/*
 * Driver for USB Scanners (linux-2.6)
 *
 * Copyright (C) 1999, 2000, 2001, 2002 David E. Nelson
 * Previously maintained by Brian Beattie
 *
 * Current maintainer: Henning Meier-Geinitz <henning@meier-geinitz.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */ 

/*
 * For documentation, see Documentation/usb/scanner.txt.
 * Website: http://www.meier-geinitz.de/kernel/
 * Please contact the maintainer if your scanner is not detected by this
 * driver automatically.
 */


#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <asm/uaccess.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/ioctl.h>
#include <linux/sched.h>
#include <linux/smp_lock.h>

// #define DEBUG

#define DRIVER_VERSION "0.4.16"
#define DRIVER_DESC "USB Scanner Driver"

#include <linux/usb.h>

static __s32 vendor=-1, product=-1, read_timeout=0;

MODULE_AUTHOR("Henning Meier-Geinitz, henning@meier-geinitz.de");
MODULE_DESCRIPTION(DRIVER_DESC" "DRIVER_VERSION);
MODULE_LICENSE("GPL");

MODULE_PARM(vendor, "i");
MODULE_PARM_DESC(vendor, "User specified USB idVendor");

MODULE_PARM(product, "i");
MODULE_PARM_DESC(product, "User specified USB idProduct");

MODULE_PARM(read_timeout, "i");
MODULE_PARM_DESC(read_timeout, "User specified read timeout in seconds");


/* WARNING: These DATA_DUMP's can produce a lot of data. Caveat Emptor. */
// #define RD_DATA_DUMP /* Enable to dump data - limited to 24 bytes */
// #define WR_DATA_DUMP /* DEBUG does not have to be defined. */

