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sane-project-backends/backend/plustek-usb.c

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32 KiB
C
Czysty Wina Historia

/*.............................................................................
* Project : SANE library for Plustek USB flatbed scanners.
*.............................................................................
* File: plustek-usb.c - the interface functions to the USB driver stuff
*.............................................................................
*
* based on sources acquired from Plustek Inc.
* Copyright (C) 2001-2002 Gerhard Jaeger <gerhard@gjaeger.de>
*.............................................................................
* History:
* 0.40 - starting version of the USB support
* 0.41 - removed CHECK
* added Canon to the manufacturer list
* 0.42 - added warmup stuff
* added setmap function
* changed detection stuff, so we first check whether
* the vendor and product Ids match with the ones in our list
* 0.43 - cleanup
*
*.............................................................................
*
* 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.
*/
/*
* to allow different vendors...
*/
static TabDef usbVendors[] = {
{ 0x07B3, "Plustek" },
{ 0x0400, "Mustek" }, /* this in fact is not correct */
/* but used for the BearPaws */
{ 0x0458, "KYE/Genius" },
{ 0x03F0, "Hewlett-Packard" },
{ 0x04B8, "Epson" },
{ 0x04A9, "Canon" },
{ 0xFFFF, NULL }
};
/********************** the USB scanner interface ****************************/
/*.............................................................................
* assign the values to the structures used by the currently found scanner
*/
static void usb_initDev( pPlustek_Device dev, int idx, int handle, int vendor )
{
int i;
ScanParam sParam;
DBG( _DBG_INFO, "usb_initDev(%d,0x%04x)\n", idx, vendor );
memcpy( &dev->usbDev.Caps, Settings[idx].pDevCaps, sizeof(DCapsDef));
memcpy( &dev->usbDev.HwSetting, Settings[idx].pHwDef, sizeof(HWDef));
if( dev->adj.warmup >= 0 )
dev->usbDev.dwWarmup = dev->adj.warmup;
if( dev->adj.lampOff >= 0 )
dev->usbDev.dwLampOnPeriod = dev->adj.lampOff;
if( dev->adj.lampOffOnEnd >= 0 )
dev->usbDev.bLampOffOnEnd = dev->adj.lampOffOnEnd;
/*
* adjust data origin
*/
dev->usbDev.Caps.Positive.DataOrigin.x -= dev->adj.tpa.x;
dev->usbDev.Caps.Positive.DataOrigin.y -= dev->adj.tpa.y;
dev->usbDev.Caps.Negative.DataOrigin.x -= dev->adj.neg.x;
dev->usbDev.Caps.Negative.DataOrigin.y -= dev->adj.neg.y;
dev->usbDev.Caps.Normal.DataOrigin.x -= dev->adj.pos.x;
dev->usbDev.Caps.Normal.DataOrigin.y -= dev->adj.pos.y;
/*
* the following you normally get from the registry...
* 30 and 8 are for a UT12
*/
bMaxITA = 0; /* Maximum integration time adjust */
dev->usbDev.bStepsToReverse = 30;
dev->usbDev.dwBufferSize = 8 * 1024 * 1024; /*min val is 4MB!!!*/
dev->usbDev.ModelStr = Settings[idx].pModelString;
dev->fd = handle;
/*
* well now we patch the vendor string...
