2003-09-23 07:10:53 +00:00
|
|
|
/*.............................................................................
|
2003-09-24 14:08:01 +00:00
|
|
|
* Project : SANE library for Plustek parallelport flatbed scanners.
|
2003-09-23 07:10:53 +00:00
|
|
|
*.............................................................................
|
2003-09-24 14:08:01 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
/* @file plustek-pp_misc.c
|
|
|
|
* @brief here we have some helpful functions
|
|
|
|
*
|
2003-09-23 07:10:53 +00:00
|
|
|
* based on sources acquired from Plustek Inc.
|
|
|
|
* Copyright (C) 1998 Plustek Inc.
|
2004-01-09 15:57:55 +00:00
|
|
|
* Copyright (C) 2000-2004 Gerhard Jaeger <gerhard@gjaeger.de>
|
2003-09-23 07:10:53 +00:00
|
|
|
* also based on the work done by Rick Bronson
|
|
|
|
*
|
2003-09-24 14:08:01 +00:00
|
|
|
* History:
|
|
|
|
* - 0.30 - initial version
|
|
|
|
* - 0.31 - no changes
|
|
|
|
* - 0.32 - moved the parport functions inside this module
|
|
|
|
* - now using the information, the parport-driver provides
|
|
|
|
* - for selecting the port-mode this driver uses
|
|
|
|
* - 0.33 - added code to use faster portmodes
|
|
|
|
* - 0.34 - added sample code for changing from ECP to PS/2 bidi mode
|
2003-10-22 19:20:31 +00:00
|
|
|
* - 0.35 - added Kevins' changes (new function miscSetFastMode())
|
2003-09-24 14:08:01 +00:00
|
|
|
* - moved function initPageSettings() to module models.c
|
|
|
|
* - 0.36 - added random generator
|
|
|
|
* - added additional debug messages
|
|
|
|
* - changed prototype of MiscInitPorts()
|
|
|
|
* - added miscPreemptionCallback()
|
|
|
|
* - 0.37 - changed inb_p/outb_p to macro calls (kernel-mode)
|
|
|
|
* - added MiscGetModelName()
|
|
|
|
* - added miscShowPortModes()
|
|
|
|
* - 0.38 - fixed a small bug in MiscGetModelName()
|
|
|
|
* - 0.39 - added forceMode support
|
|
|
|
* - 0.40 - no changes
|
|
|
|
* - 0.41 - merged Kevins' patch to make EPP(ECP) work
|
|
|
|
* - 0.42 - changed get_fast_time to _GET_TIME
|
|
|
|
* - changed include names
|
2004-04-14 19:11:48 +00:00
|
|
|
* - 0.43 - added LINUX_26 stuff
|
2003-09-24 14:08:01 +00:00
|
|
|
* .
|
|
|
|
* <hr>
|
|
|
|
* This file is part of the SANE package.
|
2003-09-23 07:10:53 +00:00
|
|
|
*
|
2003-09-24 14:08:01 +00:00
|
|
|
* 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.
|
2003-09-23 07:10:53 +00:00
|
|
|
*
|
2003-09-24 14:08:01 +00:00
|
|
|
* 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.
|
2003-09-23 07:10:53 +00:00
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
* along with this program; if not, write to the Free Software
|
2003-09-24 14:08:01 +00:00
|
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
|
|
|
* MA 02111-1307, USA.
|
|
|
|
*
|
|
|
|
* As a special exception, the authors of SANE give permission for
|
|
|
|
* additional uses of the libraries contained in this release of SANE.
|
|
|
|
*
|
|
|
|
* The exception is that, if you link a SANE library with other files
|
|
|
|
* to produce an executable, this does not by itself cause the
|
|
|
|
* resulting executable to be covered by the GNU General Public
|
|
|
|
* License. Your use of that executable is in no way restricted on
|
|
|
|
* account of linking the SANE library code into it.
|
|
|
|
*
|
|
|
|
* This exception does not, however, invalidate any other reasons why
|
|
|
|
* the executable file might be covered by the GNU General Public
|
|
|
|
* License.
|
|
|
|
*
|
|
|
|
* If you submit changes to SANE to the maintainers to be included in
|
|
|
|
* a subsequent release, you agree by submitting the changes that
|
|
|
|
* those changes may be distributed with this exception intact.
|
|
|
|
*
|
|
|
|
* If you write modifications of your own for SANE, it is your choice
|
|
|
|
* whether to permit this exception to apply to your modifications.
|
|
|
|
* If you do not wish that, delete this exception notice.
