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sane-project-backends/backend/plustek.c

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/*.............................................................................
* Project : SANE library for Plustek flatbed scanners.
*.............................................................................
*/
/** @file plustek.c
* @brief SANE backend for Plustek scanner
*
* Based on Kazuhiro Sasayama previous work on
* plustek.[ch] file from the SANE package.<br>
* Original code taken from sane-0.71<br>
* Copyright (C) 1997 Hypercore Software Design, Ltd.<br>
* Also based on the work done by Rick Bronson<br>
* Copyright (C) 2000-2007 Gerhard Jaeger <gerhard@gjaeger.de><br>
*
* History:
* - 0.30 - initial version
* - 0.31 - no changes
* - 0.32 - no changes
* - 0.33 - no changes
* - 0.34 - moved some definitions and typedefs to plustek.h
* - 0.35 - removed Y-correction for 12000P model<br>
* - getting Y-size of scan area from driver
* - 0.36 - disabled Dropout, as this does currently not work<br>
* - enabled Halftone selection only for Halftone-mode<br>
* - made the cancel button work by using a child process during read<br>
* - added version code to driver interface<br>
* - cleaned up the code<br>
* - fixed sane compatibility problems<br>
* - added multiple device support<br>
* - 12bit color-depth are now available for scanimage
* - 0.37 - removed X/Y autocorrection, now correcting the stuff
* before scanning
* - applied Michaels' patch to solve the sane_get_parameter problem<br>
* - getting X-size of scan area from driver<br>
* - applied Michaels patch for OPT_RESOLUTION (SANE_INFO_INEXACT stuff)
* - 0.38 - now using the information from the driver
* - some minor fixes<br>
* - removed dropout stuff<br>
* - removed some warning conditions
* - 0.39 - added stuff to use the backend completely in user mode<br>
* - fixed a potential buffer problem<br>
* - removed function attach_one()<br>
* - added USB interface stuff
* - 0.40 - USB scanning works now
* - 0.41 - added some configuration stuff and also changed .conf file<br>
* - added call to sanei_usb_init() and sanei_lm983x_init()
* - 0.42 - added adjustment stuff<br>
* - added custom gamma tables<br>
* - fixed a problem with the "size-sliders"<br>
* - fixed a bug that causes segfault when using the autodetection for
* USB devices<br>
* - added OS/2 switch to disable the USB stuff for OS/2
* - 0.43 - added support for PREVIEW flag
* - 0.44 - added _DBG_DUMP debug level<br>
* - fixed a bug, that stops our lamp timer
* - 0.45 - added additional flags
* - added WIFSIGNALED to check result of child termination
* - changed readImage interface for USB devices
* - homeing of USB scanner is now working correctly
* - 0.46 - added plustek-usbcal.c for extra CIS device calibration
* based on Montys' great work
* - added altCalibration option
* - removed parallelport support --> new backend: plustek_pp
* - cleanup
* - added sanei_thread support
* - 0.47 - added mov-option (model override)
* - removed drvOpen
* - added call to usb_StartLampTimer, when we're using
* SIGALRM for lamp timer
* - closing now writer pipe, when reader_process is done
* - 0.48 - added additional options
* split scanmode and bit-depth
* - 0.49 - improved multi-device capability
* - tweaked some device settings
* - added button support
* - moved AFE stuff to enhanced options
* - 0.50 - cleanup
* - activated IPC stuff
* - added _DBG_DCALDATA for fine calibration data logging
* - added OPT_SPEEDUP handling
* - fixed constraint_type for OPT_BUTTON
* - 0.51 - added fine calibration caching
* - removed #define _PLUSTEK_USB
* - 0.52 - added skipDarkStrip and OPT_LOFF4DARK to frontend options
* - fixed batch scanning
*.
* <hr>
* This file is part of the SANE package.
*
* 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., 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>
*/
/** @mainpage
* @verbinclude Plustek-USB.txt
*/
#ifdef _AIX
# include "../include/lalloca.h"
#endif
#include "../include/sane/config.h"
#include "../include/lalloca.h"
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <time.h>
#include <math.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <sys/types.h>
#include <sys/ioctl.h>
#include "../include/sane/sane.h"
#include "../include/sane/sanei.h"
#include "../include/sane/saneopts.h"
#define BACKEND_VERSION "0.52-10"
#define BACKEND_NAME plustek
#include "../include/sane/sanei_access.h"
#include "../include/sane/sanei_backend.h"
#include "../include/sane/sanei_config.h"
#include "../include/sane/sanei_thread.h"
#define USE_IPC
#include "plustek-usb.h"
#include "plustek.h"
/*********************** the debug levels ************************************/
#define _DBG_FATAL 0
#define _DBG_ERROR 1
#define _DBG_WARNING 3
#define _DBG_INFO 5
#define _DBG_PROC 7
#define _DBG_SANE_INIT 10
#define _DBG_INFO2 15
#define _DBG_DREGS 20
#define _DBG_DCALDATA 22
#define _DBG_DPIC 25
#define _DBG_READ 30
/*****************************************************************************/
#define _SECTION "[usb]"
#define _DEFAULT_DEVICE "auto"
/** to disable the backend... */
/* declare it here, as it's used in plustek-usbscan.c too :-( */
static SANE_Bool cancelRead;
static DevList *usbDevs;
/* the USB-stuff... I know this is in general no good idea, but it works */
#include "plustek-usbio.c"
#include "plustek-usbdevs.c"
#include "plustek-usbhw.c"
#include "plustek-usbmap.c"
#include "plustek-usbscan.c"
#include "plustek-usbimg.c"
#include "plustek-usbcalfile.c"
#include "plustek-usbshading.c"
#include "plustek-usbcal.c"
#include "plustek-usb.c"
/************************** global vars **************************************/
static int num_devices;
static Plustek_Device *first_dev;
static Plustek_Scanner *first_handle;
static const SANE_Device **devlist = 0;
static unsigned long tsecs = 0;
static Plustek_Scanner *sc = NULL;
static const SANE_Int bpp_lm9832_list [] = { 2, 8, 14 };
static const SANE_Int bpp_lm9833_list [] = { 2, 8, 16 };
static const SANE_String_Const mode_list[] =
{
SANE_VALUE_SCAN_MODE_LINEART,
SANE_VALUE_SCAN_MODE_GRAY,
SANE_VALUE_SCAN_MODE_COLOR,
NULL
};
static const SANE_String_Const source_list[] =
{
SANE_I18N("Normal"),
SANE_I18N("Transparency"),
SANE_I18N("Negative"),
NULL
};
static const SANE_Range percentage_range =
{
-100 << SANE_FIXED_SCALE_SHIFT, /* minimum */
100 << SANE_FIXED_SCALE_SHIFT, /* maximum */
1 << SANE_FIXED_SCALE_SHIFT /* quantization */
};
static const SANE_Range warmup_range = { -1, 999, 1 };
static const SANE_Range offtimer_range = { 0, 999, 1 };
static const SANE_Range gain_range = { -1, 63, 1 };
static const SANE_Range loff_range = { -1, 16363, 1 };
/* authorization stuff */
static SANE_Auth_Callback auth = NULL;
/* prototype... */
static SANE_Status local_sane_start(Plustek_Scanner *, int);
/****************************** the backend... *******************************/
#define _YN(x) (x?"yes":"no")
/** function to display the configuration options for the current device
* @param cnf - pointer to the configuration structure whose content should be
* displayed
*/
static void show_cnf( CnfDef *cnf )
{
DBG( _DBG_SANE_INIT,"Device configuration:\n" );
DBG( _DBG_SANE_INIT,"device name : >%s<\n",cnf->devName );
DBG( _DBG_SANE_INIT,"USB-ID : >%s<\n",cnf->usbId );
DBG( _DBG_SANE_INIT,"model ovr. : %d\n", cnf->adj.mov );
DBG( _DBG_SANE_INIT,"warmup : %ds\n", cnf->adj.warmup );
DBG( _DBG_SANE_INIT,"lampOff : %d\n", cnf->adj.lampOff );
DBG( _DBG_SANE_INIT,"lampOffOnEnd : %s\n", _YN(cnf->adj.lampOffOnEnd ));
DBG( _DBG_SANE_INIT,"cacheCalData : %s\n", _YN(cnf->adj.cacheCalData ));
DBG( _DBG_SANE_INIT,"altCalibrate : %s\n", _YN(cnf->adj.altCalibrate ));
DBG( _DBG_SANE_INIT,"skipCalibr. : %s\n", _YN(cnf->adj.skipCalibration));
DBG( _DBG_SANE_INIT,"skipFine : %s\n", _YN(cnf->adj.skipFine ));
DBG( _DBG_SANE_INIT,"skipFineWhite: %s\n", _YN(cnf->adj.skipFineWhite ));
DBG( _DBG_SANE_INIT,"skipDarkStrip: %s\n", _YN(cnf->adj.skipDarkStrip ));
DBG( _DBG_SANE_INIT,"incDarkTarget: %s\n", _YN(cnf->adj.incDarkTgt ));
DBG( _DBG_SANE_INIT,"invertNegs. : %s\n", _YN(cnf->adj.invertNegatives));
DBG( _DBG_SANE_INIT,"dis.Speedup : %s\n", _YN(cnf->adj.disableSpeedup ));
DBG( _DBG_SANE_INIT,"pos_x : %d\n", cnf->adj.pos.x );
DBG( _DBG_SANE_INIT,"pos_y : %d\n", cnf->adj.pos.y );
DBG( _DBG_SANE_INIT,"pos_shading_y: %d\n", cnf->adj.posShadingY );
DBG( _DBG_SANE_INIT,"neg_x : %d\n", cnf->adj.neg.x );
DBG( _DBG_SANE_INIT,"neg_y : %d\n", cnf->adj.neg.y );
DBG( _DBG_SANE_INIT,"neg_shading_y: %d\n", cnf->adj.negShadingY );
DBG( _DBG_SANE_INIT,"tpa_x : %d\n", cnf->adj.tpa.x );
DBG( _DBG_SANE_INIT,"tpa_y : %d\n", cnf->adj.tpa.y );
DBG( _DBG_SANE_INIT,"tpa_shading_y: %d\n", cnf->adj.tpaShadingY );
DBG( _DBG_SANE_INIT,"red gain : %d\n", cnf->adj.rgain );
DBG( _DBG_SANE_INIT,"green gain : %d\n", cnf->adj.ggain );
DBG( _DBG_SANE_INIT,"blue gain : %d\n", cnf->adj.bgain );
DBG( _DBG_SANE_INIT,"red offset : %d\n", cnf->adj.rofs );
DBG( _DBG_SANE_INIT,"green offset : %d\n", cnf->adj.gofs );
DBG( _DBG_SANE_INIT,"blue offset : %d\n", cnf->adj.bofs );
DBG( _DBG_SANE_INIT,"red lampoff : %d\n", cnf->adj.rlampoff );
DBG( _DBG_SANE_INIT,"green lampoff: %d\n", cnf->adj.glampoff );
DBG( _DBG_SANE_INIT,"blue lampoff : %d\n", cnf->adj.blampoff );
DBG( _DBG_SANE_INIT,"red Gamma : %.2f\n",cnf->adj.rgamma );
DBG( _DBG_SANE_INIT,"green Gamma : %.2f\n",cnf->adj.ggamma );
DBG( _DBG_SANE_INIT,"blue Gamma : %.2f\n",cnf->adj.bgamma );
DBG( _DBG_SANE_INIT,"gray Gamma : %.2f\n",cnf->adj.graygamma );
DBG( _DBG_SANE_INIT,"---------------------\n" );
}
/** Calls the device specific stop and close functions.
