/*
* Copyright (c) 1995 Kenneth Stailey. All rights reserved.
* modified for configurable scanner support by Joachim Koenig
*
* 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 Kenneth Stailey.
* 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.
*/
/*
* SCSI scanner interface description
*/
/*
* Special handlers for impractically different scanner types.
* Register NULL for a function if you want to try the real SCSI code
* (with quirks table)
*/
struct ss_softc;
struct scan_io;
struct ss_special {
int (*set_params)(struct ss_softc *, struct scan_io *);
int (*trigger_scanner)(struct ss_softc *);
int (*get_params)(struct ss_softc *);
/* some scanners only send line-multiples */
void (*minphys)(struct ss_softc *, struct buf *);
int (*read)(struct ss_softc *, struct buf *);
int (*rewind_scanner)(struct ss_softc *);
int (*load_adf)(struct ss_softc *);
int (*unload_adf)(struct ss_softc *);
};
/*
* ss_softc has to be declared here, because the device dependent
* modules include it
*/
struct ss_softc {
device_t sc_dev;
int flags;
#define SSF_TRIGGERED 0x01 /* read operation has been primed */
#define SSF_LOADED 0x02 /* parameters loaded */
#define SSF_AUTOCONF 0x04 /* set during auto-configuration */
struct scsipi_periph *sc_periph; /* contains our targ, lun, etc. */
struct scan_io sio;
struct bufq_state *buf_queue; /* the queue of pending IO operations */
struct callout sc_callout; /* to restart the buf queue */
u_int quirks; /* scanner is only mildly twisted */
#define SS_Q_GET_BUFFER_SIZE 0x0001 /* poll for available data in ssread()*/
/* truncate to byte boundary is assumed by default unless one of these is set */
#define SS_Q_PAD_TO_BYTE 0x0002 /* pad monochrome data to byte boundary */
#define SS_Q_PAD_TO_WORD 0x0004 /* pad monochrome data to word boundary */
#define SS_Q_THRESHOLD_FOLLOWS_BRIGHTNESS 0x0008
struct ss_special *special; /* special handlers for spec. devices */
};
void ssrestart(void *);
/*
* define the special attach routines if configured
*/
void mustek_attach(struct ss_softc *, struct scsipibus_attach_args *);
void scanjet_attach(struct ss_softc *, struct scsipibus_attach_args *);