|
|
|
|
* <hr>
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
|
|
|
#include "plustek-pp_scan.h"
|
|
|
|
|
|
|
|
/*************************** some definitions ********************************/
|
|
|
|
|
|
|
|
#ifndef __KERNEL__
|
2003-10-22 19:20:31 +00:00
|
|
|
# define PPA_PROBE_SPP 0x0001
|
|
|
|
# define PPA_PROBE_PS2 0x0002
|
|
|
|
# define PPA_PROBE_ECR 0x0010
|
|
|
|
# define PPA_PROBE_EPP17 0x0100
|
|
|
|
# define PPA_PROBE_EPP19 0x0200
|
2003-09-23 07:10:53 +00:00
|
|
|
#else
|
|
|
|
|
2004-05-15 13:58:40 +00:00
|
|
|
/* the parport driver in Kernel 2.4 has changed. It does report the
|
2003-09-23 07:10:53 +00:00
|
|
|
* possible modes in a different, more general way. As long, as
|
|
|
|
* we do not use the parport-module change mode facility, I assume
|
|
|
|
* the following correlations
|
|
|
|
*/
|
|
|
|
#if defined LINUX_24 || defined LINUX_26
|
2004-04-14 19:11:48 +00:00
|
|
|
# define PARPORT_MODE_PCPS2 PARPORT_MODE_TRISTATE
|
|
|
|
# define PARPORT_MODE_PCEPP PARPORT_MODE_EPP
|
|
|
|
# define PARPORT_MODE_PCECPPS2 PARPORT_MODE_TRISTATE
|
2003-09-23 07:10:53 +00:00
|
|
|
# define PARPORT_MODE_PCECPEPP PARPORT_MODE_EPP
|
2004-04-14 19:11:48 +00:00
|
|
|
# define PARPORT_MODE_PCECR PARPORT_MODE_ECP
|
2003-09-23 07:10:53 +00:00
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
|
2004-05-15 13:58:40 +00:00
|
|
|
#define _PP_A 16807 /**< multiplier */
|
|
|
|
#define _PP_M 2147483647L /**< 2**31 - 1 */
|
2003-09-23 07:10:53 +00:00
|
|
|
|
|
|
|
/*************************** some local vars *********************************/
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
static int port_feature = 0;
|
|
|
|
static long randomnum = 1;
|
2003-09-23 07:10:53 +00:00
|
|
|
|
2003-09-24 14:08:01 +00:00
|
|
|
#ifdef __KERNEL__
|
2003-09-23 07:10:53 +00:00
|
|
|
static int portIsClaimed[_MAX_PTDEVS] = { [0 ... (_MAX_PTDEVS-1)] = 0 };
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
MODELSTR; /**< a static char array (see plustek-pp.h) */
|
2003-09-24 14:08:01 +00:00
|
|
|
|
|
|
|
#else
|
|
|
|
static int portIsClaimed[_MAX_PTDEVS] = { 0, 0, 0, 0 };
|
2003-09-23 07:10:53 +00:00
|
|
|
#endif
|
|
|
|
|
|
|
|
/*************************** local functions *********************************/
|
|
|
|
|
2003-10-22 19:20:31 +00:00
|
|
|
#ifdef __KERNEL__
|
2004-04-14 19:11:48 +00:00
|
|
|
#ifdef LINUX_26
|
|
|
|
|
|
|
|
static pScanData __ps = NULL;
|
|
|
|
static int __pa = -1;
|
|
|
|
|
|
|
|
/** callback from parport driver
|
|
|
|
*/
|
|
|
|
static void misc_attach(struct parport *port)
|
|
|
|
{
|
|
|
|
DBG( DBG_LOW, "misc_attach\n" );
|
|
|
|
|
|
|
|
__ps->pp = NULL;
|
|
|
|
if( port->base == (unsigned long)__pa ) {
|
|
|
|
DBG( DBG_LOW, "Requested port (0x%02x) found\n", __pa );
|
|
|
|
DBG( DBG_LOW, "Port mode reported: (0x%04x)\n", port->modes );
|
|
|
|
__ps->pp = port;
|
|
|
|
}
|
|
|
|
|
|
|
|
__ps = NULL;
|
|
|
|
__pa = -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void misc_detach( struct parport *port )
|
|
|
|
{
|
|
|
|
DBG( DBG_LOW, "misc_detach\n" );
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct parport_driver pt_drv = {
|
|
|
|
.name = "pt_drv",
|
|
|
|
.attach = misc_attach,
|
|
|
|
.detach = misc_detach,
|
|
|
|
};
|
|
|
|
#endif
|
2003-10-22 19:20:31 +00:00
|
|
|
|
2003-09-23 07:10:53 +00:00
|
|
|
/** display the avaialable port-modes
|
|
|
|
*/
|
|
|
|
#ifdef DEBUG
|
|
|
|
static void miscShowPortModes( int modes )
|
|
|
|
{
|
|
|
|
DBG( DBG_LOW, "parport-modi:" );
|
|
|
|
|
|
|
|
if( modes & PARPORT_MODE_PCSPP )
|
|
|
|
DBG( DBG_LOW, " SPP" );
|
|
|
|
|
|
|
|
if( modes & PARPORT_MODE_PCPS2 )
|
|
|
|
DBG( DBG_LOW, " PS/2" );
|
|
|
|
|
|
|
|
if( modes & PARPORT_MODE_PCEPP )
|
|
|
|
DBG( DBG_LOW, " EPP" );
|
|
|
|
|
|
|
|
if( modes & PARPORT_MODE_PCECR )
|
|
|
|
DBG( DBG_LOW, " ECP" );
|
|
|
|
|
|
|
|
if( modes & PARPORT_MODE_PCECPEPP )
|
|
|
|
DBG( DBG_LOW, " EPP(ECP)" );
|
|
|
|
|
|
|
|
if( modes & PARPORT_MODE_PCECPPS2 )
|
|
|
|
DBG( DBG_LOW, " PS/2(ECP)" );
|
|
|
|
|
|
|
|
DBG( DBG_LOW, "\n" );
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/** probe the parallel port
|
|
|
|
*/
|
|
|
|
static int initPortProbe( pScanData ps )
|
|
|
|
{
|
|
|
|
int retv = 0;
|
|
|
|
|
2003-10-22 19:20:31 +00:00
|
|
|
/* clear the controls */
|
2003-09-23 07:10:53 +00:00
|
|
|
ps->IO.lastPortMode = 0xFFFF;
|
|
|
|
|
|
|
|
if( NULL != ps->pardev )
|
|
|
|
retv = ps->pardev->port->modes;
|
|
|
|
return retv;
|
|
|
|
}
|
|
|
|
|
|
|
|
/** will be called by the parport module when we already have access, but
|
|
|
|
* another module wants access to the port...