* if not found, the default vendor will be Plustek
*/
for( i = 0; usbVendors[i].desc != NULL; i++ ) {
if( usbVendors[i].id == vendor ) {
dev->sane.vendor = usbVendors[i].desc;
DBG( _DBG_INFO, "Vendor adjusted to: >%s<\n", dev->sane.vendor );
break;
}
}
if( vendor == 0x04B8 ) {
if( dev->adj.enableTpa ) {
DBG( _DBG_INFO, "Enabled TPA for EPSON\n" );
dev->usbDev.Caps.wFlags |= DEVCAPSFLAG_TPA;
}
}
dev->usbDev.currentLamp = usb_GetLampStatus( dev );
usb_ResetRegisters( dev );
usbio_ResetLM983x ( dev );
sParam.bBitDepth = 8;
sParam.bCalibration = PARAM_Scan;
sParam.bChannels = 3;
sParam.bDataType = SCANDATATYPE_Color;
sParam.bSource = SOURCE_Reflection;
sParam.Origin.x = 0;
sParam.Origin.y = 0;
sParam.siThreshold = 0;
sParam.UserDpi.x = 150;
sParam.UserDpi.y = 150;
sParam.dMCLK = 4;
sParam.Size.dwPixels = 0;
/* initialize the ASIC registers */
usb_SetScanParameters( dev, &sParam );
/* check and move sensor to its home position */
usb_ModuleToHome( dev, SANE_FALSE );
}
/*.............................................................................
* will be used for retrieving a Plustek device
*/
static int usb_CheckForPlustekDevice( int handle, pPlustek_Device dev )
{
char tmp[50];
char pcbStr[10];
u_char reg59[3], reg59s[3], pcbID;
int i, result;
/*
* Plustek uses the misc IO 12 to get the PCB ID
* (PCB = printed circuit board), so it's possible to have one
* product ID and up to 7 different devices...
*/
DBG( _DBG_INFO, "Trying to get the pcbID of a Plustek device...\n" );
/*
* get the PCB-ID
*/
result = sanei_lm983x_read( handle, 0x59, reg59s, 3, SANE_TRUE );
if( SANE_STATUS_GOOD != result ) {
sanei_usb_close( handle );
return -1;
}
reg59[0] = 0x22; /* PIO1: Input, PIO2: Input */
reg59[1] = 0x02; /* PIO3: Input, PIO4: Output as low */
reg59[2] = 0x03;
result = sanei_lm983x_write( handle, 0x59, reg59, 3, SANE_TRUE );
if( SANE_STATUS_GOOD != result ) {
sanei_usb_close( handle );
return -1;
}
result = sanei_lm983x_read ( handle, 0x02, &pcbID, 1, SANE_TRUE );
if( SANE_STATUS_GOOD != result ) {
sanei_usb_close( handle );
return -1;
}
pcbID = (u_char)((pcbID >> 2) & 0x07);
result = sanei_lm983x_read( handle, 0x59, reg59s, 3, SANE_TRUE );
if( SANE_STATUS_GOOD != result ) {
sanei_usb_close( handle );
return -1;
}
DBG( _DBG_INFO, "pcbID=0x%02x\n", pcbID );
/* now roam through the setting list... */
strncpy( tmp, dev->usbId, 13 );
tmp[13] = '\0';
sprintf( pcbStr, "-%u", pcbID );
strcat ( tmp, pcbStr );
DBG( _DBG_INFO, "Checking for device >%s<\n", tmp );
for( i = 0; NULL != Settings[i].pIDString; i++ ) {
if( 0 == strcmp( Settings[i].pIDString, tmp )) {
DBG(_DBG_INFO, "Device description for >%s< found.\n", tmp );
usb_initDev( dev, i, handle, 0x07B3 );
return handle;
}
}
return -1;
}
/*.............................................................................
