Submitted by: Luigi Rizzo (luigi@iet.unipi.it)

Obtained from: Luigi Rizzo and Gunther Schadow
Kernel support for the asc scanner driver

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)