|
|
|
|
*/
|
|
|
|
static int miscPreemptionCallback( pVoid data )
|
|
|
|
{
|
|
|
|
pScanData ps = (pScanData)data;
|
|
|
|
|
|
|
|
if( NULL != ps ) {
|
|
|
|
|
|
|
|
/* never release during scanning */
|
|
|
|
if( ps->DataInf.dwScanFlag & _SCANNER_SCANNING ) {
|
|
|
|
DBG( DBG_LOW, "no way!!!\n" );
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* let the port go...*/
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/** depending on the reported possible port modes, we try to set a faster mode
|
|
|
|
* than SPP
|
|
|
|
*/
|
|
|
|
static int miscSetFastMode( pScanData ps )
|
|
|
|
{
|
|
|
|
UChar a, b;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* when previously found the EPP mode, break right here
|
|
|
|
*/
|
|
|
|
if (( _PORT_EPP == ps->IO.portMode ) && (!(port_feature & PARPORT_MODE_PCECR)))
|
|
|
|
return _OK;
|
|
|
|
|
|
|
|
/* CHECK REMOVE: from here we should have SPP (Paranoia Code !) */
|
|
|
|
if (( _PORT_SPP != ps->IO.portMode ) && (!(port_feature & PARPORT_MODE_PCECR)))
|
|
|
|
return _OK;
|
|
|
|
|
|
|
|
DBG(DBG_LOW, "Trying faster mode...\n" );
|
|
|
|
|
|
|
|
/*
|
|
|
|
* ECP mode usually has sub-modes of EPP and/or PS2.
|
|
|
|
* First we try to set EPP
|
|
|
|
*/
|
|
|
|
if((port_feature & PARPORT_MODE_PCECR) &&
|
|
|
|
(port_feature & PARPORT_MODE_PCECPEPP)){
|
|
|
|
|
|
|
|
DBG(DBG_LOW, "Attempting to set EPP from ECP mode.\n" );
|
|
|
|
|
|
|
|
a = _INB_ECTL(ps); /* get current ECR */
|
|
|
|
ps->IO.lastPortMode = a; /* save it for restoring later */
|
|
|
|
a = (a & 0x1F) | 0x80; /* set to EPP */
|
|
|
|
_OUTB_ECTL(ps, a); /* write it back */
|
|
|
|
_DO_UDELAY(1);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* It is probably unnecessary to
|
|
|
|
* do this check but it makes me feel better
|
|
|
|
*/
|
|
|
|
b = _INB_ECTL(ps); /* check to see if port set */
|
|
|
|
if( a == b ) {
|
|
|
|
DBG( DBG_LOW, "Port is set to (ECP) EPP mode.\n" );
|
|
|
|
ps->IO.portMode = _PORT_EPP;
|
|
|
|
return _OK;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
DBG( DBG_LOW, "Port could not be set to (ECP) EPP mode. "
|
|
|
|
"Using SPP mode.\n" );
|
|
|
|
_OUTB_ECTL(ps,(Byte)ps->IO.lastPortMode); /* restore */
|
|
|
|
_DO_UDELAY(1);
|
|
|
|
ps->IO.portMode = _PORT_SPP;
|
|
|
|
|
|
|
|
/* go ahead and try with other settings...*/
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If port cannot be set to EPP, try PS2 */
|
|
|
|
if((port_feature & PARPORT_MODE_PCECR) &&
|
|
|
|
(port_feature & PARPORT_MODE_PCECPPS2)) {
|
|
|
|
|
|
|
|
DBG(DBG_LOW, "Attempting to set PS2 from ECPPS2 mode.\n" );
|
|
|
|
|
|
|
|
a = _INB_ECTL(ps); /* get current ECR */
|
|
|
|
ps->IO.lastPortMode = a; /* save it for restoring later */
|
|
|
|
|
|
|
|
/* set to Fast Centronics/bi-directional/PS2 */
|
|
|
|
a = (a & 0x1F) | 0x20;
|
|
|
|
_OUTB_ECTL(ps,a); /* write it back */
|
|
|
|
_DO_UDELAY(1);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* It is probably unnecessary to do this check
|
|
|
|
* but it makes me feel better
|
|
|
|
*/
|
|
|
|
b = _INB_ECTL(ps); /* check to see if port set */
|
|
|
|
if (a == b) {
|
|
|
|
DBG(DBG_LOW, "Port is set to (ECP) PS2 bidirectional mode.\n");
|
|
|
|
ps->IO.portMode = _PORT_BIDI;
|
|
|
|
return _OK;
|
|
|
|
} else {
|
|
|
|
DBG(DBG_LOW, "Port could not be set to (ECP) PS2 mode. "
|
|
|
|
"Using SPP mode.\n");
|
2003-10-29 16:53:18 +00:00
|
|
|
a = ps->IO.lastPortMode & 0x1F;
|
|
|
|
_OUTB_ECTL(ps, a); /* set ECP ctrl to SPP */
|
2003-09-23 07:10:53 +00:00
|
|
|
_DO_UDELAY(1);
|
|
|
|
ps->IO.portMode = _PORT_SPP;
|
|
|
|
|
|
|
|
/* next mode, last attempt... */
|
|
|
|
}
|
2003-10-29 16:53:18 +00:00
|
|
|
}
|
2003-09-23 07:10:53 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Some BIOS/cards have only a Bi-directional/PS2 mode (no EPP).