* will be called upon sane_exit
*/
static void usbDev_shutdown( Plustek_Device *dev )
{
SANE_Int handle;
DBG( _DBG_INFO, "Shutdown called (dev->fd=%d, %s)\n",
dev->fd, dev->sane.name );
if( NULL == dev->usbDev.ModelStr ) {
DBG( _DBG_INFO, "Function ignored!\n" );
return;
}
if( SANE_STATUS_GOOD == sanei_usb_open( dev->sane.name, &handle )) {
dev->fd = handle;
DBG( _DBG_INFO, "Waiting for scanner-ready...\n" );
usb_IsScannerReady( dev );
if( 0 != dev->usbDev.bLampOffOnEnd ) {
DBG( _DBG_INFO, "Switching lamp off...\n" );
usb_LampOn( dev, SANE_FALSE, SANE_FALSE );
}
dev->fd = -1;
sanei_usb_close( handle );
}
usb_StopLampTimer( dev );
}
/**
* This function checks wether a device, described by a given
* string(vendor and product ID), is support by this backend or not
*
* @param usbIdStr - sting consisting out of product and vendor ID
* format: "0xVVVVx0xPPPP" VVVV = Vendor ID, PPP = Product ID
* @returns; SANE_TRUE if supported, SANE_FALSE if not
*/
static SANE_Bool usb_IsDeviceInList( char *usbIdStr )
{
int i;
for( i = 0; NULL != Settings[i].pIDString; i++ ) {
if( 0 == strncmp( Settings[i].pIDString, usbIdStr, 13 ))
return SANE_TRUE;
}
return SANE_FALSE;
}
/*.............................................................................
*
*/
static int usbDev_open( const char *dev_name, void *misc )
{
char devStr[50];
int result;
int i;
SANE_Int handle;
SANE_Byte version;
SANE_Word vendor, product;
SANE_Bool was_empty;
pPlustek_Device dev = (pPlustek_Device)misc;
DBG( _DBG_INFO, "usbDev_open(%s,%s)\n", dev_name, dev->usbId );
/* preset our internal usb device structure */
memset( &dev->usbDev, 0, sizeof(DeviceDef));
if( SANE_STATUS_GOOD != sanei_usb_open( dev_name, &handle )) {
return -1;
}
was_empty = SANE_FALSE;
result = sanei_usb_get_vendor_product( handle, &vendor, &product );
if( SANE_STATUS_GOOD == result ) {
sprintf( devStr, "0x%04X-0x%04X", vendor, product );
DBG(_DBG_INFO,"Vendor ID=0x%04X, Product ID=0x%04X\n",vendor,product);
if( dev->usbId[0] != '\0' ) {
if( 0 != strcmp( dev->usbId, devStr )) {
DBG( _DBG_ERROR, "Specified Vendor and Product ID "
"doesn't match with the ones\n"
"in the config file\n" );
sanei_usb_close( handle );
return -1;
}
} else {
sprintf( dev->usbId, "0x%04X-0x%04X", vendor, product );
was_empty = SANE_TRUE;
}
} else {
DBG( _DBG_INFO, "Can't get vendor ID from driver...\n" );
/* if the ioctl stuff is not supported by the kernel and we have
* nothing specified, we have to give up...
*/
if( dev->usbId[0] == '\0' ) {
DBG( _DBG_ERROR, "Cannot autodetect Vendor an Product ID, "
"please specify in config file.\n" );
sanei_usb_close( handle );
return -1;
}
vendor = strtol( dev->usbId, 0, 0 );
DBG( _DBG_INFO, "... using the specified: 0x%04x\n", vendor );
}
/*
* before accessing the scanner, check if supported!
*/
if( !usb_IsDeviceInList( dev->usbId )) {
DBG( _DBG_ERROR, "Device >%s<, is not supported!\n", dev->usbId );
sanei_usb_close( handle );
return -1;
}
if( SANE_STATUS_GOOD != usbio_DetectLM983x( handle, &version )) {
sanei_usb_close( handle );
return -1;
}
if ((version < 3) || (version > 4)) {
DBG( _DBG_ERROR, "This is not a LM9831 or LM9832 chip based scanner.\n" );
sanei_usb_close( handle );
return -1;
}
#if 1
dev->fd = handle;
usbio_ResetLM983x ( dev );
usb_IsScannerReady( dev );
dev->fd = -1;
#else
sanei_lm983x_reset( handle );
#endif
/*
* Plustek uses the misc IO 1/2 to get the PCB ID
* (PCB = printed circuit board), so it's possible to have one
* product ID and up to 7 different devices...