* @param dev - pointer to the device specific structure
* @return The function always returns SANE_STATUS_GOOD
*/
static SANE_Status
drvclose( Plustek_Device *dev )
{
if( dev->fd >= 0 ) {
DBG( _DBG_INFO, "drvclose()\n" );
if( 0 != tsecs ) {
DBG( _DBG_INFO, "TIME END 1: %lus\n", time(NULL)-tsecs);
}
/* don't check the return values, simply do it */
usbDev_stopScan( dev );
usbDev_close ( dev );
sanei_access_unlock( dev->sane.name );
}
dev->fd = -1;
return SANE_STATUS_GOOD;
}
/** according to the mode and source we return the corresponding scanmode and
* bit-depth per pixel
*/
static int
getScanMode( Plustek_Scanner *scanner )
{
int mode;
int scanmode;
/* are we in TPA-mode? */
mode = scanner->val[OPT_MODE].w;
if( scanner->val[OPT_EXT_MODE].w != 0 )
mode += 2;
scanner->params.depth = scanner->val[OPT_BIT_DEPTH].w;
if( mode == 0 ) {
scanmode = COLOR_BW;
scanner->params.depth = 1;
} else if( scanner->params.depth == 8 ) {
if( mode == 1 )
scanmode = COLOR_256GRAY;
else
scanmode = COLOR_TRUE24;
} else {
scanner->params.depth = 16;
if( mode == 1 )
scanmode = COLOR_GRAY16;
else
scanmode = COLOR_TRUE48;
}
return scanmode;
}
/** return the len of the largest string in the array
*/
static size_t
max_string_size (const SANE_String_Const strings[])
{
size_t size, max_size = 0;
SANE_Int i;
for (i = 0; strings[i]; ++i) {
size = strlen (strings[i]) + 1;
if (size > max_size)
max_size = size;
}
return max_size;
}
/** shutdown open pipes
*/
static SANE_Status
close_pipe( Plustek_Scanner *scanner )
{
if( scanner->r_pipe >= 0 ) {
DBG( _DBG_PROC, "close_pipe (r_pipe)\n" );
close( scanner->r_pipe );
scanner->r_pipe = -1;
}
if( scanner->w_pipe >= 0 ) {
DBG( _DBG_PROC, "close_pipe (w_pipe)\n" );
close( scanner->w_pipe );
scanner->w_pipe = -1;
}
return SANE_STATUS_EOF;
}
/** will be called when a child is going down
*/
static void
sig_chldhandler( int signo )
{
DBG( _DBG_PROC, "(SIG) Child is down (signal=%d)\n", signo );
if (sc) {
sc->calibrating = SANE_FALSE;
sc = NULL;
}
}
/** signal handler to kill the child process
*/
static RETSIGTYPE
reader_process_sigterm_handler( int signo )
{
DBG( _DBG_PROC, "(SIG) reader_process: terminated by signal %d\n", signo );
_exit( SANE_STATUS_GOOD );
}
static RETSIGTYPE
usb_reader_process_sigterm_handler( int signo )
{
DBG( _DBG_PROC, "(SIG) reader_process: terminated by signal %d\n", signo );
cancelRead = SANE_TRUE;
}
static RETSIGTYPE
sigalarm_handler( int signo )
{
_VAR_NOT_USED( signo );
DBG( _DBG_PROC, "ALARM!!!\n" );
}
/**
*/
static void
thread_entry(void)
{
struct SIGACTION act;
sigset_t ignore_set;
sigfillset ( &ignore_set );
sigdelset ( &ignore_set, SIGTERM );
#if defined (__APPLE__) && defined (__MACH__)
sigdelset ( &ignore_set, SIGUSR2 );
#endif
sigprocmask( SIG_SETMASK, &ignore_set, 0 );
memset(&act, 0, sizeof (act));
sigaction( SIGTERM, &act, 0 );
cancelRead = SANE_FALSE;
/* install the signal handler */
sigemptyset(&(act.sa_mask));
act.sa_flags = 0;
act.sa_handler = reader_process_sigterm_handler;
sigaction( SIGTERM, &act, 0 );
act.sa_handler = usb_reader_process_sigterm_handler;
sigaction( SIGUSR1, &act, 0 );
}
/** executed as a child process
* read the data from the driver and send them to the parent process
*/
static int
reader_process( void *args )
{
int line, lerrn;
unsigned char *buf;
unsigned long status;
unsigned long data_length;
Plustek_Scanner *scanner = (Plustek_Scanner *)args;
Plustek_Device *dev = scanner->hw;
#ifdef USE_IPC
IPCDef ipc;
#endif
if( sanei_thread_is_forked()) {
DBG( _DBG_PROC, "reader_process started (forked)\n" );
close( scanner->r_pipe );
scanner->r_pipe = -1;
} else {
DBG( _DBG_PROC, "reader_process started (as thread)\n" );
}
thread_entry();
data_length = scanner->params.lines * scanner->params.bytes_per_line;
DBG( _DBG_PROC, "reader_process:"
"starting to READ data (%lu bytes)\n", data_length );
DBG( _DBG_PROC, "buf = 0x%08lx\n", (unsigned long)scanner->buf );
if( NULL == scanner->buf ) {
DBG( _DBG_FATAL, "NULL Pointer !!!!\n" );
return SANE_STATUS_IO_ERROR;
}
/* prepare for scanning: speed-test, warmup, calibration */
buf = scanner->buf;
status = usbDev_Prepare( scanner->hw, buf );
#ifdef USE_IPC
/* prepare IPC structure */
memset(&ipc, 0, sizeof(ipc));
ipc.transferRate = DEFAULT_RATE;
if( dev->transferRate > 0 && dev->transferRate != DEFAULT_RATE )
ipc.transferRate = dev->transferRate;
/* write ipc back to parent in any case... */
write( scanner->w_pipe, &ipc, sizeof(ipc));
#endif
/* on success, we read all data from the driver... */
if( 0 == status ) {
if( !usb_InCalibrationMode(dev)) {
DBG( _DBG_INFO, "reader_process: READING....\n" );
for( line = 0; line < scanner->params.lines; line++ ) {
status = usbDev_ReadLine( scanner->hw );
if((int)status < 0 ) {
break;
}
write( scanner->w_pipe, buf, scanner->params.bytes_per_line );
buf += scanner->params.bytes_per_line;
}
}
}
/* on error, there's no need to clean up, as this is done by the parent */
lerrn = errno;
close( scanner->w_pipe );
scanner->w_pipe = -1;
if((int)status < 0 ) {
DBG( _DBG_ERROR,"reader_process: read failed, status = %i, errno %i\n",
(int)status, lerrn );
if( _E_ABORT == (int)status )
return SANE_STATUS_CANCELLED;
if( lerrn == EBUSY )
return SANE_STATUS_DEVICE_BUSY;
return SANE_STATUS_IO_ERROR;
}
DBG( _DBG_PROC, "reader_process: finished reading data\n" );
return SANE_STATUS_GOOD;
}
/** stop the current scan process
*/
static SANE_Status
do_cancel( Plustek_Scanner *scanner, SANE_Bool closepipe )
{
struct SIGACTION act;
SANE_Pid res;
DBG( _DBG_PROC,"do_cancel\n" );
scanner->scanning = SANE_FALSE;
if( scanner->reader_pid != -1 ) {
DBG( _DBG_PROC, ">>>>>>>> killing reader_process <<<<<<<<\n" );
cancelRead = SANE_TRUE;
scanner->calibrating = SANE_FALSE;
sigemptyset(&(act.sa_mask));
act.sa_flags = 0;
act.sa_handler = sigalarm_handler;
sigaction( SIGALRM, &act, 0 );
/* kill our child process and wait until done */
sanei_thread_sendsig( scanner->reader_pid, SIGUSR1 );
/* give'em 10 seconds 'til done...*/
alarm(10);
res = sanei_thread_waitpid( scanner->reader_pid, 0 );
alarm(0);
if( res != scanner->reader_pid ) {
DBG( _DBG_PROC,"sanei_thread_waitpid() failed !\n");
/* do it the hard way...*/
#ifdef USE_PTHREAD
sanei_thread_kill( scanner->reader_pid );
#else
sanei_thread_sendsig( scanner->reader_pid, SIGKILL );
#endif
}
scanner->reader_pid = -1;
DBG( _DBG_PROC,"reader_process killed\n");
#ifndef HAVE_SETITIMER
usb_StartLampTimer( scanner->hw );
#endif
}
scanner->calibrating = SANE_FALSE;
if( SANE_TRUE == closepipe ) {
close_pipe( scanner );
}
drvclose( scanner->hw );
if( tsecs != 0 ) {
DBG( _DBG_INFO, "TIME END 2: %lus\n", time(NULL)-tsecs);
tsecs = 0;
}
return SANE_STATUS_CANCELLED;
}
/** As we support only LM9831/2/3 chips we use the same
* sizes for each device...
* @param s - pointer to the scanner specific structure
* @return The function always returns SANE_STATUS_GOOD
*/
static SANE_Status
initGammaSettings( Plustek_Scanner *s )
{
int i, j, val;
double gamma;
s->gamma_length = 4096;
s->gamma_range.min = 0;
s->gamma_range.max = 255;
s->gamma_range.quant = 0;
DBG( _DBG_INFO, "Presetting Gamma tables (len=%u)\n", s->gamma_length );
/* preset the gamma maps
*/
for( i = 0; i < 4; i++ ) {
switch( i ) {
case 1: gamma = s->hw->adj.rgamma; break;
case 2: gamma = s->hw->adj.ggamma; break;
case 3: gamma = s->hw->adj.bgamma; break;
default: gamma = s->hw->adj.graygamma; break;
}
DBG( _DBG_INFO, "* Channel[%u], gamma %.3f\n", i, gamma );
for( j = 0; j < s->gamma_length; j++ ) {
val = (s->gamma_range.max *
pow((double)j / (double)(s->gamma_length-1.0),
1.0 / gamma ));
if( val > s->gamma_range.max )
val = s->gamma_range.max;
s->gamma_table[i][j] = val;
}
}
DBG( _DBG_INFO, "----------------------------------\n" );
return SANE_STATUS_GOOD;
}
/** Check the gamma vectors we got back and limit if necessary
* @param s - pointer to the scanner specific structure
* @return nothing
*/
static void
checkGammaSettings( Plustek_Scanner *s )
{
int i, j;
DBG( _DBG_INFO, "Maps changed...\n" );
for( i = 0; i < 4 ; i++ ) {
for( j = 0; j < s->gamma_length; j++ ) {
if( s->gamma_table[i][j] > s->gamma_range.max ) {
s->gamma_table[i][j] = s->gamma_range.max;
}
}
}
}
/** initialize the options for the backend according to the device we have
*/
static SANE_Status
init_options( Plustek_Scanner *s )
{
int i;
Plustek_Device *dev = s->hw;
AdjDef *adj = &dev->adj;
DCapsDef *caps = &dev->usbDev.Caps;
memset(s->opt, 0, sizeof(s->opt));
for( i = 0; i < NUM_OPTIONS; ++i ) {
s->opt[i].size = sizeof (SANE_Word);
s->opt[i].cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
s->opt[i].unit = SANE_UNIT_NONE;
}
s->opt[OPT_NUM_OPTS].name = SANE_NAME_NUM_OPTIONS;
s->opt[OPT_NUM_OPTS].title = SANE_TITLE_NUM_OPTIONS;
s->opt[OPT_NUM_OPTS].desc = SANE_DESC_NUM_OPTIONS;
s->opt[OPT_NUM_OPTS].type = SANE_TYPE_INT;
s->opt[OPT_NUM_OPTS].cap = SANE_CAP_SOFT_DETECT;