static struct usb_device_id scanner_device_ids [] = {
	/* Acer (now Benq) */
	{ USB_DEVICE(0x04a5, 0x1a20) },	/* Prisa 310U */
	{ USB_DEVICE(0x04a5, 0x1a2a) },	/* Another 620U */
	{ USB_DEVICE(0x04a5, 0x2022) },	/* 340U */
	{ USB_DEVICE(0x04a5, 0x2040) },	/* 620U (!) */
	{ USB_DEVICE(0x04a5, 0x2060) },	/* 620U & 640U (!)*/
	{ USB_DEVICE(0x04a5, 0x207e) },	/* 640BU */
	{ USB_DEVICE(0x04a5, 0x20b0) },	/* Benq 4300 */
	{ USB_DEVICE(0x04a5, 0x20be) },	/* Unknown - Oliver Schwartz */
	{ USB_DEVICE(0x04a5, 0x20c0) }, /* 1240UT, 1240U */
	{ USB_DEVICE(0x04a5, 0x20de) },	/* S2W 3300U */
	{ USB_DEVICE(0x04a5, 0x20fc) }, /* Benq 5000 */
	{ USB_DEVICE(0x04a5, 0x20fe) },	/* Benq 5300 */
	/* Agfa */
	{ USB_DEVICE(0x06bd, 0x0001) },	/* SnapScan 1212U */
	{ USB_DEVICE(0x06bd, 0x0002) },	/* SnapScan 1236U */
	{ USB_DEVICE(0x06bd, 0x0100) },	/* SnapScan Touch */
	{ USB_DEVICE(0x06bd, 0x2061) },	/* Another SnapScan 1212U (?)*/
	{ USB_DEVICE(0x06bd, 0x208d) }, /* Snapscan e40 */
	{ USB_DEVICE(0x06bd, 0x208f) }, /* SnapScan e50*/
	{ USB_DEVICE(0x06bd, 0x2091) }, /* SnapScan e20 */
	{ USB_DEVICE(0x06bd, 0x2093) }, /* SnapScan e10*/
	{ USB_DEVICE(0x06bd, 0x2095) }, /* SnapScan e25 */
	{ USB_DEVICE(0x06bd, 0x2097) }, /* SnapScan e26 */
	{ USB_DEVICE(0x06bd, 0x20fd) }, /* SnapScan e52*/
	{ USB_DEVICE(0x06bd, 0x20ff) }, /* SnapScan e42*/
	/* Artec */
	{ USB_DEVICE(0x05d8, 0x4001) },	/* Ultima 2000 */
	{ USB_DEVICE(0x05d8, 0x4002) }, /* Ultima 2000 (GT6801 based) */
	{ USB_DEVICE(0x05d8, 0x4003) }, /* E+ 48U */
	{ USB_DEVICE(0x05d8, 0x4004) }, /* E+ Pro */
	/* Avision */
	{ USB_DEVICE(0x0638, 0x0268) }, /* iVina 1200U */
	{ USB_DEVICE(0x0638, 0x0a10) },	/* iVina FB1600 (=Umax Astra 4500) */
	{ USB_DEVICE(0x0638, 0x0a20) }, /* iVina FB1800 (=Umax Astra 4700) */
	/* Benq: see Acer */
	/* Brother */
	{ USB_DEVICE(0x04f9, 0x010f) },	/* MFC 5100C */
	{ USB_DEVICE(0x04f9, 0x0111) },	/* MFC 6800 */
	/* Canon */
	{ USB_DEVICE(0x04a9, 0x2201) }, /* CanoScan FB320U */
	{ USB_DEVICE(0x04a9, 0x2202) }, /* CanoScan FB620U */
	{ USB_DEVICE(0x04a9, 0x2204) }, /* CanoScan FB630U/FB636U */
	{ USB_DEVICE(0x04a9, 0x2205) }, /* CanoScan FB1210U */
	{ USB_DEVICE(0x04a9, 0x2206) }, /* CanoScan N650U/N656U */
	{ USB_DEVICE(0x04a9, 0x2207) }, /* CanoScan N1220U */
	{ USB_DEVICE(0x04a9, 0x2208) }, /* CanoScan D660U */ 
	{ USB_DEVICE(0x04a9, 0x220a) },	/* CanoScan D2400UF */
	{ USB_DEVICE(0x04a9, 0x220b) }, /* CanoScan D646U */
	{ USB_DEVICE(0x04a9, 0x220c) },	/* CanoScan D1250U2 */
	{ USB_DEVICE(0x04a9, 0x220d) }, /* CanoScan N670U/N676U/LIDE 20 */
	{ USB_DEVICE(0x04a9, 0x220e) }, /* CanoScan N1240U/LIDE 30 */
	{ USB_DEVICE(0x04a9, 0x220f) },	/* CanoScan 8000F */
	{ USB_DEVICE(0x04a9, 0x2210) },	/* CanoScan 9900F */
	{ USB_DEVICE(0x04a9, 0x2212) },	/* CanoScan 5000F */
	{ USB_DEVICE(0x04a9, 0x2213) },	/* LIDE 50 */
	{ USB_DEVICE(0x04a9, 0x2215) },	/* CanoScan 3000 */
	{ USB_DEVICE(0x04a9, 0x3042) }, /* FS4000US */
	/* Colorado -- See Primax/Colorado below */
	/* Compaq */
	{ USB_DEVICE(0x049f, 0x001a) },	/* S4 100 */
	{ USB_DEVICE(0x049f, 0x0021) },	/* S200 */
	/* Epson -- See Seiko/Epson below */
	/* Fujitsu */
	{ USB_DEVICE(0x04c5, 0x1041) }, /* fi-4220c USB/SCSI info:mza@mu-tec.de */