*/
if( 0x07B3 == vendor ) {
handle = usb_CheckForPlustekDevice( handle, dev );
if( was_empty )
dev->usbId[0] = '\0';
if( handle >= 0 )
return handle;
} else {
/* now roam through the setting list... */
strncpy( devStr, dev->usbId, 13 );
devStr[13] = '\0';
if( was_empty )
dev->usbId[0] = '\0';
/*
* if we don't use the PCD ID extension...
*/
for( i = 0; NULL != Settings[i].pIDString; i++ ) {
if( 0 == strncmp( Settings[i].pIDString, devStr, 13 )) {
DBG( _DBG_INFO, "Device description for >%s< found.\n", devStr );
usb_initDev( dev, i, handle, vendor );
return handle;
}
}
}
sanei_usb_close( handle );
DBG( _DBG_ERROR, "No matching device found >%s<\n", devStr );
return -1;
}
/*.............................................................................
*
*/
static int usbDev_close( Plustek_Device *dev )
{
DBG( _DBG_INFO, "usbDev_close()\n" );
sanei_usb_close( dev->fd );
dev->fd = -1;
return 0;
}
/*.............................................................................
* convert the stuff
*/
static int usbDev_getCaps( Plustek_Device *dev )
{
pDCapsDef scaps = &dev->usbDev.Caps;
DBG( _DBG_INFO, "usbDev_getCaps()\n" );
dev->caps.rDataType.wMin = scaps->Normal.MinDpi.x;
dev->caps.rDataType.wDef = scaps->Normal.MinDpi.x;
dev->caps.rDataType.wMax = scaps->OpticDpi.y;
dev->caps.rDataType.wPhyMax = scaps->OpticDpi.x;
dev->caps.dwBits = _BITS_12;
dev->caps.dwFlag = (SFLAG_SCANNERDEV + SFLAG_FLATBED + SFLAG_CUSTOM_GAMMA);
if(((DEVCAPSFLAG_Positive == scaps->wFlags) &&
(DEVCAPSFLAG_Negative == scaps->wFlags)) ||
(DEVCAPSFLAG_TPA == scaps->wFlags)) {
dev->caps.dwFlag |= SFLAG_TPA;
}
dev->caps.wIOBase = 0;
dev->caps.wLens = 1;
dev->caps.wMaxExtentX = scaps->Normal.Size.x;
dev->caps.wMaxExtentY = scaps->Normal.Size.y;
dev->caps.AsicID = _ASIC_IS_USB;
dev->caps.Model = MODEL_OP_USB;
dev->caps.Version = 0;
return 0;
}
/** usbDev_getLensInfo
* set the info for the scan-area.
*/
static int usbDev_getLensInfo( Plustek_Device *dev, pLensInfo lens )
{
DBG( _DBG_INFO, "usbDev_getLensInfo()\n" );
lens->wBeginX = 0;
lens->wBeginY = 0;
lens->rExtentX.wMin = 150;
lens->rExtentX.wDef =
lens->rExtentX.wMax =
lens->rExtentX.wPhyMax = dev->usbDev.Caps.Normal.Size.x;
lens->rExtentY.wMin = 150;
lens->rExtentY.wDef =
lens->rExtentY.wMax =
lens->rExtentY.wPhyMax = dev->usbDev.Caps.Normal.Size.y;
/* set the DPI stuff */
lens->rDpiX.wMin = 16;
lens->rDpiX.wDef = 50;
lens->rDpiX.wMax = (dev->usbDev.Caps.OpticDpi.x *16);
lens->rDpiX.wPhyMax = dev->usbDev.Caps.OpticDpi.x;
lens->rDpiY.wMin = 16;
lens->rDpiY.wDef = 50;
lens->rDpiY.wMax = (dev->usbDev.Caps.OpticDpi.x *16);
lens->rDpiY.wPhyMax = (dev->usbDev.Caps.OpticDpi.x * 2);
lens->rDpiY.wMin = dev->usbDev.Caps.Normal.MinDpi.y;