s->opt[OPT_NUM_OPTS].constraint_type = SANE_CONSTRAINT_NONE;
s->val[OPT_NUM_OPTS].w = NUM_OPTIONS;
/* "Scan Mode" group: */
s->opt[OPT_MODE_GROUP].title = SANE_I18N("Scan Mode");
s->opt[OPT_MODE_GROUP].desc = "";
s->opt[OPT_MODE_GROUP].type = SANE_TYPE_GROUP;
s->opt[OPT_MODE_GROUP].cap = 0;
/* scan mode */
s->opt[OPT_MODE].name = SANE_NAME_SCAN_MODE;
s->opt[OPT_MODE].title = SANE_TITLE_SCAN_MODE;
s->opt[OPT_MODE].desc = SANE_DESC_SCAN_MODE;
s->opt[OPT_MODE].type = SANE_TYPE_STRING;
s->opt[OPT_MODE].size = max_string_size(mode_list);
s->opt[OPT_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST;
s->opt[OPT_MODE].constraint.string_list = mode_list;
s->val[OPT_MODE].w = 2; /* Color */
/* bit depth */
s->opt[OPT_BIT_DEPTH].name = SANE_NAME_BIT_DEPTH;
s->opt[OPT_BIT_DEPTH].title = SANE_TITLE_BIT_DEPTH;
s->opt[OPT_BIT_DEPTH].desc = SANE_DESC_BIT_DEPTH;
s->opt[OPT_BIT_DEPTH].type = SANE_TYPE_INT;
s->opt[OPT_BIT_DEPTH].unit = SANE_UNIT_BIT;
s->opt[OPT_BIT_DEPTH].size = sizeof (SANE_Word);
s->opt[OPT_BIT_DEPTH].constraint_type = SANE_CONSTRAINT_WORD_LIST;
if( _LM9833 == dev->usbDev.HwSetting.chip )
s->opt[OPT_BIT_DEPTH].constraint.word_list = bpp_lm9833_list;
else
s->opt[OPT_BIT_DEPTH].constraint.word_list = bpp_lm9832_list;
s->val[OPT_BIT_DEPTH].w = 8;
if (caps->workaroundFlag & _WAF_ONLY_8BIT)
_DISABLE(OPT_BIT_DEPTH);
/* scan source */
s->opt[OPT_EXT_MODE].name = SANE_NAME_SCAN_SOURCE;
s->opt[OPT_EXT_MODE].title = SANE_TITLE_SCAN_SOURCE;
s->opt[OPT_EXT_MODE].desc = SANE_DESC_SCAN_SOURCE;
s->opt[OPT_EXT_MODE].type = SANE_TYPE_STRING;
s->opt[OPT_EXT_MODE].size = max_string_size(source_list);
s->opt[OPT_EXT_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST;
s->opt[OPT_EXT_MODE].constraint.string_list = source_list;
s->val[OPT_EXT_MODE].w = 0; /* Normal */
/* brightness */
s->opt[OPT_BRIGHTNESS].name = SANE_NAME_BRIGHTNESS;
s->opt[OPT_BRIGHTNESS].title = SANE_TITLE_BRIGHTNESS;
s->opt[OPT_BRIGHTNESS].desc = SANE_DESC_BRIGHTNESS;
s->opt[OPT_BRIGHTNESS].type = SANE_TYPE_FIXED;
s->opt[OPT_BRIGHTNESS].unit = SANE_UNIT_PERCENT;
s->opt[OPT_BRIGHTNESS].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_BRIGHTNESS].constraint.range = &percentage_range;
s->val[OPT_BRIGHTNESS].w = 0;
/* contrast */
s->opt[OPT_CONTRAST].name = SANE_NAME_CONTRAST;
s->opt[OPT_CONTRAST].title = SANE_TITLE_CONTRAST;
s->opt[OPT_CONTRAST].desc = SANE_DESC_CONTRAST;
s->opt[OPT_CONTRAST].type = SANE_TYPE_FIXED;
s->opt[OPT_CONTRAST].unit = SANE_UNIT_PERCENT;
s->opt[OPT_CONTRAST].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_CONTRAST].constraint.range = &percentage_range;
s->val[OPT_CONTRAST].w = 0;
/* resolution */
s->opt[OPT_RESOLUTION].name = SANE_NAME_SCAN_RESOLUTION;
s->opt[OPT_RESOLUTION].title = SANE_TITLE_SCAN_RESOLUTION;
s->opt[OPT_RESOLUTION].desc = SANE_DESC_SCAN_RESOLUTION;
s->opt[OPT_RESOLUTION].type = SANE_TYPE_INT;
s->opt[OPT_RESOLUTION].unit = SANE_UNIT_DPI;
s->opt[OPT_RESOLUTION].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_RESOLUTION].constraint.range = &s->hw->dpi_range;
s->val[OPT_RESOLUTION].w = s->hw->dpi_range.min;
/* custom-gamma table */
s->opt[OPT_CUSTOM_GAMMA].name = SANE_NAME_CUSTOM_GAMMA;
s->opt[OPT_CUSTOM_GAMMA].title = SANE_TITLE_CUSTOM_GAMMA;
s->opt[OPT_CUSTOM_GAMMA].desc = SANE_DESC_CUSTOM_GAMMA;
s->opt[OPT_CUSTOM_GAMMA].type = SANE_TYPE_BOOL;
s->val[OPT_CUSTOM_GAMMA].w = SANE_FALSE;
/* preview */
s->opt[OPT_PREVIEW].name = SANE_NAME_PREVIEW;
s->opt[OPT_PREVIEW].title = SANE_TITLE_PREVIEW;
s->opt[OPT_PREVIEW].desc = SANE_DESC_PREVIEW;
s->opt[OPT_PREVIEW].cap = SANE_CAP_SOFT_DETECT | SANE_CAP_SOFT_SELECT;
s->val[OPT_PREVIEW].w = 0;
/* "Geometry" group: */
s->opt[OPT_GEOMETRY_GROUP].title = SANE_I18N("Geometry");
s->opt[OPT_GEOMETRY_GROUP].desc = "";
s->opt[OPT_GEOMETRY_GROUP].type = SANE_TYPE_GROUP;
s->opt[OPT_GEOMETRY_GROUP].cap = SANE_CAP_ADVANCED;
/* top-left x */
s->opt[OPT_TL_X].name = SANE_NAME_SCAN_TL_X;
s->opt[OPT_TL_X].title = SANE_TITLE_SCAN_TL_X;
s->opt[OPT_TL_X].desc = SANE_DESC_SCAN_TL_X;
s->opt[OPT_TL_X].type = SANE_TYPE_FIXED;
s->opt[OPT_TL_X].unit = SANE_UNIT_MM;
s->opt[OPT_TL_X].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_TL_X].constraint.range = &s->hw->x_range;
s->val[OPT_TL_X].w = SANE_FIX(_DEFAULT_TLX);
/* top-left y */
s->opt[OPT_TL_Y].name = SANE_NAME_SCAN_TL_Y;
s->opt[OPT_TL_Y].title = SANE_TITLE_SCAN_TL_Y;
s->opt[OPT_TL_Y].desc = SANE_DESC_SCAN_TL_Y;
s->opt[OPT_TL_Y].type = SANE_TYPE_FIXED;
s->opt[OPT_TL_Y].unit = SANE_UNIT_MM;
s->opt[OPT_TL_Y].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_TL_Y].constraint.range = &s->hw->y_range;
s->val[OPT_TL_Y].w = SANE_FIX(_DEFAULT_TLY);
/* bottom-right x */
s->opt[OPT_BR_X].name = SANE_NAME_SCAN_BR_X;
s->opt[OPT_BR_X].title = SANE_TITLE_SCAN_BR_X;
s->opt[OPT_BR_X].desc = SANE_DESC_SCAN_BR_X;
s->opt[OPT_BR_X].type = SANE_TYPE_FIXED;
s->opt[OPT_BR_X].unit = SANE_UNIT_MM;
s->opt[OPT_BR_X].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_BR_X].constraint.range = &s->hw->x_range;
s->val[OPT_BR_X].w = SANE_FIX(_DEFAULT_BRX);
/* bottom-right y */
s->opt[OPT_BR_Y].name = SANE_NAME_SCAN_BR_Y;
s->opt[OPT_BR_Y].title = SANE_TITLE_SCAN_BR_Y;
s->opt[OPT_BR_Y].desc = SANE_DESC_SCAN_BR_Y;
s->opt[OPT_BR_Y].type = SANE_TYPE_FIXED;
s->opt[OPT_BR_Y].unit = SANE_UNIT_MM;
s->opt[OPT_BR_Y].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_BR_Y].constraint.range = &s->hw->y_range;
s->val[OPT_BR_Y].w = SANE_FIX(_DEFAULT_BRY);
/* "Enhancement" group: */
s->opt[OPT_ENHANCEMENT_GROUP].title = SANE_I18N("Enhancement");
s->opt[OPT_ENHANCEMENT_GROUP].desc = "";
s->opt[OPT_ENHANCEMENT_GROUP].type = SANE_TYPE_GROUP;
s->opt[OPT_ENHANCEMENT_GROUP].cap = 0;
s->opt[OPT_ENHANCEMENT_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
initGammaSettings( s );
/* grayscale gamma vector */
s->opt[OPT_GAMMA_VECTOR].name = SANE_NAME_GAMMA_VECTOR;
s->opt[OPT_GAMMA_VECTOR].title = SANE_TITLE_GAMMA_VECTOR;
s->opt[OPT_GAMMA_VECTOR].desc = SANE_DESC_GAMMA_VECTOR;
s->opt[OPT_GAMMA_VECTOR].type = SANE_TYPE_INT;
s->opt[OPT_GAMMA_VECTOR].constraint_type = SANE_CONSTRAINT_RANGE;
s->val[OPT_GAMMA_VECTOR].wa = &(s->gamma_table[0][0]);
s->opt[OPT_GAMMA_VECTOR].constraint.range = &(s->gamma_range);
s->opt[OPT_GAMMA_VECTOR].size = s->gamma_length * sizeof(SANE_Word);
/* red gamma vector */
s->opt[OPT_GAMMA_VECTOR_R].name = SANE_NAME_GAMMA_VECTOR_R;
s->opt[OPT_GAMMA_VECTOR_R].title = SANE_TITLE_GAMMA_VECTOR_R;
s->opt[OPT_GAMMA_VECTOR_R].desc = SANE_DESC_GAMMA_VECTOR_R;
s->opt[OPT_GAMMA_VECTOR_R].type = SANE_TYPE_INT;
s->opt[OPT_GAMMA_VECTOR_R].constraint_type = SANE_CONSTRAINT_RANGE;
s->val[OPT_GAMMA_VECTOR_R].wa = &(s->gamma_table[1][0]);
s->opt[OPT_GAMMA_VECTOR_R].constraint.range = &(s->gamma_range);
s->opt[OPT_GAMMA_VECTOR_R].size = s->gamma_length * sizeof(SANE_Word);
/* green gamma vector */
s->opt[OPT_GAMMA_VECTOR_G].name = SANE_NAME_GAMMA_VECTOR_G;
s->opt[OPT_GAMMA_VECTOR_G].title = SANE_TITLE_GAMMA_VECTOR_G;
s->opt[OPT_GAMMA_VECTOR_G].desc = SANE_DESC_GAMMA_VECTOR_G;
s->opt[OPT_GAMMA_VECTOR_G].type = SANE_TYPE_INT;
s->opt[OPT_GAMMA_VECTOR_G].constraint_type = SANE_CONSTRAINT_RANGE;
s->val[OPT_GAMMA_VECTOR_G].wa = &(s->gamma_table[2][0]);
s->opt[OPT_GAMMA_VECTOR_G].constraint.range = &(s->gamma_range);
s->opt[OPT_GAMMA_VECTOR_G].size = s->gamma_length * sizeof(SANE_Word);
/* blue gamma vector */
s->opt[OPT_GAMMA_VECTOR_B].name = SANE_NAME_GAMMA_VECTOR_B;
s->opt[OPT_GAMMA_VECTOR_B].title = SANE_TITLE_GAMMA_VECTOR_B;
s->opt[OPT_GAMMA_VECTOR_B].desc = SANE_DESC_GAMMA_VECTOR_B;
s->opt[OPT_GAMMA_VECTOR_B].type = SANE_TYPE_INT;
s->opt[OPT_GAMMA_VECTOR_B].constraint_type = SANE_CONSTRAINT_RANGE;
s->val[OPT_GAMMA_VECTOR_B].wa = &(s->gamma_table[3][0]);
s->opt[OPT_GAMMA_VECTOR_B].constraint.range = &(s->gamma_range);
s->opt[OPT_GAMMA_VECTOR_B].size = s->gamma_length * sizeof(SANE_Word);
/* GAMMA stuff is disabled per default */
_DISABLE(OPT_GAMMA_VECTOR);
_DISABLE(OPT_GAMMA_VECTOR_R);
_DISABLE(OPT_GAMMA_VECTOR_G);
_DISABLE(OPT_GAMMA_VECTOR_B);
/* disable extended mode list for devices without TPA */
if( 0 == (s->hw->caps.dwFlag & SFLAG_TPA))
_DISABLE(OPT_EXT_MODE);
/* "Device settings" group: */
s->opt[OPT_DEVICE_GROUP].title = SANE_I18N("Device-Settings");
s->opt[OPT_DEVICE_GROUP].desc = "";
s->opt[OPT_DEVICE_GROUP].type = SANE_TYPE_GROUP;
s->opt[OPT_DEVICE_GROUP].cap = 0;
s->opt[OPT_DEVICE_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
s->opt[OPT_LAMPSWITCH].name = "lamp-switch";
s->opt[OPT_LAMPSWITCH].title = SANE_I18N("Lampswitch");;
s->opt[OPT_LAMPSWITCH].desc = SANE_I18N("Manually switching the lamp(s).");
s->opt[OPT_LAMPSWITCH].type = SANE_TYPE_BOOL;
s->val[OPT_LAMPSWITCH].w = SANE_FALSE;
s->opt[OPT_LOFF4DARK].name = "lamp-off-during-dcal";
s->opt[OPT_LOFF4DARK].title = SANE_I18N("Lamp off during dark calibration");;
s->opt[OPT_LOFF4DARK].desc = SANE_I18N("Always switches lamp off when doing dark calibration.");