	{ USB_DEVICE(0x04c5, 0x1042) }, /* fi-4120c USB/SCSI info:mza@mu-tec.de */
	{ USB_DEVICE(0x04c5, 0x1029) }, /* fi-4010c USB AVision info:mza@mu-tec.de */
	/* Genius */
	{ USB_DEVICE(0x0458, 0x2001) },	/* ColorPage Vivid Pro */
	{ USB_DEVICE(0x0458, 0x2007) },	/* ColorPage HR6 V2 */
	{ USB_DEVICE(0x0458, 0x2008) }, /* ColorPage HR6 V2 */
	{ USB_DEVICE(0x0458, 0x2009) }, /* ColorPage HR6A */
	{ USB_DEVICE(0x0458, 0x2011) }, /* ColorPage Vivid3x */
	{ USB_DEVICE(0x0458, 0x2013) }, /* ColorPage HR7 */
	{ USB_DEVICE(0x0458, 0x2015) }, /* ColorPage HR7LE */
	{ USB_DEVICE(0x0458, 0x2016) }, /* ColorPage HR6X */
	{ USB_DEVICE(0x0458, 0x2018) },	/* ColorPage HR7X */
	{ USB_DEVICE(0x0458, 0x201b) },	/* Colorpage Vivid 4x */
	/* Hewlett Packard */
	/* IMPORTANT: Hewlett-Packard multi-function peripherals (OfficeJet, 
	   Printer/Scanner/Copier (PSC), LaserJet, or PhotoSmart printer)
	   should not be added to this table because they are accessed by a
	   userspace driver (hpoj) */
	{ USB_DEVICE(0x03f0, 0x0101) },	/* ScanJet 4100C */
	{ USB_DEVICE(0x03f0, 0x0102) },	/* PhotoSmart S20 */
	{ USB_DEVICE(0x03f0, 0x0105) },	/* ScanJet 4200C */
	{ USB_DEVICE(0x03f0, 0x0201) },	/* ScanJet 6200C */
	{ USB_DEVICE(0x03f0, 0x0205) },	/* ScanJet 3300C */
	{ USB_DEVICE(0x03f0, 0x0305) }, /* ScanJet 4300C */
	{ USB_DEVICE(0x03f0, 0x0401) },	/* ScanJet 5200C */
	{ USB_DEVICE(0x03f0, 0x0405) }, /* ScanJet 3400C */
	{ USB_DEVICE(0x03f0, 0x0505) }, /* ScanJet 2100C */
	{ USB_DEVICE(0x03f0, 0x0601) },	/* ScanJet 6300C */
	{ USB_DEVICE(0x03f0, 0x0605) },	/* ScanJet 2200C */
	//	{ USB_DEVICE(0x03f0, 0x0701) },	/* ScanJet 5300C - NOT SUPPORTED - use hpusbscsi driver */
	{ USB_DEVICE(0x03f0, 0x0705) }, /* ScanJet 4400C */
	//	{ USB_DEVICE(0x03f0, 0x0801) },	/* ScanJet 7400C - NOT SUPPORTED - use hpusbscsi driver */
	{ USB_DEVICE(0x03f0, 0x0805) },	/* ScanJet 4470c */
	{ USB_DEVICE(0x03f0, 0x0901) }, /* ScanJet 2300C */
	{ USB_DEVICE(0x03f0, 0x0a01) },	/* ScanJet 2400c */
	{ USB_DEVICE(0x03F0, 0x1005) },	/* ScanJet 5400C */
	{ USB_DEVICE(0x03F0, 0x1105) },	/* ScanJet 5470C */
	{ USB_DEVICE(0x03f0, 0x1205) }, /* ScanJet 5550C */
	{ USB_DEVICE(0x03f0, 0x1305) },	/* Scanjet 4570c */
	//	{ USB_DEVICE(0x03f0, 0x1411) }, /* PSC 750 - NOT SUPPORTED - use hpoj userspace driver */
	{ USB_DEVICE(0x03f0, 0x2005) },	/* ScanJet 3570c */
	{ USB_DEVICE(0x03f0, 0x2205) },	/* ScanJet 3500c */
	//	{ USB_DEVICE(0x03f0, 0x2f11) }, /* PSC 1210 - NOT SUPPORTED - use hpoj userspace driver */
	/* Lexmark */
	{ USB_DEVICE(0x043d, 0x002d) }, /* X70/X73 */
	{ USB_DEVICE(0x043d, 0x003d) }, /* X83 */
	/* LG Electronics */
	{ USB_DEVICE(0x0461, 0x0364) },	/* Scanworks 600U (repackaged Primax?) */
	/* Medion */
	{ USB_DEVICE(0x0461, 0x0377) },	/* MD 5345 - repackaged Primax? */
	/* Memorex */
	{ USB_DEVICE(0x0461, 0x0346) }, /* 6136u - repackaged Primax ? */
	/* Microtek */
	{ USB_DEVICE(0x05da, 0x20a7) },	/* ScanMaker 5600 */
	{ USB_DEVICE(0x05da, 0x20c9) }, /* ScanMaker 6700 */
	{ USB_DEVICE(0x05da, 0x30ce) },	/* ScanMaker 3800 */
	{ USB_DEVICE(0x05da, 0x30cf) },	/* ScanMaker 4800 */
	{ USB_DEVICE(0x05da, 0x30d4) },	/* ScanMaker 3830 + 3840 */