|
|
|
|
* Make one last attemp to set to PS2 mode.
|
|
|
|
*/
|
2003-10-29 16:53:18 +00:00
|
|
|
if ( port_feature & PARPORT_MODE_PCPS2 ){
|
2003-09-23 07:10:53 +00:00
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
DBG(DBG_LOW, "Attempting to set PS2 mode.\n" );
|
2003-09-23 07:10:53 +00:00
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
a = _INB_CTRL(ps); /* get current setting of control register*/
|
2003-09-23 07:10:53 +00:00
|
|
|
ps->IO.lastPortMode = a; /* save it for restoring later */
|
2003-10-29 16:53:18 +00:00
|
|
|
a = a | 0x20; /* set bit 5 of control reg */
|
2003-09-23 07:10:53 +00:00
|
|
|
_OUTB_CTRL(ps,a); /* set to Fast Centronics/bi-directional/PS2 */
|
|
|
|
_DO_UDELAY(1);
|
2003-10-29 16:53:18 +00:00
|
|
|
a = 0;
|
2003-09-23 07:10:53 +00:00
|
|
|
|
|
|
|
_OUTB_DATA(ps,0x55);
|
|
|
|
_DO_UDELAY(1);
|
|
|
|
if ((inb(ps->IO.portBase)) != 0x55) /* read data */
|
|
|
|
a++;
|
|
|
|
|
|
|
|
_OUTB_DATA(ps,0xAA);
|
|
|
|
_DO_UDELAY(1);
|
|
|
|
|
|
|
|
if (_INB_DATA(ps) != 0xAA) /* read data */
|
|
|
|
a++;
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
if( 2 == a ) {
|
|
|
|
DBG(DBG_LOW, "Port is set to PS2 bidirectional mode.\n");
|
|
|
|
ps->IO.portMode = _PORT_BIDI;
|
2003-09-23 07:10:53 +00:00
|
|
|
return _OK;
|
2003-10-29 16:53:18 +00:00
|
|
|
|
|
|
|
} else {
|
|
|
|
DBG(DBG_LOW, "Port could not be set to PS2 mode. "
|
2003-09-23 07:10:53 +00:00
|
|
|
"Using SPP mode.\n");
|
|
|
|
_OUTB_CTRL(ps,(Byte)ps->IO.lastPortMode); /* restore */
|
|
|
|
_DO_UDELAY(1);
|
2003-10-29 16:53:18 +00:00
|
|
|
ps->IO.portMode = _PORT_SPP;
|
|
|
|
}
|
|
|
|
}
|
2003-09-23 07:10:53 +00:00
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
/* reaching this point, we're back in SPP mode and there's no need
|
|
|
|
* to restore at shutdown...
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
|
|
|
ps->IO.lastPortMode = 0xFFFF;
|
|
|
|
|
|
|
|
return _OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/** check the state of the par-port and switch to EPP-mode if possible
|
|
|
|
*/
|
|
|
|
static int miscSetPortMode( pScanData ps )
|
|
|
|
{
|
2003-10-22 19:20:31 +00:00
|
|
|
/* try to detect the port settings, SPP seems to work in any case ! */
|
|
|
|
port_feature = initPortProbe( ps );
|
2003-09-23 07:10:53 +00:00
|
|
|
|
|
|
|
#ifdef DEBUG
|
|
|
|
miscShowPortModes( port_feature );
|
|
|
|
#endif
|
|
|
|
|
2003-10-22 19:20:31 +00:00
|
|
|
switch( ps->IO.forceMode ) {
|
2003-09-23 07:10:53 +00:00
|
|
|
|
2003-10-22 19:20:31 +00:00
|
|
|
case 1:
|
|
|
|
DBG( DBG_LOW, "Use of SPP-mode enforced\n" );
|
|
|
|
ps->IO.portMode = _PORT_SPP;
|
|
|
|
return _OK;
|
|
|
|
break;
|
2003-09-23 07:10:53 +00:00
|
|
|
|
|
|
|
case 2:
|
|
|
|
DBG( DBG_LOW, "Use of EPP-mode enforced\n" );
|
|
|
|
ps->IO.portMode = _PORT_EPP;
|
|
|
|
return _OK;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if( !(port_feature & PARPORT_MODE_PCEPP)) {
|
|
|
|
|
|
|
|
if( !(port_feature & PARPORT_MODE_PCSPP )) {
|
|
|
|
_PRINT("\nThis Port supports not the SPP- or EPP-Mode\n" );
|
|
|
|
_PRINT("Please activate SPP-Mode, EPP-Mode or\nEPP + ECP-Mode!\n");
|
|
|
|
return _E_NOSUPP;
|
|
|
|
} else {
|
|
|
|
DBG(DBG_LOW, "Using SPP-mode\n" );
|
|
|
|
ps->IO.portMode = _PORT_SPP;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
DBG(DBG_LOW, "Using EPP-mode\n" );
|
|
|
|
ps->IO.portMode = _PORT_EPP;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* else try to set to a faster mode than SPP */
|
|
|
|
return miscSetFastMode( ps );
|
|
|
|
}
|
2003-10-22 19:20:31 +00:00
|
|
|
#endif
|
2003-09-23 07:10:53 +00:00
|
|
|
|
|
|
|
/** miscNextLongRand() -- generate 2**31-2 random numbers
|
|
|
|
**
|
|
|
|
** public domain by Ray Gardner
|
|
|
|
**
|
|
|
|
** based on "Random Number Generators: Good Ones Are Hard to Find",
|