s->opt[OPT_LOFF4DARK].type = SANE_TYPE_BOOL;
s->val[OPT_LOFF4DARK].w = adj->skipDarkStrip;
if (dev->usbDev.Caps.Normal.DarkShadOrgY < 0)
_DISABLE(OPT_LOFF4DARK);
s->opt[OPT_CACHECAL].name = "calibration-cache";
s->opt[OPT_CACHECAL].title = SANE_I18N("Calibration data cache");;
s->opt[OPT_CACHECAL].desc = SANE_I18N("Enables or disables calibration data cache.");
s->opt[OPT_CACHECAL].type = SANE_TYPE_BOOL;
s->val[OPT_CACHECAL].w = adj->cacheCalData;
s->opt[OPT_CALIBRATE].name = "calibrate";
s->opt[OPT_CALIBRATE].title = SANE_I18N("Calibrate");;
s->opt[OPT_CALIBRATE].desc = SANE_I18N("Performs calibration");
s->opt[OPT_CALIBRATE].type = SANE_TYPE_BUTTON;
s->opt[OPT_CALIBRATE].size = sizeof (SANE_Word);
s->opt[OPT_CALIBRATE].constraint_type = SANE_CONSTRAINT_NONE;
s->opt[OPT_CALIBRATE].constraint.range = 0;
s->opt[OPT_CALIBRATE].cap = SANE_CAP_SOFT_DETECT | SANE_CAP_SOFT_SELECT |
SANE_CAP_AUTOMATIC;
_ENABLE(OPT_CALIBRATE);
if( !adj->cacheCalData )
_DISABLE(OPT_CALIBRATE);
s->val[OPT_CALIBRATE].w = 0;
/* it's currently not available for CCD devices */
if( !usb_IsCISDevice(dev) && !dev->adj.altCalibrate)
_DISABLE(OPT_CALIBRATE);
s->opt[OPT_SPEEDUP].name = "speedup-switch";
s->opt[OPT_SPEEDUP].title = SANE_I18N("Speedup sensor");;
s->opt[OPT_SPEEDUP].desc = SANE_I18N("Enables or disables speeding up sensor movement.");
s->opt[OPT_SPEEDUP].type = SANE_TYPE_BOOL;
s->val[OPT_SPEEDUP].w = !(adj->disableSpeedup);
if( s->hw->usbDev.HwSetting.dHighSpeed == 0.0 )
_DISABLE(OPT_SPEEDUP);
s->opt[OPT_LAMPOFF_ONEND].name = SANE_NAME_LAMP_OFF_AT_EXIT;
s->opt[OPT_LAMPOFF_ONEND].title = SANE_TITLE_LAMP_OFF_AT_EXIT;
s->opt[OPT_LAMPOFF_ONEND].desc = SANE_DESC_LAMP_OFF_AT_EXIT;
s->opt[OPT_LAMPOFF_ONEND].type = SANE_TYPE_BOOL;
s->val[OPT_LAMPOFF_ONEND].w = adj->lampOffOnEnd;
s->opt[OPT_WARMUPTIME].name = "warmup-time";
s->opt[OPT_WARMUPTIME].title = SANE_I18N("Warmup-time");;
s->opt[OPT_WARMUPTIME].desc = SANE_I18N("Warmup-time in seconds.");
s->opt[OPT_WARMUPTIME].type = SANE_TYPE_INT;
s->opt[OPT_WARMUPTIME].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_WARMUPTIME].constraint.range = &warmup_range;
s->val[OPT_WARMUPTIME].w = adj->warmup;
/* only available for CCD devices*/
if( usb_IsCISDevice( dev )) {
_DISABLE(OPT_WARMUPTIME);
s->val[OPT_WARMUPTIME].w = 0;
}
s->opt[OPT_LAMPOFF_TIMER].name = "lampoff-time";
s->opt[OPT_LAMPOFF_TIMER].title = SANE_I18N("Lampoff-time");;
s->opt[OPT_LAMPOFF_TIMER].desc = SANE_I18N("Lampoff-time in seconds.");
s->opt[OPT_LAMPOFF_TIMER].type = SANE_TYPE_INT;
s->opt[OPT_LAMPOFF_TIMER].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_LAMPOFF_TIMER].constraint.range = &offtimer_range;
s->val[OPT_LAMPOFF_TIMER].w = adj->lampOff;
/* "Analog Frontend" group*/
s->opt[OPT_AFE_GROUP].title = SANE_I18N("Analog frontend");
s->opt[OPT_AFE_GROUP].desc = "";
s->opt[OPT_AFE_GROUP].type = SANE_TYPE_GROUP;
s->opt[OPT_AFE_GROUP].cap = SANE_CAP_ADVANCED;
s->opt[OPT_OVR_REDGAIN].name = "red-gain";
s->opt[OPT_OVR_REDGAIN].title = SANE_I18N("Red gain");
s->opt[OPT_OVR_REDGAIN].desc = SANE_I18N("Red gain value of the AFE");
s->opt[OPT_OVR_REDGAIN].type = SANE_TYPE_INT;
s->opt[OPT_OVR_REDGAIN].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_OVR_REDGAIN].constraint.range = &gain_range;
s->val[OPT_OVR_REDGAIN].w = adj->rgain;
s->opt[OPT_OVR_REDOFS].name = "red-offset";
s->opt[OPT_OVR_REDOFS].title = SANE_I18N("Red offset");
s->opt[OPT_OVR_REDOFS].desc = SANE_I18N("Red offset value of the AFE");
s->opt[OPT_OVR_REDOFS].type = SANE_TYPE_INT;
s->opt[OPT_OVR_REDOFS].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_OVR_REDOFS].constraint.range = &gain_range;
s->val[OPT_OVR_REDOFS].w = adj->rofs;
s->opt[OPT_OVR_GREENGAIN].name = "green-gain";
s->opt[OPT_OVR_GREENGAIN].title = SANE_I18N("Green gain");
s->opt[OPT_OVR_GREENGAIN].desc = SANE_I18N("Green gain value of the AFE");
s->opt[OPT_OVR_GREENGAIN].type = SANE_TYPE_INT;
s->opt[OPT_OVR_GREENGAIN].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_OVR_GREENGAIN].constraint.range = &gain_range;
s->val[OPT_OVR_GREENGAIN].w = adj->ggain;
s->opt[OPT_OVR_GREENOFS].name = "green-offset";
s->opt[OPT_OVR_GREENOFS].title = SANE_I18N("Green offset");
s->opt[OPT_OVR_GREENOFS].desc = SANE_I18N("Green offset value of the AFE");
s->opt[OPT_OVR_GREENOFS].type = SANE_TYPE_INT;
s->opt[OPT_OVR_GREENOFS].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_OVR_GREENOFS].constraint.range = &gain_range;
s->val[OPT_OVR_GREENOFS].w = adj->gofs;
s->opt[OPT_OVR_BLUEGAIN].name = "blue-gain";
s->opt[OPT_OVR_BLUEGAIN].title = SANE_I18N("Blue gain");
s->opt[OPT_OVR_BLUEGAIN].desc = SANE_I18N("Blue gain value of the AFE");
s->opt[OPT_OVR_BLUEGAIN].type = SANE_TYPE_INT;
s->opt[OPT_OVR_BLUEGAIN].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_OVR_BLUEGAIN].constraint.range = &gain_range;
s->val[OPT_OVR_BLUEGAIN].w = adj->bgain;
s->opt[OPT_OVR_BLUEOFS].name = "blue-offset";
s->opt[OPT_OVR_BLUEOFS].title = SANE_I18N("Blue offset");
s->opt[OPT_OVR_BLUEOFS].desc = SANE_I18N("Blue offset value of the AFE");
s->opt[OPT_OVR_BLUEOFS].type = SANE_TYPE_INT;
s->opt[OPT_OVR_BLUEOFS].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_OVR_BLUEOFS].constraint.range = &gain_range;
s->val[OPT_OVR_BLUEOFS].w = adj->bofs;
s->opt[OPT_OVR_RED_LOFF].name = "redlamp-off";
s->opt[OPT_OVR_RED_LOFF].title = SANE_I18N("Red lamp off");
s->opt[OPT_OVR_RED_LOFF].desc = SANE_I18N("Defines red lamp off parameter");
s->opt[OPT_OVR_RED_LOFF].type = SANE_TYPE_INT;
s->opt[OPT_OVR_RED_LOFF].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_OVR_RED_LOFF].constraint.range = &loff_range;
s->val[OPT_OVR_RED_LOFF].w = adj->rlampoff;
s->opt[OPT_OVR_GREEN_LOFF].name = "greenlamp-off";
s->opt[OPT_OVR_GREEN_LOFF].title = SANE_I18N("Green lamp off");
s->opt[OPT_OVR_GREEN_LOFF].desc = SANE_I18N("Defines green lamp off parameter");
s->opt[OPT_OVR_GREEN_LOFF].type = SANE_TYPE_INT;
s->opt[OPT_OVR_GREEN_LOFF].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_OVR_GREEN_LOFF].constraint.range = &loff_range;
s->val[OPT_OVR_GREEN_LOFF].w = adj->glampoff;
s->opt[OPT_OVR_BLUE_LOFF].name = "bluelamp-off";
s->opt[OPT_OVR_BLUE_LOFF].title = SANE_I18N("Blue lamp off");
s->opt[OPT_OVR_BLUE_LOFF].desc = SANE_I18N("Defines blue lamp off parameter");
s->opt[OPT_OVR_BLUE_LOFF].type = SANE_TYPE_INT;
s->opt[OPT_OVR_BLUE_LOFF].constraint_type = SANE_CONSTRAINT_RANGE;
s->opt[OPT_OVR_BLUE_LOFF].constraint.range = &loff_range;
s->val[OPT_OVR_BLUE_LOFF].w = adj->blampoff;
/* only available for CIS devices*/
if( !usb_IsCISDevice( dev )) {
_DISABLE(OPT_OVR_RED_LOFF);
_DISABLE(OPT_OVR_GREEN_LOFF);
_DISABLE(OPT_OVR_BLUE_LOFF);
}
/* "Button" group*/
s->opt[OPT_BUTTON_GROUP].title = SANE_I18N("Buttons");
s->opt[OPT_BUTTON_GROUP].desc = "";
s->opt[OPT_BUTTON_GROUP].type = SANE_TYPE_GROUP;
s->opt[OPT_BUTTON_GROUP].cap = SANE_CAP_ADVANCED;
/* scanner buttons */
for( i = OPT_BUTTON_0; i <= OPT_BUTTON_LAST; i++ ) {
char name [12];
char title [128];
sprintf (name, "button %d", i - OPT_BUTTON_0);
sprintf (title, "Scanner button %d", i - OPT_BUTTON_0);
s->opt[i].name = strdup(name);
s->opt[i].title = strdup(title);
s->opt[i].desc = SANE_I18N("This option reflects the status "
"of the scanner buttons.");
s->opt[i].type = SANE_TYPE_BOOL;
s->opt[i].cap = SANE_CAP_SOFT_DETECT |
SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
if (i - OPT_BUTTON_0 >= dev->usbDev.Caps.bButtons )
_DISABLE(i);
s->opt[i].unit = SANE_UNIT_NONE;
s->opt[i].size = sizeof (SANE_Word);
s->opt[i].constraint_type = SANE_CONSTRAINT_NONE;
s->opt[i].constraint.range = 0;
s->val[i].w = SANE_FALSE;
}
usb_UpdateButtonStatus( s );
return SANE_STATUS_GOOD;
}
/** Function to retrieve the vendor and product id from a given string
* @param src - string, that should be investigated
* @param dest - pointer to a string to receive the USB ID
*/
static void
decodeUsbIDs( char *src, char **dest )
{
const char *name;
char *tmp = *dest;
int len = strlen(_SECTION);
if( isspace(src[len])) {
strncpy( tmp, &src[len+1], (strlen(src)-(len+1)));
tmp[(strlen(src)-(len+1))] = '\0';
}
name = tmp;
name = sanei_config_skip_whitespace( name );
if( '\0' == name[0] ) {
DBG( _DBG_SANE_INIT, "next device uses autodetection\n" );
} else {
u_short pi = 0, vi = 0;
if( *name ) {
name = sanei_config_get_string( name, &tmp );
if( tmp ) {
vi = strtol( tmp, 0, 0 );
free( tmp );
}
}
name = sanei_config_skip_whitespace( name );
if( *name ) {
name = sanei_config_get_string( name, &tmp );
if( tmp ) {
pi = strtol( tmp, 0, 0 );
free( tmp );
}
}
/* create what we need to go through our device list...*/
sprintf( *dest, "0x%04X-0x%04X", vi, pi );
DBG( _DBG_SANE_INIT, "next device is a USB device (%s)\n", *dest );
}
}
#define _INT 0
#define _FLOAT 1
/** function to decode an value and give it back to the caller.