DBG( _DBG_INFO, "wMAX=%u, WPHYMAX=%u\n", lens->rDpiY.wMax, lens->rDpiY.wPhyMax );
return 0;
}
/** usbDev_getCropInfo
* function to set the image relevant stuff
*/
static int usbDev_getCropInfo( Plustek_Device *dev, pCropInfo ci )
{
WinInfo size;
DBG( _DBG_INFO, "usbDev_getCropInfo()\n" );
_VAR_NOT_USED(dev);
usb_GetImageInfo( &ci->ImgDef, &size );
ci->dwPixelsPerLine = size.dwPixels;
ci->dwLinesPerArea = size.dwLines;
ci->dwBytesPerLine = size.dwBytes;
if( ci->ImgDef.dwFlag & SCANDEF_BoundaryDWORD )
ci->dwBytesPerLine = (ci->dwBytesPerLine + 3UL) & 0xfffffffcUL;
DBG( _DBG_INFO, "PPL = %lu\n", ci->dwPixelsPerLine );
DBG( _DBG_INFO, "LPA = %lu\n", ci->dwLinesPerArea );
DBG( _DBG_INFO, "BPL = %lu\n", ci->dwBytesPerLine );
return 0;
}
/*.............................................................................
*
*/
static int usbDev_setMap( Plustek_Device *dev, SANE_Word *map,
SANE_Word length, SANE_Word channel )
{
SANE_Word i, idx;
DBG(_DBG_INFO,"Setting map[%u] at 0x%08lx\n",channel,(unsigned long)map);
_VAR_NOT_USED( dev );
if( channel == _MAP_MASTER ) {
for( i = 0; i < length; i++ ) {
#ifndef _GENE_
a_bMap[i] = (SANE_Byte)map[i];
a_bMap[length +i] = (SANE_Byte)map[i];
a_bMap[(length*2)+i] = (SANE_Byte)map[i];
#endif
}
} else {
idx = 0;
if( channel == _MAP_GREEN )
idx = 1;
if( channel == _MAP_BLUE )
idx = 2;
#ifndef _GENE_
for( i = 0; i < length; i++ ) {
a_bMap[(length * idx)+i] = (SANE_Byte)map[i];
}
#endif
}
return 0;
}
/*.............................................................................
*
*/
static int usbDev_setScanEnv( Plustek_Device *dev, pScanInfo si )
{
DBG( _DBG_INFO, "usbDev_setScanEnv()\n" );
/* clear all the stuff */
memset( &dev->scanning, 0, sizeof(ScanDef));
if( si->ImgDef.dwFlag & SCANDEF_Adf && si->ImgDef.dwFlag & SCANDEF_ContinuousScan)
dev->scanning.sParam.dMCLK = dMCLK_ADF;
/* Save necessary informations */
dev->scanning.fGrayFromColor = 0;
if( si->ImgDef.wDataType == COLOR_256GRAY ) {
#if 0
if( dev->scanning.fGrayFromColor = Registry.GetGrayFromColor())
si->ImgDef.wDataType = COLOR_TRUE24;
else
#endif
if( !(si->ImgDef.dwFlag & SCANDEF_Adf ) &&
(dev->usbDev.Caps.OpticDpi.x == 1200 && si->ImgDef.xyDpi.x <= 300)) {
dev->scanning.fGrayFromColor = 2;
si->ImgDef.wDataType = COLOR_TRUE24;
}
}
usb_SaveImageInfo( &si->ImgDef, &dev->scanning.sParam );
usb_GetImageInfo ( &si->ImgDef, &dev->scanning.sParam.Size );
/* Flags */
dev->scanning.dwFlag = si->ImgDef.dwFlag & (SCANFLAG_bgr | SCANFLAG_BottomUp | SCANFLAG_Invert |
SCANFLAG_DWORDBoundary | SCANFLAG_RightAlign |
SCANFLAG_StillModule | SCANDEF_Adf | SCANDEF_ContinuousScan);
if( !(SCANDEF_QualityScan & si->ImgDef.dwFlag)) {
DBG( _DBG_INFO, "Preview Mode set!\n" );
} else {
DBG( _DBG_INFO, "Preview Mode NOT set!\n" );