|
|
|
** S.K. Park and K.W. Miller, Communications of the ACM 31:10 (Oct 1988),
|
|
|
|
** and "Two Fast Implementations of the 'Minimal Standard' Random
|
|
|
|
** Number Generator", David G. Carta, Comm. ACM 33, 1 (Jan 1990), p. 87-88
|
|
|
|
**
|
|
|
|
** linear congruential generator f(z) = 16807 z mod (2 ** 31 - 1)
|
|
|
|
**
|
|
|
|
** uses L. Schrage's method to avoid overflow problems
|
|
|
|
*/
|
|
|
|
static Long miscNextLongRand( Long seed )
|
|
|
|
{
|
|
|
|
ULong lo, hi;
|
|
|
|
|
2004-05-15 13:58:40 +00:00
|
|
|
lo = _PP_A * (Long)(seed & 0xFFFF);
|
|
|
|
hi = _PP_A * (Long)((ULong)seed >> 16);
|
2003-09-23 07:10:53 +00:00
|
|
|
lo += (hi & 0x7FFF) << 16;
|
2004-05-15 13:58:40 +00:00
|
|
|
if (lo > _PP_M) {
|
2003-09-23 07:10:53 +00:00
|
|
|
|
2004-05-15 13:58:40 +00:00
|
|
|
lo &= _PP_M;
|
2003-09-23 07:10:53 +00:00
|
|
|
++lo;
|
|
|
|
}
|
|
|
|
lo += hi >> 15;
|
2004-05-15 13:58:40 +00:00
|
|
|
if (lo > _PP_M) {
|
|
|
|
lo &= _PP_M;
|
2003-09-23 07:10:53 +00:00
|
|
|
++lo;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (Long)lo;
|
|
|
|
}
|
|
|
|
|
|
|
|
/** initialize the random number generator
|
|
|
|
*/
|
|
|
|
static void miscSeedLongRand( ULong seed )
|
|
|
|
{
|
2004-05-15 13:58:40 +00:00
|
|
|
randomnum = seed ? (seed & _PP_M) : 1; /* nonzero seed */
|
2003-09-23 07:10:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/************************ exported functions *********************************/
|
|
|
|
|
|
|
|
/** allocate and initialize some memory for the scanner structure
|
|
|
|
*/
|
2003-09-24 14:08:01 +00:00
|
|
|
_LOC pScanData MiscAllocAndInitStruct( void )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
|
|
|
pScanData ps;
|
|
|
|
|
|
|
|
ps = (pScanData)_KALLOC(sizeof(ScanData), GFP_KERNEL);
|
|
|
|
|
|
|
|
if( NULL != ps ) {
|
|
|
|
MiscReinitStruct( ps );
|
|
|
|
}
|
|
|
|
|
|
|
|
DBG( DBG_HIGH, "ScanData = 0x%08lx\n", (ULong)ps );
|
|
|
|
return ps;
|
|
|
|
}
|
|
|
|
|
|
|
|
/** re-initialize the memory for the scanner structure
|
|
|
|
*/
|
2003-09-24 14:08:01 +00:00
|
|
|
_LOC int MiscReinitStruct( pScanData ps )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
|
|
|
if( NULL == ps )
|
|
|
|
return _E_NULLPTR;
|
|
|
|
|
|
|
|
memset( ps, 0, sizeof(ScanData));
|
|
|
|
|
|
|
|
/*
|
|
|
|
* first init all constant stuff in ScanData
|
|
|
|
*/
|
|
|
|
ps->sCaps.Version = ((_PTDRV_V1 << 8) | _PTDRV_V0);
|
|
|
|
|
|
|
|
ps->bCurrentSpeed = 1;
|
|
|
|
ps->pbMapRed = ps->a_bMapTable;
|
|
|
|
ps->pbMapGreen = &ps->a_bMapTable[256];
|
|
|
|
ps->pbMapBlue = &ps->a_bMapTable[512];
|
|
|
|
ps->sCaps.wIOBase = _NO_BASE;
|
|
|
|
|
|
|
|
/* use memory address to seed the generator */
|
|
|
|
miscSeedLongRand((Long)ps);
|
|
|
|
|
|
|
|
DBG( DBG_HIGH, "Init settings done\n" );
|
|
|
|
return _OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/** in USER-Mode: probe the specified port and try to get the port-mode
|
|
|
|
* in KERNEL-Mode: only use the modes, the driver returns
|
|
|
|
*/
|
2003-09-24 14:08:01 +00:00
|
|
|
_LOC int MiscInitPorts( pScanData ps, int port )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
2003-10-22 19:20:31 +00:00
|
|
|
#ifdef __KERNEL__
|
2003-09-23 07:10:53 +00:00
|
|
|
int status;
|
|
|
|
|
|
|
|
if( NULL == ps )
|
|
|
|
return _E_NULLPTR;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Get access to the ports
|
|
|
|
*/
|
|
|
|
ps->IO.portBase = (UShort)port;
|
|
|
|
|
|
|
|
status = miscSetPortMode(ps);
|
|
|
|
|
|
|
|
if( _OK != status ) {
|
|
|
|
ps->sCaps.wIOBase = _NO_BASE;
|
|
|
|
ps->IO.portBase = _NO_BASE;
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* the port settings
|
|
|
|
*/
|
|
|
|
ps->IO.pbSppDataPort = (UShort)port;
|
|
|
|
ps->IO.pbStatusPort = (UShort)port+1;