* @param src - pointer to the source string to check
* @param opt - string that keeps the option name to check src for
* @param what - _FLOAT or _INT
* @param result - pointer to the var that should receive our result
* @param def - default value that result should be in case of any error
* @return The function returns SANE_TRUE if the option has been found,
* if not, it returns SANE_FALSE
*/
static SANE_Bool
decodeVal( char *src, char *opt, int what, void *result, void *def )
{
char *tmp, *tmp2;
const char *name;
/* skip the option string */
name = (const char*)&src[strlen("option")];
/* get the name of the option */
name = sanei_config_get_string( name, &tmp );
if( tmp ) {
/* on success, compare wiht the given one */
if( 0 == strcmp( tmp, opt )) {
DBG( _DBG_SANE_INIT, "Decoding option >%s<\n", opt );
if( _INT == what ) {
/* assign the default value for this option... */
*((int*)result) = *((int*)def);
if( *name ) {
/* get the configuration value and decode it */
name = sanei_config_get_string( name, &tmp2 );
if( tmp2 ) {
*((int*)result) = strtol( tmp2, 0, 0 );
free( tmp2 );
}
}
free( tmp );
return SANE_TRUE;
} else if( _FLOAT == what ) {
/* assign the default value for this option... */
*((double*)result) = *((double*)def);
if( *name ) {
/* get the configuration value and decode it */
name = sanei_config_get_string( name, &tmp2 );
if( tmp2 ) {
*((double*)result) = strtod( tmp2, 0 );
free( tmp2 );
}
}
free( tmp );
return SANE_TRUE;
}
}
free( tmp );
}
return SANE_FALSE;
}
/** function to retrive the device name of a given string
* @param src - string that keeps the option name to check src for
* @param dest - pointer to the string, that should receive the detected
* devicename
* @return The function returns SANE_TRUE if the devicename has been found,
* if not, it returns SANE_FALSE
*/
static SANE_Bool
decodeDevName( char *src, char *dest )
{
char *tmp;
const char *name;
if( 0 == strncmp( "device", src, 6 )) {
name = (const char*)&src[strlen("device")];
name = sanei_config_skip_whitespace( name );
DBG( _DBG_SANE_INIT, "Decoding device name >%s<\n", name );
if( *name ) {
name = sanei_config_get_string( name, &tmp );
if( tmp ) {
strcpy( dest, tmp );
free( tmp );
return SANE_TRUE;
}
}
}
return SANE_FALSE;
}
/** attach a device to the backend
*/
static SANE_Status
attach( const char *dev_name, CnfDef *cnf, Plustek_Device **devp )
{
int cntr;
int result;
int handle;
Plustek_Device *dev;
DBG( _DBG_SANE_INIT, "attach (%s, %p, %p)\n",
dev_name, (void *)cnf, (void *)devp);
/* already attached ?*/
for( dev = first_dev; dev; dev = dev->next ) {
if( 0 == strcmp( dev->sane.name, dev_name )) {
if( devp )
*devp = dev;
return SANE_STATUS_GOOD;
}
}
/* allocate some memory for the device */
dev = malloc( sizeof (*dev));
if( NULL == dev )
return SANE_STATUS_NO_MEM;
/* assign all the stuff we need fo this device... */
memset(dev, 0, sizeof (*dev));
dev->fd = -1;
dev->name = strdup(dev_name); /* hold it double to avoid */
dev->sane.name = dev->name; /* compiler warnings */
dev->sane.vendor = "Plustek";
dev->initialized = -1; /* will be used as index too */
dev->calFile = NULL;
dev->transferRate = DEFAULT_RATE;
memcpy( &dev->adj, &cnf->adj, sizeof(AdjDef));
show_cnf( cnf );
strncpy( dev->usbId, cnf->usbId, _MAX_ID_LEN );
if( cnf->adj.lampOff >= 0 )
dev->usbDev.dwLampOnPeriod = cnf->adj.lampOff;
if( cnf->adj.lampOffOnEnd >= 0 )
dev->usbDev.bLampOffOnEnd = cnf->adj.lampOffOnEnd;
/* go ahead and open the scanner device */
handle = usbDev_open( dev, usbDevs, SANE_FALSE );
if( handle < 0 ) {
DBG( _DBG_ERROR,"open failed: %d\n", handle );
return SANE_STATUS_IO_ERROR;
}
/* okay, so assign the handle and the scanner type */
dev->fd = handle;
if( usb_IsSheetFedDevice( dev ))
dev->sane.type = SANE_I18N("sheetfed scanner");
else
dev->sane.type = SANE_I18N("flatbed scanner");
result = usbDev_getCaps( dev );
if( result < 0 ) {
DBG( _DBG_ERROR, "usbDev_getCaps() failed(%d)\n", result);
usbDev_close(dev);
return SANE_STATUS_IO_ERROR;
}
/* save the info we got from the driver */
DBG( _DBG_INFO, "Scanner information:\n" );
if( NULL != dev->usbDev.ModelStr )
dev->sane.model = dev->usbDev.ModelStr;
else
dev->sane.model = "USB-Device";
DBG( _DBG_INFO, "Vendor : %s\n", dev->sane.vendor );
DBG( _DBG_INFO, "Model : %s\n", dev->sane.model );
DBG( _DBG_INFO, "Flags : 0x%08lx\n", dev->caps.dwFlag );
dev->max_x = dev->caps.wMaxExtentX*MM_PER_INCH/_MEASURE_BASE;
dev->max_y = dev->caps.wMaxExtentY*MM_PER_INCH/_MEASURE_BASE;
/* calculate the size of the resolution list +
* one more to avoid a buffer overflow, then allocate it...
*/
dev->res_list = (SANE_Int *)
calloc((((dev->usbDev.Caps.OpticDpi.x*16)-_DEF_DPI)/25+1),
sizeof (SANE_Int));
if (NULL == dev->res_list) {
DBG( _DBG_ERROR, "calloc failed: %s\n", strerror(errno));
usbDev_close(dev);
return SANE_STATUS_INVAL;
}
/* build up the resolution table */
dev->res_list_size = 0;
for(cntr = _DEF_DPI; cntr <= (dev->usbDev.Caps.OpticDpi.x*16); cntr += 25){
dev->res_list_size++;
dev->res_list[dev->res_list_size - 1] = (SANE_Int)cntr;
}
/* set the limits */
dev->dpi_range.min = _DEF_DPI;
dev->dpi_range.max = dev->usbDev.Caps.OpticDpi.x * 2;
dev->x_range.max = SANE_FIX(dev->max_x);
dev->y_range.max = SANE_FIX(dev->max_y);
dev->fd = handle;
drvclose( dev );
DBG( _DBG_SANE_INIT, "attach: model = >%s<\n", dev->sane.model );
++num_devices;
dev->next = first_dev;
first_dev = dev;
if (devp)
*devp = dev;
return SANE_STATUS_GOOD;
}
/** function to preset a configuration structure
* @param cnf - pointer to the structure that should be initialized
*/
static void
init_config_struct( CnfDef *cnf )
{
memset(cnf, 0, sizeof(CnfDef));
cnf->adj.warmup = -1;
cnf->adj.lampOff = -1;
cnf->adj.lampOffOnEnd = -1;
cnf->adj.posShadingY = -1;
cnf->adj.tpaShadingY = -1;
cnf->adj.negShadingY = -1;
cnf->adj.rgain = -1;
cnf->adj.ggain = -1;
cnf->adj.bgain = -1;
cnf->adj.rofs = -1;
cnf->adj.gofs = -1;
cnf->adj.bofs = -1;
cnf->adj.rlampoff = -1;
cnf->adj.glampoff = -1;
cnf->adj.blampoff = -1;
cnf->adj.incDarkTgt = 1;
cnf->adj.graygamma = 1.0;
cnf->adj.rgamma = 1.0;
cnf->adj.ggamma = 1.0;
cnf->adj.bgamma = 1.0;
}
/** intialize the backend
*/
SANE_Status
sane_init( SANE_Int *version_code, SANE_Auth_Callback authorize )
{
char str[PATH_MAX] = _DEFAULT_DEVICE;
CnfDef config;
size_t len;
FILE *fp;
DBG_INIT();
sanei_usb_init();
sanei_lm983x_init();
sanei_thread_init();
sanei_access_init(STRINGIFY(BACKEND_NAME));
#if defined PACKAGE && defined VERSION
DBG( _DBG_INFO, "Plustek backend V"BACKEND_VERSION", part of "
PACKAGE " " VERSION "\n");
#else
DBG( _DBG_INFO, "Plustek backend V"BACKEND_VERSION"\n" );
#endif
/* do some presettings... */
auth = authorize;
first_dev = NULL;
first_handle = NULL;
num_devices = 0;
usbDevs = NULL;
/* initialize the configuration structure */
init_config_struct( &config );
/* try and get a list of all connected AND supported devices */
usbGetList( &usbDevs );
if( version_code != NULL )
*version_code = SANE_VERSION_CODE(SANE_CURRENT_MAJOR, V_MINOR, 0);
fp = sanei_config_open( PLUSTEK_CONFIG_FILE );
/* default to _DEFAULT_DEVICE instead of insisting on config file */
if( NULL == fp ) {
return attach( _DEFAULT_DEVICE, &config, 0 );
}
while( sanei_config_read( str, sizeof(str), fp)) {
DBG( _DBG_SANE_INIT, ">%s<\n", str );
if( str[0] == '#') /* ignore line comments */
continue;
len = strlen(str);
if( 0 == len )
continue; /* ignore empty lines */
/* check for options */
if( 0 == strncmp(str, "option", 6)) {
int ival;
double dval;
ival = -1;
decodeVal( str, "warmup", _INT, &config.adj.warmup, &ival);
decodeVal( str, "lampOff", _INT, &config.adj.lampOff, &ival);
decodeVal( str, "lOffOnEnd", _INT, &config.adj.lampOffOnEnd,&ival);
decodeVal( str, "posShadingY",_INT, &config.adj.posShadingY,&ival);
decodeVal( str, "tpaShadingY",_INT, &config.adj.tpaShadingY,&ival);
decodeVal( str, "negShadingY",_INT, &config.adj.negShadingY,&ival);
decodeVal( str, "red_gain", _INT, &config.adj.rgain, &ival);
decodeVal( str, "green_gain", _INT, &config.adj.ggain, &ival);
decodeVal( str, "blue_gain", _INT, &config.adj.bgain, &ival);
decodeVal( str, "red_offset", _INT, &config.adj.rofs, &ival);
decodeVal( str, "green_offset" , _INT, &config.adj.gofs, &ival);
decodeVal( str, "blue_offset", _INT, &config.adj.bofs, &ival);
decodeVal( str, "red_lampoff", _INT, &config.adj.rlampoff,&ival);
decodeVal( str, "green_lampoff", _INT, &config.adj.glampoff,&ival);
decodeVal( str, "blue_lampoff", _INT, &config.adj.blampoff,&ival);
ival = 0;
decodeVal( str, "enableTPA", _INT, &config.adj.enableTpa, &ival);
decodeVal( str, "cacheCalData",
_INT, &config.adj.cacheCalData,&ival);
decodeVal( str, "altCalibration",
_INT, &config.adj.altCalibrate,&ival);
decodeVal( str, "skipCalibration",
_INT, &config.adj.skipCalibration,&ival);
decodeVal( str, "skipFine",
_INT, &config.adj.skipFine,&ival);
decodeVal( str, "skipFineWhite",
_INT, &config.adj.skipFineWhite,&ival);
decodeVal( str, "skipDarkStrip",
_INT, &config.adj.skipDarkStrip,&ival);
decodeVal( str, "incDarkTarget",
_INT, &config.adj.incDarkTgt,&ival);
decodeVal( str, "invertNegatives",
_INT, &config.adj.invertNegatives,&ival);
decodeVal( str, "disableSpeedup",
_INT, &config.adj.disableSpeedup,&ival);
decodeVal( str, "posOffX", _INT, &config.adj.pos.x, &ival );
decodeVal( str, "posOffY", _INT, &config.adj.pos.y, &ival );
decodeVal( str, "negOffX", _INT, &config.adj.neg.x, &ival );
decodeVal( str, "negOffY", _INT, &config.adj.neg.y, &ival );
decodeVal( str, "tpaOffX", _INT, &config.adj.tpa.x, &ival );
decodeVal( str, "tpaOffY", _INT, &config.adj.tpa.y, &ival );
decodeVal( str, "mov", _INT, &config.adj.mov, &ival);
dval = 1.0;
decodeVal( str, "grayGamma", _FLOAT, &config.adj.graygamma,&dval);
decodeVal( str, "redGamma", _FLOAT, &config.adj.rgamma, &dval );
decodeVal( str, "greenGamma", _FLOAT, &config.adj.ggamma, &dval );
decodeVal( str, "blueGamma", _FLOAT, &config.adj.bgamma, &dval );
continue;
/* check for sections: */
} else if( 0 == strncmp( str, _SECTION, strlen(_SECTION))) {
char *tmp;
/* new section, try and attach previous device */
if( config.devName[0] != '\0' ) {
attach( config.devName, &config, 0 );
} else {
if( first_dev != NULL ) {
DBG( _DBG_WARNING, "section contains no device name,"
" ignored!\n" );
}
}
/* re-initialize the configuration structure */
init_config_struct( &config );
tmp = config.usbId;
decodeUsbIDs( str, &tmp );
DBG( _DBG_SANE_INIT, "... next device\n" );
continue;
} else if( SANE_TRUE == decodeDevName( str, config.devName )) {
continue;
}
/* ignore other stuff... */
DBG( _DBG_SANE_INIT, "ignoring >%s<\n", str );
}
fclose (fp);
/* try to attach the last device in the config file... */
if( config.devName[0] != '\0' )
attach( config.devName, &config, 0 );
return SANE_STATUS_GOOD;
}
/** cleanup the backend...
