setting */
|
|
|
|
#define GSC_RES_MASK 0x24
|
|
|
|
#define GSC_RES_400 0x00
|
|
#define GSC_RES_300 0x04
|
|
#define GSC_RES_200 0x20
|
|
#define GSC_RES_100 0x24
|
|
|
|
/* other flags */
|
|
|
|
#define GSC_RDY_FLAG 0x80
|
|
|
|
#define GSC_IRQ_FLAG 0x01
|
|
|
|
/*
|
|
* control register (w)
|
|
*/
|
|
|
|
/* power on */
|
|
|
|
#define GSC_POWER_ON 0x01
|
|
|
|
/* pixel per line count */
|
|
|
|
#define GSC_CNT_MASK 0xf0
|
|
|
|
#define GSC_CNT_3648 0x30
|
|
#define GSC_CNT_2544 0x90
|
|
#define GSC_CNT_1696 0xb0
|
|
#define GSC_CNT_1648 0xe0
|
|
#define GSC_CNT_1264 0x80
|
|
#define GSC_CNT_840 0xa0
|
|
#define GSC_CNT_424 0xf0
|
|
|
|
/*
|
|
* port addresses
|
|
*/
|
|
|
|
#define GSC_DATA(iob) (iob + (iob == 0x270 ? 0x02 : 0x01))
|
|
#define GSC_STAT(iob) (iob + (iob == 0x270 ? 0x03 : 0x02))
|
|
#define GSC_CTRL(iob) (iob + (iob == 0x270 ? 0x0a : 0x03))
|
|
#define GSC_CLRP(iob) (iob + (iob == 0x270 ? 0x0b : 0x04))
|