diff options
Diffstat (limited to 'sys/i386/isa/ascreg.h')
-rw-r--r-- | sys/i386/isa/ascreg.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/sys/i386/isa/ascreg.h b/sys/i386/isa/ascreg.h new file mode 100644 index 0000000..1b8c5d3 --- /dev/null +++ b/sys/i386/isa/ascreg.h @@ -0,0 +1,92 @@ +/* ascreg.h - port and bit definitions for the GI-1904 interface + * + * Copyright (c) 1995 Gunther Schadow. All rights reserved. + * Copyright (c) 1995 Luigi Rizzo. 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. + * and Luigi Rizzo + * 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. + */ + + /*** Registers (base=3EB): ************/ +#define ASC_CFG (scu->base) + /*** ASC_CFG 3EB: configuration register. Write only, mirror in RAM + *** 7 6 5 4 3 2 1 0 + *** - - I_5 I_3 I10 D_3 - D_1 + ***/ + /*** #define ASC_CNF_MASK 0x3D */ /* was 0x5a */ +#define ASC_CNF_DMA1 0x01 /* was (~0x02 & ASC_CNF_MASK) */ +#define ASC_CNF_DMA3 0x04 /* was (~0x08 & ASC_CNF_MASK) */ +#define ASC_CNF_IRQ3 0x10 /* was (~0x10 & ASC_CNF_MASK) */ +#define ASC_CNF_IRQ5 0x20 /* was (~0x40 & ASC_CNF_MASK) */ +#define ASC_CNF_IRQ10 0x08 /* was (~0x40 & ASC_CNF_MASK) */ + + /*** ASC_STAT 3EC: command/status; rw, mirror in ram + *** 7 6 5 4 3 2 1 0 + *** BSY - - - - - - - + *** [<-- Resolution -->] 13h,10h,0eh,0ch,09h, 07h, 04h, 02h + ***/ +#define ASC_STAT (scu->base + 1) + +#define ASC_RDY_FLAG 0x80 +#define ASC_RES_MASK 0x3f +#define ASC_RES_800 0x13 +#define ASC_RES_700 0x10 +#define ASC_RES_600 0x0e +#define ASC_RES_500 0x0c +#define ASC_RES_400 0x09 /* 0x00 */ +#define ASC_RES_300 0x07 /* 0x04 */ +#define ASC_RES_200 0x04 /* 0x20 */ +#define ASC_RES_100 0x02 /* 0x24 */ + + /*** ASC_CMD 3EC: command/status; rw, mirror in ram + *** W: 7 6 5 4 3 2 1 0 + *** . - - . . . . . + *** b0: 1: light on & get resolution, 0: light off + *** b1: 0: load scan len (sub_16, with b4=1, b7=1) + *** b2: 1/0 : dma stuff + *** b3: 0/1 : dma stuff + *** b4: 1 : load scan len (sub_16, with b1=0, b7=1) + *** b5: ? + *** b6: ? + *** b7: ? : set at beginning of sub_16 + ***/ +#define ASC_CMD (scu->base + 1) + +#define ASC_LIGHT_ON 0x01 +#define ASC_SET_B2 0x04 +#define ASC_OPERATE 0x91 /* from linux driver... */ +#define ASC_STANDBY 0x05 /* from linux driver... */ + + /*** ASC_LEN_L, ASC_LEN_H 3ED, 3EE: transfer length, lsb first ***/ +#define ASC_LEN_L ((scu->base)+2) +#define ASC_LEN_H ((scu->base)+3) + + /*** 3EE ASC_PROBE (must read ASC_PROBE_VALUE) ***/ +#define ASC_PROBE ((scu->base)+3) +#define ASC_PROBE_VALUE 0xA5 + + /*** ASC_BOH 3EF: always write 0 at the moment, read some values ? ***/ +#define ASC_BOH ((scu->base)+4) |