dev->scanning.dwFlag |= SCANDEF_QualityScan;
}
dev->scanning.sParam.siThreshold = si->siBrightness;
dev->scanning.sParam.brightness = si->siBrightness;
dev->scanning.sParam.contrast = si->siContrast;
if( dev->scanning.sParam.bBitDepth <= 8 )
dev->scanning.dwFlag &= ~SCANFLAG_RightAlign;
if( dev->scanning.dwFlag & SCANFLAG_DWORDBoundary ) {
if( dev->scanning.fGrayFromColor )
dev->scanning.dwBytesLine = (dev->scanning.sParam.Size.dwBytes / 3 + 3) & 0xfffffffcUL;
else
dev->scanning.dwBytesLine = (dev->scanning.sParam.Size.dwBytes + 3UL) & 0xfffffffcUL;
} else {
if( dev->scanning.fGrayFromColor )
dev->scanning.dwBytesLine = dev->scanning.sParam.Size.dwBytes / 3;
else
dev->scanning.dwBytesLine = dev->scanning.sParam.Size.dwBytes;
}
if( dev->scanning.dwFlag & SCANFLAG_BottomUp)
dev->scanning.lBufAdjust = -(long)dev->scanning.dwBytesLine;
else
dev->scanning.lBufAdjust = dev->scanning.dwBytesLine;
/* LM9831 has a BUG in 16-bit mode,
* so we generate pseudo 16-bit data from 8-bit
*/
if( dev->scanning.sParam.bBitDepth > 8 ) {
if( _LM9831 == dev->usbDev.HwSetting.chip ) {
dev->scanning.sParam.bBitDepth = 8;
dev->scanning.dwFlag |= SCANFLAG_Pseudo48;
dev->scanning.sParam.Size.dwBytes >>= 1;
}
}
/* Source selection */
if( dev->scanning.sParam.bSource == SOURCE_Reflection ) {
dev->usbDev.pSource = &dev->usbDev.Caps.Normal;
dev->scanning.sParam.Origin.x += dev->usbDev.pSource->DataOrigin.x + (u_long)dev->usbDev.Normal.lLeft;
dev->scanning.sParam.Origin.y += dev->usbDev.pSource->DataOrigin.y + (u_long)dev->usbDev.Normal.lUp;
} else if( dev->scanning.sParam.bSource == SOURCE_Transparency ) {
dev->usbDev.pSource = &dev->usbDev.Caps.Positive;
dev->scanning.sParam.Origin.x += dev->usbDev.pSource->DataOrigin.x + (u_long)dev->usbDev.Positive.lLeft;
dev->scanning.sParam.Origin.y += dev->usbDev.pSource->DataOrigin.y + (u_long)dev->usbDev.Positive.lUp;
} else if( dev->scanning.sParam.bSource == SOURCE_Negative ) {
dev->usbDev.pSource = &dev->usbDev.Caps.Negative;
dev->scanning.sParam.Origin.x += dev->usbDev.pSource->DataOrigin.x + (u_long)dev->usbDev.Negative.lLeft;
dev->scanning.sParam.Origin.y += dev->usbDev.pSource->DataOrigin.y + (u_long)dev->usbDev.Negative.lUp;
} else {
dev->usbDev.pSource = &dev->usbDev.Caps.Adf;
dev->scanning.sParam.Origin.x += dev->usbDev.pSource->DataOrigin.x + (u_long)dev->usbDev.Normal.lLeft;
dev->scanning.sParam.Origin.y += dev->usbDev.pSource->DataOrigin.y + (u_long)dev->usbDev.Normal.lUp;
}
if( dev->scanning.sParam.bSource == SOURCE_ADF ) {
if( dev->scanning.dwFlag & SCANDEF_ContinuousScan )
fLastScanIsAdf = SANE_TRUE;
else
fLastScanIsAdf = SANE_FALSE;
}
return 0;
}
/*.............................................................................