*/
void
sane_exit( void )
{
DevList *tmp;
Plustek_Device *dev, *next;
DBG( _DBG_SANE_INIT, "sane_exit\n" );
for( dev = first_dev; dev; ) {
next = dev->next;
/* call the shutdown function of each device... */
usbDev_shutdown( dev );
/* we're doin' this to avoid compiler warnings as dev->sane.name
* is defined as const char*
*/
if( dev->sane.name )
free( dev->name );
if( dev->calFile )
free( dev->calFile );
if( dev->res_list )
free( dev->res_list );
free( dev );
dev = next;
}
if( devlist )
free( devlist );
while( usbDevs ) {
tmp = usbDevs->next;
free( usbDevs );
usbDevs = tmp;
}
usbDevs = NULL;
devlist = NULL;
auth = NULL;
first_dev = NULL;
first_handle = NULL;
}
/** return a list of all devices
*/
SANE_Status
sane_get_devices(const SANE_Device ***device_list, SANE_Bool local_only )
{
int i;
Plustek_Device *dev;
DBG(_DBG_SANE_INIT, "sane_get_devices (%p, %ld)\n",
(void *)device_list, (long) local_only);
/* already called, so cleanup */
if( devlist )
free( devlist );
devlist = malloc((num_devices + 1) * sizeof (devlist[0]));
if ( NULL == devlist )
return SANE_STATUS_NO_MEM;
i = 0;
for (dev = first_dev; i < num_devices; dev = dev->next)
devlist[i++] = &dev->sane;
devlist[i++] = 0;
*device_list = devlist;
return SANE_STATUS_GOOD;
}
/** open the sane device
*/
SANE_Status
sane_open( SANE_String_Const devicename, SANE_Handle* handle )
{
SANE_Status status;
Plustek_Device *dev;
Plustek_Scanner *s;
CnfDef config;
DBG( _DBG_SANE_INIT, "sane_open - %s\n", devicename );
if( devicename[0] ) {
for( dev = first_dev; dev; dev = dev->next ) {
if( strcmp( dev->sane.name, devicename ) == 0 )
break;
}
if( !dev ) {
memset(&config, 0, sizeof(CnfDef));
status = attach( devicename, &config, &dev );
if( SANE_STATUS_GOOD != status )
return status;
}
} else {
/* empty devicename -> use first device */
dev = first_dev;
}
if( !dev )
return SANE_STATUS_INVAL;
s = malloc (sizeof (*s));
if( NULL == s )
return SANE_STATUS_NO_MEM;
memset(s, 0, sizeof (*s));
s->r_pipe = -1;
s->w_pipe = -1;
s->hw = dev;
s->scanning = SANE_FALSE;
s->calibrating = SANE_FALSE;
init_options(s);
/* insert newly opened handle into list of open handles: */
s->next = first_handle;
first_handle = s;
*handle = s;
return SANE_STATUS_GOOD;
}
/**
*/
void
sane_close( SANE_Handle handle )
{
Plustek_Scanner *prev, *s = handle;
DBG( _DBG_SANE_INIT, "sane_close\n" );
if( s->calibrating )
do_cancel( s, SANE_FALSE );
/* remove handle from list of open handles: */
prev = 0;
for( s = first_handle; s; s = s->next ) {
if( s == handle )
break;
prev = s;
}
if (!s) {
DBG( _DBG_ERROR, "close: invalid handle %p\n", handle);
return;
}
close_pipe( s );
if( NULL != s->buf )
free(s->buf);
drvclose( s->hw );
if (prev)
prev->next = s->next;
else
first_handle = s->next;
free(s);
}
/** goes through a string list and returns the start-address of the string
* that has been found, or NULL on error
*/
static const SANE_String_Const*
search_string_list( const SANE_String_Const *list, SANE_String value )
{
while( *list != NULL && strcmp(value, *list) != 0 )
++list;
if( *list == NULL )
return NULL;
return list;
}
/**
*/
static int
do_calibration( void *args )
{
Plustek_Scanner *s = (Plustek_Scanner *)args;
Plustek_Device *dev = s->hw;
DCapsDef *caps = &dev->usbDev.Caps;
int scanmode, rc;
int modes[] = { COLOR_BW, COLOR_256GRAY, COLOR_GRAY16,
COLOR_TRUE24, COLOR_TRUE48 };
thread_entry();
/* if the device does only support color scanning, there's no need
* to calibrate the gray modes
*/
if (caps->workaroundFlag & _WAF_GRAY_FROM_COLOR)
scanmode = 3;
else
scanmode = 0;
for ( ; scanmode < 5; scanmode++ ) {
if (caps->workaroundFlag & _WAF_ONLY_8BIT) {
if ((modes[scanmode] == COLOR_GRAY16) ||
(modes[scanmode] == COLOR_TRUE48)) {
continue;
}
}
dev->scanning.dwFlag |= SCANFLAG_Calibration;
if (SANE_STATUS_GOOD == local_sane_start(s, modes[scanmode])) {
/* prepare for scanning: speed-test, warmup, calibration */
rc = usbDev_Prepare( dev, s->buf );
if( rc != 0 || scanmode == 4) {
if (rc != 0 )
DBG(_DBG_INFO,"Calibration canceled!\n");
m_fStart = SANE_TRUE;
m_fAutoPark = SANE_TRUE;
}
drvclose( dev );
if( rc != 0 )
break;
} else {
DBG(_DBG_ERROR, "local_sane_start() failed!\n");
break;
}
}
/* restore the settings */
dev->scanning.dwFlag &= ~SCANFLAG_Calibration;
s->calibrating = SANE_FALSE;
return 0;
}
/** return or set the parameter values, also do some checks
*/
SANE_Status
sane_control_option( SANE_Handle handle, SANE_Int option,
SANE_Action action, void *value, SANE_Int *info )
{
Plustek_Scanner *s = (Plustek_Scanner *)handle;
Plustek_Device *dev = s->hw;
AdjDef *adj = &dev->adj;
DCapsDef *caps = &dev->usbDev.Caps;
SANE_Status status;
const SANE_String_Const *optval;
int scanmode;
if (s->scanning)
return SANE_STATUS_DEVICE_BUSY;
/* in calibration mode, we do not allow setting any value! */
if(s->calibrating) {
if (action == SANE_ACTION_SET_VALUE) {
if (option == OPT_CALIBRATE) {
if( NULL != info )
*info |= SANE_INFO_RELOAD_OPTIONS;
do_cancel(s, SANE_TRUE);
return SANE_STATUS_GOOD;
}
/* okay, we need some exceptions */
switch (option) {
case OPT_TL_X:
case OPT_TL_Y:
case OPT_BR_X:
case OPT_BR_Y: break;
default: return SANE_STATUS_DEVICE_BUSY;
}
}
}
if ((option < 0) || (option >= NUM_OPTIONS))
return SANE_STATUS_INVAL;
if (NULL != info)
*info = 0;
switch( action ) {
case SANE_ACTION_GET_VALUE:
switch (option) {
case OPT_PREVIEW:
case OPT_NUM_OPTS:
case OPT_RESOLUTION:
case OPT_BIT_DEPTH:
case OPT_TL_X:
case OPT_TL_Y:
case OPT_BR_X:
case OPT_BR_Y:
case OPT_LAMPSWITCH:
case OPT_CUSTOM_GAMMA:
case OPT_LAMPOFF_ONEND:
case OPT_LOFF4DARK:
case OPT_CACHECAL:
case OPT_SPEEDUP:
case OPT_OVR_REDGAIN:
case OPT_OVR_GREENGAIN:
case OPT_OVR_BLUEGAIN:
case OPT_OVR_REDOFS:
case OPT_OVR_GREENOFS:
case OPT_OVR_BLUEOFS:
case OPT_OVR_RED_LOFF:
case OPT_OVR_GREEN_LOFF:
case OPT_OVR_BLUE_LOFF:
case OPT_LAMPOFF_TIMER:
case OPT_WARMUPTIME:
*(SANE_Word *)value = s->val[option].w;
break;
case OPT_BUTTON_0:
if(!s->calibrating)
usb_UpdateButtonStatus(s);
case OPT_BUTTON_1:
case OPT_BUTTON_2:
case OPT_BUTTON_3:
case OPT_BUTTON_4:
/* copy the button state */
*(SANE_Word*)value = s->val[option].w;
/* clear the button state */
s->val[option].w = SANE_FALSE;
break;
case OPT_CONTRAST:
case OPT_BRIGHTNESS:
*(SANE_Word *)value =
(s->val[option].w << SANE_FIXED_SCALE_SHIFT);
break;
case OPT_MODE:
case OPT_EXT_MODE:
strcpy ((char *) value,
s->opt[option].constraint.string_list[s->val[option].w]);
break;
/* word array options: */
case OPT_GAMMA_VECTOR:
DBG( _DBG_INFO, "Reading MASTER gamma.\n" );
memcpy( value, s->val[option].wa, s->opt[option].size );
break;
case OPT_GAMMA_VECTOR_R:
DBG( _DBG_INFO, "Reading RED gamma.\n" );
memcpy( value, s->val[option].wa, s->opt[option].size );
break;
case OPT_GAMMA_VECTOR_G:
DBG( _DBG_INFO, "Reading GREEN gamma.\n" );
memcpy( value, s->val[option].wa, s->opt[option].size );
break;
case OPT_GAMMA_VECTOR_B:
DBG( _DBG_INFO, "Reading BLUE gamma.\n" );
memcpy( value, s->val[option].wa, s->opt[option].size );
break;
default:
return SANE_STATUS_INVAL;
}
break;
case SANE_ACTION_SET_VALUE:
status = sanei_constrain_value( s->opt + option, value, info );
if( SANE_STATUS_GOOD != status )
return status;
optval = NULL;
if( SANE_CONSTRAINT_STRING_LIST == s->opt[option].constraint_type ) {
optval = search_string_list( s->opt[option].constraint.string_list,
(char *) value);
if( NULL == optval )
return SANE_STATUS_INVAL;
}
switch (option) {
case OPT_RESOLUTION: {
int n;
int min_d = dev->res_list[dev->res_list_size - 1];
int v = *(SANE_Word *)value;
int best = v;
for( n = 0; n < dev->res_list_size; n++ ) {
int d = abs(v - dev->res_list[n]);
if( d < min_d ) {
min_d = d;
best = dev->res_list[n];
}
}
s->val[option].w = (SANE_Word)best;
if( v != best )
*(SANE_Word *)value = best;
if( NULL != info ) {
if( v != best )
*info |= SANE_INFO_INEXACT;
*info |= SANE_INFO_RELOAD_PARAMS;
}
break;
}
case OPT_PREVIEW:
case OPT_BIT_DEPTH:
case OPT_TL_X:
case OPT_TL_Y:
case OPT_BR_X:
case OPT_BR_Y:
s->val[option].w = *(SANE_Word *)value;
if( NULL != info )
*info |= SANE_INFO_RELOAD_PARAMS;
break;
case OPT_CACHECAL:
s->val[option].w = *(SANE_Word *)value;
dev->adj.cacheCalData = s->val[option].w;
if( !dev->adj.cacheCalData )
_DISABLE(OPT_CALIBRATE);
else {
if( usb_IsCISDevice(dev) || dev->adj.altCalibrate)
_ENABLE(OPT_CALIBRATE);
}
if( NULL != info )
*info |= SANE_INFO_RELOAD_OPTIONS;
break;
case OPT_CALIBRATE:
if (s->calibrating) {
do_cancel( s, SANE_FALSE );
s->calibrating = SANE_FALSE;
} else {
sc = s;
s->r_pipe = -1;
s->w_pipe = -1;
s->reader_pid = sanei_thread_begin(do_calibration, s);
s->calibrating = SANE_TRUE;
signal( SIGCHLD, sig_chldhandler );
}
if (NULL != info)
*info |= SANE_INFO_RELOAD_OPTIONS;
break;
case OPT_SPEEDUP:
s->val[option].w = *(SANE_Word *)value;
dev->adj.disableSpeedup = !(s->val[option].w);
break;
case OPT_LOFF4DARK:
s->val[option].w = *(SANE_Word *)value;
dev->adj.skipDarkStrip = !(s->val[option].w);
break;
case OPT_LAMPSWITCH:
s->val[option].w = *(SANE_Word *)value;
usb_LampSwitch( dev, s->val[option].w );
if( s->val[option].w == 0 )
usb_StopLampTimer( dev );
else
usb_StartLampTimer( dev );
break;
case OPT_LAMPOFF_ONEND:
s->val[option].w = *(SANE_Word *)value;
dev->adj.lampOffOnEnd = s->val[option].w;
usb_CheckAndCopyAdjs( dev );
break;
case OPT_CUSTOM_GAMMA:
s->val[option].w = *(SANE_Word *)value;
if( NULL != info )
*info |= SANE_INFO_RELOAD_PARAMS | SANE_INFO_RELOAD_OPTIONS;
scanmode = getScanMode( s );
_DISABLE(OPT_GAMMA_VECTOR);
_DISABLE(OPT_GAMMA_VECTOR_R);
_DISABLE(OPT_GAMMA_VECTOR_G);
_DISABLE(OPT_GAMMA_VECTOR_B);
if( SANE_TRUE == s->val[option].w ) {
DBG( _DBG_INFO, "Using custom gamma settings.\n" );
if((scanmode == COLOR_256GRAY) ||
(scanmode == COLOR_GRAY16)) {
_ENABLE(OPT_GAMMA_VECTOR);
} else {
_ENABLE(OPT_GAMMA_VECTOR_R);
_ENABLE(OPT_GAMMA_VECTOR_G);
_ENABLE(OPT_GAMMA_VECTOR_B);
}
} else {
DBG( _DBG_INFO, "NOT using custom gamma settings.\n" );
initGammaSettings( s );
if((scanmode == COLOR_256GRAY) ||
(scanmode == COLOR_GRAY16)) {
_DISABLE(OPT_GAMMA_VECTOR);
} else {
_DISABLE(OPT_GAMMA_VECTOR_R);
_DISABLE(OPT_GAMMA_VECTOR_G);
_DISABLE(OPT_GAMMA_VECTOR_B);
}
}
break;
case OPT_LAMPOFF_TIMER:
s->val[option].w = (*(SANE_Word *)value);
adj->lampOff = (*(SANE_Word *)value);
usb_CheckAndCopyAdjs( dev );
break;
case OPT_WARMUPTIME:
s->val[option].w = (*(SANE_Word *)value);
adj->warmup = (*(SANE_Word *)value);
usb_CheckAndCopyAdjs( dev );
break;
case OPT_OVR_REDGAIN:
s->val[option].w = (*(SANE_Word *)value);
adj->rgain = (*(SANE_Word *)value);
break;
case OPT_OVR_GREENGAIN:
s->val[option].w = (*(SANE_Word *)value);
adj->ggain = (*(SANE_Word *)value);
break;
case OPT_OVR_BLUEGAIN:
s->val[option].w = (*(SANE_Word *)value);
adj->bgain = (*(SANE_Word *)value);
break;
case OPT_OVR_REDOFS:
s->val[option].w = (*(SANE_Word *)value);
adj->rofs = (*(SANE_Word *)value);
break;
case OPT_OVR_GREENOFS:
s->val[option].w = (*(SANE_Word *)value);
adj->gofs = (*(SANE_Word *)value);
break;
case OPT_OVR_BLUEOFS:
s->val[option].w = (*(SANE_Word *)value);
adj->bofs = (*(SANE_Word *)value);
break;
case OPT_OVR_RED_LOFF:
s->val[option].w = (*(SANE_Word *)value);
adj->rlampoff = (*(SANE_Word *)value);
break;
case OPT_OVR_GREEN_LOFF:
s->val[option].w = (*(SANE_Word *)value);
adj->glampoff = (*(SANE_Word *)value);
break;
case OPT_OVR_BLUE_LOFF:
s->val[option].w = (*(SANE_Word *)value);
adj->blampoff = (*(SANE_Word *)value);
break;
case OPT_CONTRAST:
case OPT_BRIGHTNESS:
s->val[option].w =
((*(SANE_Word *)value) >> SANE_FIXED_SCALE_SHIFT);
break;
case OPT_MODE:
s->val[option].w = optval - s->opt[option].constraint.string_list;
scanmode = getScanMode( s );
_ENABLE(OPT_CONTRAST);
_ENABLE(OPT_BIT_DEPTH);
_ENABLE(OPT_CUSTOM_GAMMA);
if (scanmode == COLOR_BW) {
_DISABLE(OPT_CONTRAST);
_DISABLE(OPT_CUSTOM_GAMMA);
_DISABLE(OPT_BIT_DEPTH);
}
if (caps->workaroundFlag & _WAF_ONLY_8BIT)
_DISABLE(OPT_BIT_DEPTH);
_DISABLE(OPT_GAMMA_VECTOR);
_DISABLE(OPT_GAMMA_VECTOR_R);
_DISABLE(OPT_GAMMA_VECTOR_G);
_DISABLE(OPT_GAMMA_VECTOR_B);
if( s->val[OPT_CUSTOM_GAMMA].w &&
!(s->opt[OPT_CUSTOM_GAMMA].cap & SANE_CAP_INACTIVE)) {
if((scanmode == COLOR_256GRAY) ||
(scanmode == COLOR_GRAY16)) {
_ENABLE(OPT_GAMMA_VECTOR);
} else {
_ENABLE(OPT_GAMMA_VECTOR_R);
_ENABLE(OPT_GAMMA_VECTOR_G);
_ENABLE(OPT_GAMMA_VECTOR_B);
}
}
if( NULL != info )
*info |= SANE_INFO_RELOAD_OPTIONS | SANE_INFO_RELOAD_PARAMS;
break;
case OPT_EXT_MODE: {
s->val[option].w = optval - s->opt[option].constraint.string_list;
/* change the area and mode_list when changing the source
*/
if( s->val[option].w == 0 ) {
dev->scanning.sParam.bSource = SOURCE_Reflection;
dev->dpi_range.min = _DEF_DPI;
dev->x_range.max = SANE_FIX(dev->max_x);
dev->y_range.max = SANE_FIX(dev->max_y);
s->val[OPT_TL_X].w = SANE_FIX(_DEFAULT_TLX);
s->val[OPT_TL_Y].w = SANE_FIX(_DEFAULT_TLY);
s->val[OPT_BR_X].w = SANE_FIX(_DEFAULT_BRX);
s->val[OPT_BR_Y].w = SANE_FIX(_DEFAULT_BRY);
s->opt[OPT_MODE].constraint.string_list = mode_list;
s->val[OPT_MODE].w = 2; /* HEINER COLOR_TRUE24;*/
} else {
dev->dpi_range.min = _TPAMinDpi;
if( s->val[option].w == 1 ) {
dev->scanning.sParam.bSource = SOURCE_Transparency;
if( dev->usbDev.Caps.wFlags & DEVCAPSFLAG_LargeTPA ) {
dev->x_range.max = SANE_FIX(_SCALE(_TPALargePageWidth));
dev->y_range.max = SANE_FIX(_SCALE(_TPALargePageHeight));
} else {
dev->x_range.max = SANE_FIX(_SCALE(_TPAPageWidth));
dev->y_range.max = SANE_FIX(_SCALE(_TPAPageHeight));
}
s->val[OPT_TL_X].w = SANE_FIX(_DEFAULT_TP_TLX);
s->val[OPT_TL_Y].w = SANE_FIX(_DEFAULT_TP_TLY);
s->val[OPT_BR_X].w = SANE_FIX(_DEFAULT_TP_BRX);
s->val[OPT_BR_Y].w = SANE_FIX(_DEFAULT_TP_BRY);
} else {
dev->scanning.sParam.bSource = SOURCE_Negative;
if( dev->usbDev.Caps.wFlags & DEVCAPSFLAG_LargeTPA ) {
dev->x_range.max = SANE_FIX(_SCALE(_NegLargePageWidth));
dev->y_range.max = SANE_FIX(_SCALE(_NegLargePageHeight));
} else {
dev->x_range.max = SANE_FIX(_SCALE(_NegPageWidth));
dev->y_range.max = SANE_FIX(_SCALE(_NegPageHeight));
}
s->val[OPT_TL_X].w = SANE_FIX(_DEFAULT_NEG_TLX);
s->val[OPT_TL_Y].w = SANE_FIX(_DEFAULT_NEG_TLY);
s->val[OPT_BR_X].w = SANE_FIX(_DEFAULT_NEG_BRX);
s->val[OPT_BR_Y].w = SANE_FIX(_DEFAULT_NEG_BRY);
}
s->opt[OPT_MODE].constraint.string_list = &mode_list[2];
s->val[OPT_MODE].w = 0; /* COLOR_24 is the default */
}
if( s->val[OPT_LAMPSWITCH].w != 0 ) {
usb_LampSwitch( dev, s->val[OPT_LAMPSWITCH].w );
if( s->val[OPT_LAMPSWITCH].w == 0 )
usb_StopLampTimer( dev );
else
usb_StartLampTimer( dev );
}
_ENABLE(OPT_CONTRAST);
if( NULL != info )
*info |= SANE_INFO_RELOAD_OPTIONS | SANE_INFO_RELOAD_PARAMS;
break;
}
case OPT_GAMMA_VECTOR:
DBG( _DBG_INFO, "Setting MASTER gamma.\n" );
memcpy( s->val[option].wa, value, s->opt[option].size );
checkGammaSettings(s);
if( NULL != info )
*info |= SANE_INFO_RELOAD_PARAMS;
break;
case OPT_GAMMA_VECTOR_R:
DBG( _DBG_INFO, "Setting RED gamma.\n" );
memcpy( s->val[option].wa, value, s->opt[option].size );
checkGammaSettings(s);
if( NULL != info )
*info |= SANE_INFO_RELOAD_PARAMS;
break;
case OPT_GAMMA_VECTOR_G:
DBG( _DBG_INFO, "Setting GREEN gamma.\n" );
memcpy( s->val[option].wa, value, s->opt[option].size );
checkGammaSettings(s);
if( NULL != info )
*info |= SANE_INFO_RELOAD_PARAMS;
break;
case OPT_GAMMA_VECTOR_B:
DBG( _DBG_INFO, "Setting BLUE gamma.\n" );
memcpy( s->val[option].wa, value, s->opt[option].size );
checkGammaSettings(s);
if( NULL != info )
*info |= SANE_INFO_RELOAD_PARAMS;
break;
default:
return SANE_STATUS_INVAL;
}
break;
default:
return SANE_STATUS_INVAL;
}
return SANE_STATUS_GOOD;
}
/** according to the option number, return a pointer to a descriptor
*/
const SANE_Option_Descriptor*
sane_get_option_descriptor( SANE_Handle handle, SANE_Int option )
{
Plustek_Scanner *s = (Plustek_Scanner *)handle;
if((option < 0) || (option >= NUM_OPTIONS))
return NULL;
return &(s->opt[option]);
}
/** return the current parameter settings
*/
SANE_Status
sane_get_parameters( SANE_Handle handle, SANE_Parameters *params )
{
int ndpi;
int scanmode;
Plustek_Scanner *s = (Plustek_Scanner *)handle;
/* if we're calling from within, calc best guess
* do the same, if sane_get_parameters() is called
* by a frontend before sane_start() is called
*/
if((NULL == params) || (s->scanning != SANE_TRUE)) {
memset(&s->params, 0, sizeof (SANE_Parameters));
ndpi = s->val[OPT_RESOLUTION].w;
s->params.pixels_per_line = SANE_UNFIX(s->val[OPT_BR_X].w -
s->val[OPT_TL_X].w) / MM_PER_INCH * ndpi;
s->params.lines = SANE_UNFIX( s->val[OPT_BR_Y].w -
s->val[OPT_TL_Y].w) / MM_PER_INCH * ndpi;
/* pixels_per_line seems to be 8 * n. */
/* s->params.pixels_per_line = s->params.pixels_per_line & ~7; debug only */
s->params.last_frame = SANE_TRUE;
scanmode = getScanMode( s );
if( scanmode == COLOR_TRUE24 || scanmode == COLOR_TRUE48 ) {
s->params.format = SANE_FRAME_RGB;
s->params.bytes_per_line = 3 * s->params.pixels_per_line;
} else {
s->params.format = SANE_FRAME_GRAY;
if (s->params.depth == 1)
s->params.bytes_per_line = (s->params.pixels_per_line + 7) / 8;
else
s->params.bytes_per_line = s->params.pixels_per_line *
s->params.depth / 8;
}
/* if sane_get_parameters() was called before sane_start() */
/* pass new values to the caller */
if ((NULL != params) && (s->scanning != SANE_TRUE))
*params = s->params;
} else {
*params = s->params;
}
return SANE_STATUS_GOOD;
}
/** initiate the scan process
*/
static SANE_Status
local_sane_start(Plustek_Scanner *s, int scanmode )
{
Plustek_Device *dev;
int result;
int ndpi;
int left, top;
int width, height;
double dpi_x, dpi_y;
CropInfo crop;
ScanInfo sinfo;
SANE_Word tmp;
/* clear it out just in case */
memset(&crop, 0, sizeof(crop));
dev = s->hw;
/* check if we're called from the option dialog! */
if (usb_InCalibrationMode(dev))
crop.ImgDef.dwFlag = SCANFLAG_Calibration;
/* open the driver and get some information about the scanner
*/
dev->fd = usbDev_open( dev, NULL, SANE_TRUE );
if( dev->fd < 0 ) {
DBG( _DBG_ERROR, "sane_start: open failed: %d\n", errno);
if( errno == EBUSY )
return SANE_STATUS_DEVICE_BUSY;
return SANE_STATUS_IO_ERROR;
}
result = usbDev_getCaps( dev );
if( result < 0 ) {
DBG( _DBG_ERROR, "usbDev_getCaps() failed(%d)\n", result);
sanei_access_unlock( dev->sane.name );
usbDev_close( dev );
return SANE_STATUS_IO_ERROR;
}
/* All ready to go. Set image def and see what the scanner
* says for crop info.
