1 /* ascreg.h - port and bit definitions for the GI-1904 interface
3 * Copyright (c) 1995 Gunther Schadow. All rights reserved.
4 * Copyright (c) 1995 Luigi Rizzo. All rights reserved.
5 * Copyright (c) 2008 The DragonFly Project.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Gunther Schadow.
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 * $FreeBSD: src/sys/i386/isa/ascreg.h,v 1.5 1999/08/28 00:44:37 peter Exp $
36 * $DragonFly: src/sys/platform/pc64/isa/ascreg.h,v 1.1 2008/08/29 17:07:19 dillon Exp $
39 /*** Registers (base=3EB): ************/
40 #define ASC_CFG (scu->base)
41 /*** ASC_CFG 3EB: configuration register. Write only, mirror in RAM
43 *** - - I_5 I_3 I10 D_3 - D_1
45 /*** #define ASC_CNF_MASK 0x3D */ /* was 0x5a */
46 #define ASC_CNF_DMA1 0x01 /* was (~0x02 & ASC_CNF_MASK) */
47 #define ASC_CNF_DMA3 0x04 /* was (~0x08 & ASC_CNF_MASK) */
48 #define ASC_CNF_IRQ3 0x10 /* was (~0x10 & ASC_CNF_MASK) */
49 #define ASC_CNF_IRQ5 0x20 /* was (~0x40 & ASC_CNF_MASK) */
50 #define ASC_CNF_IRQ10 0x08 /* was (~0x40 & ASC_CNF_MASK) */
52 /*** ASC_STAT 3EC: command/status; rw, mirror in ram
55 *** [<-- Resolution -->] 13h,10h,0eh,0ch,09h, 07h, 04h, 02h
57 #define ASC_STAT (scu->base + 1)
59 #define ASC_RDY_FLAG 0x80
60 #define ASC_RES_MASK 0x3f
61 #define ASC_RES_800 0x13
62 #define ASC_RES_700 0x10
63 #define ASC_RES_600 0x0e
64 #define ASC_RES_500 0x0c
65 #define ASC_RES_400 0x09 /* 0x00 */
66 #define ASC_RES_300 0x07 /* 0x04 */
67 #define ASC_RES_200 0x04 /* 0x20 */
68 #define ASC_RES_100 0x02 /* 0x24 */
70 /*** ASC_CMD 3EC: command/status; rw, mirror in ram
71 *** W: 7 6 5 4 3 2 1 0
73 *** b0: 1: light on & get resolution, 0: light off
74 *** b1: 0: load scan len (sub_16, with b4=1, b7=1)
75 *** b2: 1/0 : dma stuff
76 *** b3: 0/1 : dma stuff
77 *** b4: 1 : load scan len (sub_16, with b1=0, b7=1)
80 *** b7: ? : set at beginning of sub_16
82 #define ASC_CMD (scu->base + 1)
84 #define ASC_LIGHT_ON 0x01
85 #define ASC_SET_B2 0x04
86 #define ASC_OPERATE 0x91 /* from linux driver... */
87 #define ASC_STANDBY 0x05 /* from linux driver... */
89 /*** ASC_LEN_L, ASC_LEN_H 3ED, 3EE: transfer length, lsb first ***/
90 #define ASC_LEN_L ((scu->base)+2)
91 #define ASC_LEN_H ((scu->base)+3)
93 /*** 3EE ASC_PROBE (must read ASC_PROBE_VALUE) ***/
94 #define ASC_PROBE ((scu->base)+3)
95 #define ASC_PROBE_VALUE 0xA5
97 /*** ASC_BOH 3EF: always write 0 at the moment, read some values ? ***/
98 #define ASC_BOH ((scu->base)+4)