1 /* $NetBSD: ssvar.h,v 1.19 2012/02/28 11:41:00 mbalmer Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Kenneth Stailey. All rights reserved. 5 * modified for configurable scanner support by Joachim Koenig 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 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 Kenneth Stailey. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * SCSI scanner interface description 35 */ 36 37 /* 38 * Special handlers for impractically different scanner types. 39 * Register NULL for a function if you want to try the real SCSI code 40 * (with quirks table) 41 */ 42 struct ss_softc; 43 struct scan_io; 44 45 struct ss_special { 46 int (*set_params)(struct ss_softc *, struct scan_io *); 47 int (*trigger_scanner)(struct ss_softc *); 48 int (*get_params)(struct ss_softc *); 49 /* some scanners only send line-multiples */ 50 void (*minphys)(struct ss_softc *, struct buf *); 51 int (*read)(struct ss_softc *, struct buf *); 52 int (*rewind_scanner)(struct ss_softc *); 53 int (*load_adf)(struct ss_softc *); 54 int (*unload_adf)(struct ss_softc *); 55 }; 56 57 /* 58 * ss_softc has to be declared here, because the device dependent 59 * modules include it 60 */ 61 struct ss_softc { 62 device_t sc_dev; 63 64 int flags; 65 #define SSF_TRIGGERED 0x01 /* read operation has been primed */ 66 #define SSF_LOADED 0x02 /* parameters loaded */ 67 #define SSF_AUTOCONF 0x04 /* set during auto-configuration */ 68 struct scsipi_periph *sc_periph; /* contains our targ, lun, etc. */ 69 struct scan_io sio; 70 struct bufq_state *buf_queue; /* the queue of pending IO operations */ 71 struct callout sc_callout; /* to restart the buf queue */ 72 u_int quirks; /* scanner is only mildly twisted */ 73 #define SS_Q_GET_BUFFER_SIZE 0x0001 /* poll for available data in ssread()*/ 74 /* truncate to byte boundary is assumed by default unless one of these is set */ 75 #define SS_Q_PAD_TO_BYTE 0x0002 /* pad monochrome data to byte boundary */ 76 #define SS_Q_PAD_TO_WORD 0x0004 /* pad monochrome data to word boundary */ 77 #define SS_Q_THRESHOLD_FOLLOWS_BRIGHTNESS 0x0008 78 struct ss_special *special; /* special handlers for spec. devices */ 79 }; 80 81 void ssrestart(void *); 82 83 /* 84 * define the special attach routines if configured 85 */ 86 void mustek_attach(struct ss_softc *, struct scsipibus_attach_args *); 87 void scanjet_attach(struct ss_softc *, struct scsipibus_attach_args *); 88