|
|
|
|
ps->IO.pbControlPort = (UShort)port+2;
|
2003-10-07 06:26:15 +00:00
|
|
|
ps->IO.pbEppDataPort = (UShort)port+4;
|
2003-10-30 15:54:07 +00:00
|
|
|
|
2003-10-22 19:20:31 +00:00
|
|
|
#else
|
2003-11-04 16:12:12 +00:00
|
|
|
int mode, mts;
|
2003-10-30 15:54:07 +00:00
|
|
|
|
2003-10-22 19:20:31 +00:00
|
|
|
if( NULL == ps )
|
|
|
|
return _E_NULLPTR;
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
if( SANE_STATUS_GOOD != sanei_pp_getmodes( ps->pardev, &mode )) {
|
2003-11-04 16:12:12 +00:00
|
|
|
DBG( DBG_HIGH, "Cannot get port mode!\n" );
|
2003-10-23 15:13:04 +00:00
|
|
|
return _E_NO_PORT;
|
|
|
|
}
|
|
|
|
|
2003-11-04 16:12:12 +00:00
|
|
|
ps->IO.portMode = _PORT_NONE;
|
|
|
|
mts = -1;
|
2003-10-23 15:13:04 +00:00
|
|
|
if( mode & SANEI_PP_MODE_SPP ) {
|
2003-10-29 16:53:18 +00:00
|
|
|
DBG( DBG_LOW, "Setting SPP-mode\n" );
|
2003-10-23 15:13:04 +00:00
|
|
|
ps->IO.portMode = _PORT_SPP;
|
2003-11-04 16:12:12 +00:00
|
|
|
mts = SANEI_PP_MODE_SPP;
|
2003-10-23 15:13:04 +00:00
|
|
|
}
|
|
|
|
if( mode & SANEI_PP_MODE_BIDI ) {
|
2003-10-29 16:53:18 +00:00
|
|
|
DBG( DBG_LOW, "Setting PS/2-mode\n" );
|
2003-10-23 15:13:04 +00:00
|
|
|
ps->IO.portMode = _PORT_BIDI;
|
2003-11-04 16:12:12 +00:00
|
|
|
mts = SANEI_PP_MODE_BIDI;
|
2003-10-23 15:13:04 +00:00
|
|
|
}
|
|
|
|
if( mode & SANEI_PP_MODE_EPP ) {
|
2003-10-29 16:53:18 +00:00
|
|
|
DBG( DBG_LOW, "Setting EPP-mode\n" );
|
2003-10-23 15:13:04 +00:00
|
|
|
ps->IO.portMode = _PORT_EPP;
|
2003-11-04 16:12:12 +00:00
|
|
|
mts = SANEI_PP_MODE_EPP;
|
2003-10-23 15:13:04 +00:00
|
|
|
}
|
|
|
|
if( mode & SANEI_PP_MODE_ECP ) {
|
2003-10-29 16:53:18 +00:00
|
|
|
DBG( DBG_HIGH, "ECP detected --> not supported\n" );
|
2003-10-23 15:13:04 +00:00
|
|
|
}
|
2003-10-22 19:20:31 +00:00
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
if( sanei_pp_uses_directio()) {
|
|
|
|
DBG( DBG_LOW, "We're using direct I/O\n" );
|
|
|
|
} else {
|
|
|
|
DBG( DBG_LOW, "We're using libIEEE1284 I/O\n" );
|
|
|
|
}
|
2003-10-26 10:58:36 +00:00
|
|
|
|
2003-11-04 16:12:12 +00:00
|
|
|
if( ps->IO.portMode == _PORT_NONE ) {
|
|
|
|
DBG( DBG_HIGH, "None of the portmodes is supported.\n" );
|
|
|
|
return _E_NOSUPP;
|
|
|
|
}
|
|
|
|
|
|
|
|
sanei_pp_setmode( ps->pardev, mts );
|
2003-10-22 19:20:31 +00:00
|
|
|
_VAR_NOT_USED( port );
|
|
|
|
#endif
|
2003-09-23 07:10:53 +00:00
|
|
|
return _OK;
|
|
|
|
}
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
/** Function to restore the port
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
2003-09-24 14:08:01 +00:00
|
|
|
_LOC void MiscRestorePort( pScanData ps )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
2003-10-22 19:20:31 +00:00
|
|
|
#ifdef __KERNEL__
|
2003-09-23 07:10:53 +00:00
|
|
|
if( 0 == ps->IO.pbSppDataPort )
|
|
|
|
return;
|
2003-10-22 19:20:31 +00:00
|
|
|
#endif
|
2003-09-23 07:10:53 +00:00
|
|
|
|
|
|
|
DBG(DBG_LOW,"MiscRestorePort()\n");
|
|
|
|
|
2003-10-05 16:00:30 +00:00
|
|
|
/* don't restore if not necessary */
|
2003-09-23 07:10:53 +00:00
|
|
|
if( 0xFFFF == ps->IO.lastPortMode ) {
|
|
|
|
DBG(DBG_LOW,"- no need to restore portmode !\n");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*Restore Port-Mode*/
|
|
|
|
#ifdef __KERNEL__
|
2003-10-29 16:53:18 +00:00
|
|
|
if( port_feature & PARPORT_MODE_PCECR ){
|
2003-09-23 07:10:53 +00:00
|
|
|
_OUTB_ECTL( ps, (Byte)ps->IO.lastPortMode );
|
|
|
|
_DO_UDELAY(1);
|
|
|
|
} else {
|
|
|
|
_OUTB_CTRL( ps, (Byte)ps->IO.lastPortMode );
|
|
|
|
_DO_UDELAY(1);
|
|
|
|
}
|
|
|
|
#else
|
2003-10-29 16:53:18 +00:00
|
|
|
if( port_feature & PPA_PROBE_ECR ){
|
2003-10-22 19:20:31 +00:00
|
|
|
_OUTB_ECTL(ps,ps->IO.lastPortMode);
|
2003-09-23 07:10:53 +00:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
/** Initializes a timer.