*/
ndpi = s->val[OPT_RESOLUTION].w;
/* exchange the values as we can't deal with
* negative heights and so on...*/
tmp = s->val[OPT_TL_X].w;
if( tmp > s->val[OPT_BR_X].w ) {
DBG( _DBG_INFO, "exchanging BR-X - TL-X\n" );
s->val[OPT_TL_X].w = s->val[OPT_BR_X].w;
s->val[OPT_BR_X].w = tmp;
}
tmp = s->val[OPT_TL_Y].w;
if( tmp > s->val[OPT_BR_Y].w ) {
DBG( _DBG_INFO, "exchanging BR-Y - TL-Y\n" );
s->val[OPT_TL_Y].w = s->val[OPT_BR_Y].w;
s->val[OPT_BR_Y].w = tmp;
}
/* position and extent are always relative to 300 dpi */
dpi_x = (double)dev->usbDev.Caps.OpticDpi.x;
dpi_y = (double)dev->usbDev.Caps.OpticDpi.x * 2;
left = (int)(SANE_UNFIX (s->val[OPT_TL_X].w)*dpi_x/
(MM_PER_INCH*(dpi_x/300.0)));
top = (int)(SANE_UNFIX (s->val[OPT_TL_Y].w)*dpi_y/
(MM_PER_INCH*(dpi_y/300.0)));
width = (int)(SANE_UNFIX (s->val[OPT_BR_X].w - s->val[OPT_TL_X].w) *
dpi_x / (MM_PER_INCH *(dpi_x/300.0)));
height = (int)(SANE_UNFIX (s->val[OPT_BR_Y].w - s->val[OPT_TL_Y].w) *
dpi_y / (MM_PER_INCH *(dpi_y/300.0)));
/* adjust mode list according to the model we use and the
* source we have
*/
DBG( _DBG_INFO, "scanmode = %u\n", scanmode );
crop.ImgDef.xyDpi.x = ndpi;
crop.ImgDef.xyDpi.y = ndpi;
crop.ImgDef.crArea.x = left; /* offset from left edge to area you want to scan */
crop.ImgDef.crArea.y = top; /* offset from top edge to area you want to scan */
crop.ImgDef.crArea.cx = width; /* always relative to 300 dpi */
crop.ImgDef.crArea.cy = height;
crop.ImgDef.wDataType = scanmode;
crop.ImgDef.dwFlag |= SCANDEF_QualityScan;
switch( s->val[OPT_EXT_MODE].w ) {
case 1: crop.ImgDef.dwFlag |= SCANDEF_Transparency; break;
case 2: crop.ImgDef.dwFlag |= SCANDEF_Negative; break;
default: break;
}
result = usbDev_getCropInfo( dev, &crop );
if( result < 0 ) {
DBG( _DBG_ERROR, "usbDev_getCropInfo() failed(%d)\n", result );
usbDev_close( dev );
sanei_access_unlock( dev->sane.name );
return SANE_STATUS_IO_ERROR;
}
/* DataInf.dwAppPixelsPerLine = crop.dwPixelsPerLine; */
s->params.pixels_per_line = crop.dwPixelsPerLine;
s->params.bytes_per_line = crop.dwBytesPerLine;
s->params.lines = crop.dwLinesPerArea;
/* build a SCANINFO block and get ready to scan it */
crop.ImgDef.dwFlag |= SCANDEF_QualityScan;
/* remove that for preview scans */
if( s->val[OPT_PREVIEW].w )
crop.ImgDef.dwFlag &= (~SCANDEF_QualityScan);
/* set adjustments for brightness and contrast */
sinfo.siBrightness = s->val[OPT_BRIGHTNESS].w;
sinfo.siContrast = s->val[OPT_CONTRAST].w;
memcpy( &sinfo.ImgDef, &crop.ImgDef, sizeof(ImgDef));
DBG( _DBG_SANE_INIT, "brightness %i, contrast %i\n",
sinfo.siBrightness, sinfo.siContrast );
result = usbDev_setScanEnv( dev, &sinfo );
if( result < 0 ) {
DBG( _DBG_ERROR, "usbDev_setScanEnv() failed(%d)\n", result );
usbDev_close( dev );
sanei_access_unlock( dev->sane.name );
return SANE_STATUS_IO_ERROR;
}
/* download gamma correction tables... */
if( scanmode <= COLOR_GRAY16 ) {
usbDev_setMap( dev, s->gamma_table[0], s->gamma_length, _MAP_MASTER);
} else {
usbDev_setMap( dev, s->gamma_table[1], s->gamma_length, _MAP_RED );
usbDev_setMap( dev, s->gamma_table[2], s->gamma_length, _MAP_GREEN );
usbDev_setMap( dev, s->gamma_table[3], s->gamma_length, _MAP_BLUE );
}
tsecs = 0; /* reset timer */
result = usbDev_startScan( dev );
if( result < 0 ) {
DBG( _DBG_ERROR, "usbDev_startScan() failed(%d)\n", result );
usbDev_close( dev );
sanei_access_unlock( dev->sane.name );
return SANE_STATUS_IO_ERROR;
}
DBG( _DBG_SANE_INIT, "dwflag = 0x%lx dwBytesLine = %ld\n",
dev->scanning.dwFlag, dev->scanning.dwBytesLine );
DBG( _DBG_SANE_INIT, "Lines = %d\n", s->params.lines);
DBG( _DBG_SANE_INIT, "Bytes per Line = %d\n", s->params.bytes_per_line );
DBG( _DBG_SANE_INIT, "Bitdepth = %d\n", s->params.depth );
if (usb_InCalibrationMode(dev)) {
if (s->buf)
free(s->buf);
s->buf = NULL;
} else {
if (s->params.lines == 0 || s->params.bytes_per_line == 0) {
DBG( _DBG_ERROR, "nothing to scan!\n" );
usbDev_close( dev );
sanei_access_unlock( dev->sane.name );
return SANE_STATUS_INVAL;
}
s->buf = realloc( s->buf, (s->params.lines) * s->params.bytes_per_line );
if( NULL == s->buf ) {
DBG( _DBG_ERROR, "realloc failed\n" );
usbDev_close( dev );
sanei_access_unlock( dev->sane.name );
return SANE_STATUS_NO_MEM;
}
}
tsecs = (unsigned long)time(NULL);
DBG( _DBG_INFO, "TIME START\n" );
DBG( _DBG_SANE_INIT, "local_sane_start done\n" );
return SANE_STATUS_GOOD;
}
/** initiate the scan process
*/
SANE_Status
sane_start( SANE_Handle handle )
{
Plustek_Scanner *s = (Plustek_Scanner *)handle;
Plustek_Device *dev = s->hw;
SANE_Status status;
int fds[2];
DBG( _DBG_SANE_INIT, "sane_start\n" );
if (s->scanning)
return SANE_STATUS_DEVICE_BUSY;
/* in the end we wait until the calibration is done... */
if (s->calibrating) {
while (s->calibrating) {
sleep(1);
}
/* we have been cancelled? */
if (cancelRead)
return SANE_STATUS_CANCELLED;
}
status = sane_get_parameters (handle, NULL);
if (status != SANE_STATUS_GOOD) {
DBG( _DBG_ERROR, "sane_get_parameters failed\n" );
return status;
}
status = local_sane_start(s, getScanMode(s));
if (status != SANE_STATUS_GOOD) {
return status;
}
s->scanning = SANE_TRUE;
/*
* everything prepared, so start the child process and a pipe to communicate
* pipe --> fds[0]=read-fd, fds[1]=write-fd
*/
if( pipe(fds) < 0 ) {
DBG( _DBG_ERROR, "ERROR: could not create pipe\n" );
s->scanning = SANE_FALSE;
usbDev_close( dev );
return SANE_STATUS_IO_ERROR;
}
/* create reader routine as new process */
s->bytes_read = 0;
s->r_pipe = fds[0];
s->w_pipe = fds[1];
s->ipc_read_done = SANE_FALSE;
s->reader_pid = sanei_thread_begin( reader_process, s );
cancelRead = SANE_FALSE;
if( s->reader_pid == -1 ) {
DBG( _DBG_ERROR, "ERROR: could not start reader task\n" );
s->scanning = SANE_FALSE;
usbDev_close( dev );
return SANE_STATUS_IO_ERROR;
}
signal( SIGCHLD, sig_chldhandler );
if( sanei_thread_is_forked()) {
close( s->w_pipe );
s->w_pipe = -1;
}
DBG( _DBG_SANE_INIT, "sane_start done\n" );
return SANE_STATUS_GOOD;
}
/** function to read the data from our child process
*/
SANE_Status
sane_read( SANE_Handle handle, SANE_Byte *data,
SANE_Int max_length, SANE_Int *length )
{
Plustek_Scanner *s = (Plustek_Scanner*)handle;
ssize_t nread;
#ifdef USE_IPC
static IPCDef ipc;
unsigned char *buf;
static unsigned long c = 0;
#endif
*length = 0;
#ifdef USE_IPC
/* first try and read IPC... */
if( !s->ipc_read_done ) {
buf = (unsigned char*)&ipc;
for( c = 0; c < sizeof(ipc); ) {
nread = read( s->r_pipe, buf, sizeof(ipc));
if( nread < 0 ) {
if( EAGAIN != errno ) {
do_cancel( s, SANE_TRUE );
return SANE_STATUS_IO_ERROR;
} else {
return SANE_STATUS_GOOD;
}
} else {
c += nread;
buf += nread;
if( c == sizeof(ipc)) {
s->ipc_read_done = SANE_TRUE;
break;
}
}
}
s->hw->transferRate = ipc.transferRate;
DBG( _DBG_INFO, "IPC: Transferrate = %lu Bytes/s\n",
ipc.transferRate );
}
#endif
/* here we read all data from the driver... */
nread = read( s->r_pipe, data, max_length );
DBG( _DBG_READ, "sane_read - read %ld bytes\n", (long)nread );
if (!(s->scanning)) {
return do_cancel( s, SANE_TRUE );
}
if( nread < 0 ) {
if( EAGAIN == errno ) {
/* if we already had red the picture, so it's okay and stop */
if( s->bytes_read ==
(unsigned long)(s->params.lines * s->params.bytes_per_line)) {
sanei_thread_waitpid( s->reader_pid, 0 );
s->reader_pid = -1;
s->scanning = SANE_FALSE;
drvclose( s->hw );
return close_pipe(s);
}
/* else force the frontend to try again*/
return SANE_STATUS_GOOD;
} else {
DBG( _DBG_ERROR, "ERROR: errno=%d\n", errno );
do_cancel( s, SANE_TRUE );
return SANE_STATUS_IO_ERROR;
}
}
*length = nread;
s->bytes_read += nread;
/* nothing red means that we're finished OR we had a problem... */
if( 0 == nread ) {
drvclose( s->hw );
s->exit_code = sanei_thread_get_status( s->reader_pid );
if( SANE_STATUS_GOOD != s->exit_code ) {
close_pipe(s);
return s->exit_code;
}
s->reader_pid = -1;
s->scanning = SANE_FALSE;
return close_pipe(s);
}
return SANE_STATUS_GOOD;
}
/** cancel the scanning process
*/
void
sane_cancel( SANE_Handle handle )
{
Plustek_Scanner *s = (Plustek_Scanner *)handle;
DBG( _DBG_SANE_INIT, "sane_cancel\n" );
if (s->scanning || s->calibrating)
do_cancel( s, SANE_FALSE );
}
/** set the pipe to blocking/non blocking mode
*/
SANE_Status
sane_set_io_mode( SANE_Handle handle, SANE_Bool non_blocking )
{
Plustek_Scanner *s = (Plustek_Scanner *)handle;
DBG( _DBG_SANE_INIT, "sane_set_io_mode: non_blocking=%d\n",non_blocking );
if ( !s->scanning ) {
DBG( _DBG_ERROR, "ERROR: not scanning !\n" );
return SANE_STATUS_INVAL;
}
if( -1 == s->r_pipe ) {
DBG( _DBG_ERROR, "ERROR: not supported !\n" );
return SANE_STATUS_UNSUPPORTED;
}
if( fcntl (s->r_pipe, F_SETFL, non_blocking ? O_NONBLOCK : 0) < 0) {
DBG( _DBG_ERROR, "ERROR: could not set to non-blocking mode !\n" );
return SANE_STATUS_IO_ERROR;
}
DBG( _DBG_SANE_INIT, "sane_set_io_mode done\n" );
return SANE_STATUS_GOOD;
}
/** return the descriptor if available
*/
SANE_Status
sane_get_select_fd( SANE_Handle handle, SANE_Int * fd )
{
Plustek_Scanner *s = (Plustek_Scanner *)handle;
DBG( _DBG_SANE_INIT, "sane_get_select_fd\n" );
if( !s->scanning ) {
DBG( _DBG_ERROR, "ERROR: not scanning !\n" );
return SANE_STATUS_INVAL;
}
*fd = s->r_pipe;
DBG( _DBG_SANE_INIT, "sane_get_select_fd done\n" );
return SANE_STATUS_GOOD;
}
/* END PLUSTEK.C ............................................................*/
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