|
|
|
|
* @param timer - pointer to the timer to start
|
|
|
|
* @param us - timeout value in micro-seconds
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
2003-10-02 07:44:08 +00:00
|
|
|
_LOC _INL void MiscStartTimer( pTimerDef timer , unsigned long us)
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
|
|
|
struct timeval start_time;
|
|
|
|
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
_GET_TIME( &start_time );
|
|
|
|
#else
|
|
|
|
gettimeofday(&start_time, NULL);
|
|
|
|
#endif
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
*timer = start_time.tv_sec * 1e6 + start_time.tv_usec + us;
|
2003-09-23 07:10:53 +00:00
|
|
|
}
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
/** Checks if a timer has been expired or not. In Kernel-mode, the scheduler
|
|
|
|
* will also be triggered, if the timer has not been expired.
|
|
|
|
* @param timer - pointer to the timer to check
|
|
|
|
* @return Function returns _E_TIMEOUT when the timer has been expired,
|
|
|
|
* otherwise _OK;
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
2003-10-02 07:44:08 +00:00
|
|
|
_LOC _INL int MiscCheckTimer( pTimerDef timer )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
|
|
|
struct timeval current_time;
|
|
|
|
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
_GET_TIME( ¤t_time );
|
|
|
|
#else
|
|
|
|
gettimeofday(¤t_time, NULL);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
if (current_time.tv_sec * 1e6 + current_time.tv_usec > *timer) {
|
|
|
|
return _E_TIMEOUT;
|
|
|
|
} else {
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
schedule();
|
2003-10-22 19:20:31 +00:00
|
|
|
/*#else
|
|
|
|
sched_yield();
|
|
|
|
*/
|
2003-09-23 07:10:53 +00:00
|
|
|
#endif
|
|
|
|
return _OK;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
/** Checks the function pointers
|
|
|
|
* @param ps - pointer to the scanner data structure.
|
|
|
|
* @return Function returns _TRUE if everything is okay and _FALSE if a NULL
|
|
|
|
* ptr has been detected.
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
|
|
|
#ifdef DEBUG
|
2003-09-24 14:08:01 +00:00
|
|
|
_LOC Bool MiscAllPointersSet( pScanData ps )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
|
|
|
ULong i;
|
|
|
|
pULong ptr;
|
|
|
|
|
|
|
|
for( ptr = (pULong)&ps->OpenScanPath, i = 1;
|
|
|
|
ptr <= (pULong)&ps->ReadOneImageLine; ptr++, i++ ) {
|
|
|
|
|
|
|
|
if( NULL == (pVoid)*ptr ) {
|
|
|
|
DBG( DBG_HIGH, "Function pointer not set (pos = %lu) !\n", i );
|
|
|
|
return _FALSE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return _TRUE;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/** registers this driver to use port "portAddr" (KERNEL-Mode only)
|
2003-10-29 16:53:18 +00:00
|
|
|
* @param ps - pointer to the scanner data structure.
|
|
|
|
* @param portAddr -
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
2003-09-24 14:08:01 +00:00
|
|
|
_LOC int MiscRegisterPort( pScanData ps, int portAddr )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
|
|
|
#ifndef __KERNEL__
|
2003-10-22 19:20:31 +00:00
|
|
|
DBG( DBG_LOW, "Assigning port handle %i\n", portAddr );
|
|
|
|
ps->pardev = portAddr;
|
2003-09-23 07:10:53 +00:00
|
|
|
#else
|
|
|
|
|
2004-04-14 19:11:48 +00:00
|
|
|
#ifdef LINUX_26
|
|
|
|
__ps = ps;
|
|
|
|
__pa = portAddr;
|
|
|
|
|
2004-05-15 13:58:40 +00:00
|
|
|
DBG( DBG_LOW, "Requested port at 0x%02x\n", portAddr );
|
|
|
|
|
2004-04-14 19:11:48 +00:00
|
|
|
if( parport_register_driver(&pt_drv)) {
|
|
|
|
/* Failed; nothing we can do. */
|
|
|
|
return _E_REGISTER;
|
|
|
|
}
|
|
|
|
|
2004-05-15 13:58:40 +00:00
|
|
|
#else
|
|
|
|
struct parport *pp = NULL;
|
|
|
|
|
|
|
|
DBG( DBG_LOW, "Requested port at 0x%02x\n", portAddr );
|
|
|
|
|
2004-04-14 19:11:48 +00:00
|
|
|
pp = parport_enumerate();
|
2003-09-23 07:10:53 +00:00
|
|
|
ps->pardev = NULL;
|
|
|
|
|
|
|
|
if( NULL == pp ) {
|
|
|
|
return _E_PORTSEARCH;
|
|
|
|
}
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
/* go through the list
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
|
|
|
for( ps->pp = NULL; NULL != pp; ) {
|
|
|
|
|
2003-10-22 19:20:31 +00:00
|
|
|
if( pp->base == (unsigned long)portAddr ) {
|
2003-09-23 07:10:53 +00:00
|
|
|
DBG( DBG_LOW, "Requested port (0x%02x) found\n", portAddr );
|
|
|
|
DBG( DBG_LOW, "Port mode reported: (0x%04x)\n", pp->modes );
|
|
|
|
ps->pp = pp;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
pp = pp->next;
|
|
|
|
}
|
2004-04-14 19:11:48 +00:00
|
|
|
#endif
|
2003-09-23 07:10:53 +00:00
|
|
|
|
|
|
|
if( NULL == ps->pp ) {
|
2004-05-15 13:58:40 +00:00
|
|
|
printk("PORT not found!!!\n");
|
2003-09-23 07:10:53 +00:00
|
|
|
return _E_NO_PORT;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* register this device
|
|
|
|
*/
|
|
|
|
ps->pardev = parport_register_device( ps->pp, "Plustek Driver",
|
2004-04-14 19:11:48 +00:00
|
|
|
miscPreemptionCallback, NULL, NULL, 0, (pVoid)ps );
|
2003-09-23 07:10:53 +00:00
|
|
|
|
|
|
|
if( NULL == ps->pardev ) {
|
|
|
|
return _E_REGISTER;
|
|
|
|
}
|
|
|
|
|
|
|
|
DBG( DBG_LOW, "Port for device %lu registered\n", ps->devno );
|
|
|
|
#endif
|
|
|
|
|
|
|
|
portIsClaimed[ps->devno] = 0;
|
|
|
|
return _OK;
|
|
|
|
}
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
/** unregisters the port from driver
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
2003-09-24 14:08:01 +00:00
|
|
|
_LOC void MiscUnregisterPort( pScanData ps )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
if( NULL != ps->pardev ) {
|
|
|
|
DBG( DBG_LOW, "Port unregistered\n" );
|
|
|
|
parport_unregister_device( ps->pardev );
|
|
|
|
}
|
2004-04-14 19:11:48 +00:00
|
|
|
#ifdef LINUX_26
|
|
|
|
parport_unregister_driver( &pt_drv );
|
|
|
|
#endif
|
2003-09-23 07:10:53 +00:00
|
|
|
#else
|
2003-10-22 19:20:31 +00:00
|
|
|
sanei_pp_close( ps->pardev );
|
2003-09-23 07:10:53 +00:00
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
/** Try to claim the port
|
|
|
|
* @param ps - pointer to the scanner data structure.
|
|
|
|
* @return Function returns _OK on success, otherwise _E_BUSY.
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
2003-09-24 14:08:01 +00:00
|
|
|
_LOC int MiscClaimPort( pScanData ps )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
|
|
|
if( 0 == portIsClaimed[ps->devno] ) {
|
|
|
|
|
|
|
|
DBG( DBG_HIGH, "Try to claim the parport\n" );
|
2003-10-29 16:53:18 +00:00
|
|
|
#ifdef __KERNEL__
|
|
|
|
if( 0 != parport_claim( ps->pardev )) {
|
2003-10-22 19:20:31 +00:00
|
|
|
#else
|
2003-10-29 16:53:18 +00:00
|
|
|
if( SANE_STATUS_GOOD != sanei_pp_claim( ps->pardev )) {
|
2003-09-23 07:10:53 +00:00
|
|
|
#endif
|
2003-10-29 16:53:18 +00:00
|
|
|
return _E_BUSY;
|
|
|
|
}
|
|
|
|
}
|
2003-09-23 07:10:53 +00:00
|
|
|
portIsClaimed[ps->devno]++;
|
|
|
|
return _OK;
|
|
|
|
}
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
/** Release previously claimed port
|
|
|
|
* @param ps - pointer to the scanner data structure
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
2003-09-24 14:08:01 +00:00
|
|
|
_LOC void MiscReleasePort( pScanData ps )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
|
|
|
if( portIsClaimed[ps->devno] > 0 ) {
|
|
|
|
portIsClaimed[ps->devno]--;
|
|
|
|
|
|
|
|
if( 0 == portIsClaimed[ps->devno] ) {
|
|
|
|
DBG( DBG_HIGH, "Releasing parport\n" );
|
2003-10-22 19:20:31 +00:00
|
|
|
#ifdef __KERNEL__
|
2003-09-23 07:10:53 +00:00
|
|
|
parport_release( ps->pardev );
|
2003-10-22 19:20:31 +00:00
|
|
|
#else
|
|
|
|
sanei_pp_release( ps->pardev );
|
2003-09-23 07:10:53 +00:00
|
|
|
#endif
|
2003-10-22 19:20:31 +00:00
|
|
|
}
|
2003-09-23 07:10:53 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
/** Get random number
|
|
|
|
* @return a random number.
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
2003-09-24 14:08:01 +00:00
|
|
|
_LOC Long MiscLongRand( void )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
|
|
|
randomnum = miscNextLongRand( randomnum );
|
|
|
|
|
|
|
|
return randomnum;
|
|
|
|
}
|
|
|
|
|
2003-10-29 16:53:18 +00:00
|
|
|
/** According to the id, the function returns a pointer to the model name
|
|
|
|
* @param id - internal id of the various scanner models.
|
|
|
|
* @return a pointer to the model-string.
|
2003-09-23 07:10:53 +00:00
|
|
|
*/
|
2003-09-24 14:08:01 +00:00
|
|
|
_LOC const char *MiscGetModelName( UShort id )
|
2003-09-23 07:10:53 +00:00
|
|
|
{
|
|
|
|
DBG( DBG_HIGH, "MiscGetModelName - id = %i\n", id );
|
|
|
|
|
|
|
|
if( MODEL_OP_PT12 < id )
|
|
|
|
return ModelStr[0];
|
|
|
|
|
|
|
|
return ModelStr[id];
|
|
|
|
}
|
|
|
|
|
|
|
|
/* END PLUSTEK-PP_MISC.C ....................................................*/
|