*
*/
static int usbDev_stopScan( Plustek_Device *dev, int *mode )
{
DBG( _DBG_INFO, "usbDev_stopScan(mode=%u)\n", *mode );
/* in cancel-mode we first stop the motor */
usb_ScanEnd( dev );
dev->scanning.dwFlag = 0;
if( NULL != dev->scanning.pScanBuffer ) {
free( dev->scanning.pScanBuffer );
dev->scanning.pScanBuffer = NULL;
usb_StartLampTimer( dev );
}
return 0;
}
/*.............................................................................
*
*/
static int usbDev_startScan( Plustek_Device *dev, pStartScan start )
{
pScanDef scanning = &dev->scanning;
static int iSkipLinesForADF = 0;
DBG( _DBG_INFO, "usbDev_startScan()\n" );
/* HEINER: PReview currently not working correctly */
#if 0
if( scanning->dwFlag & SCANDEF_QualityScan )
a_bRegs[0x0a] = 0;
else
a_bRegs[0x0a] = 1;
#endif
a_bRegs[0x0a] = 0;
/* Allocate shading buffer */
if((dev->scanning.dwFlag & SCANDEF_Adf) &&
(dev->scanning.dwFlag & SCANDEF_ContinuousScan)) {
dev->scanning.fCalibrated = SANE_TRUE;
} else {
dev->scanning.fCalibrated = SANE_FALSE;
iSkipLinesForADF = 0;
}
scanning->sParam.PhyDpi.x = usb_SetAsicDpiX(dev,scanning->sParam.UserDpi.x);
scanning->sParam.PhyDpi.y = usb_SetAsicDpiY(dev,scanning->sParam.UserDpi.y);
scanning->pScanBuffer = (u_char*)malloc( dev->usbDev.dwBufferSize );
if( NULL != scanning->pScanBuffer ) {
scanning->dwFlag |= SCANFLAG_StartScan;
usb_LampOn( dev, SANE_TRUE, SANE_TRUE );
start->dwBytesPerLine = scanning->dwBytesLine;
start->dwFlag = scanning->dwFlag;
usb_StopLampTimer( dev );
return 0;
}
return _E_ALLOC;
}
/*.............................................................................
* do the reading stuff here...
* first we perform the calibration step, and the we read the image
* line for line
*/
static int usbDev_readImage( struct Plustek_Device *dev,
SANE_Byte *buf, unsigned long data_length )
{
int result, lines;
u_long dw;
pScanDef scanning = &dev->scanning;
pDCapsDef scaps = &dev->usbDev.Caps;
DBG( _DBG_INFO, "usbDev_readImage()\n" );
/* check the current position of the sensor and move it back
* to it's home position if necessary...
*/
usb_ModuleStatus( dev );
result = usb_DoCalibration( dev );
if( SANE_TRUE != result ) {
DBG( _DBG_INFO, "calibration failed!!!\n" );
return result;
}
DBG( _DBG_INFO, "calibration done.\n" );
if( !( scanning->dwFlag & SCANFLAG_Scanning )) {
usleep( 10 * 1000 );
if( usb_SetScanParameters( dev, &scanning->sParam )) {
scanning->pbScanBufBegin = scanning->pScanBuffer;
if((dev->caps.dwFlag & SFLAG_ADF) && (scaps->OpticDpi.x == 600))
scanning->dwLinesScanBuf = 8;
else
scanning->dwLinesScanBuf = 32;
scanning->dwBytesScanBuf = scanning->dwLinesScanBuf *
scanning->sParam.Size.dwPhyBytes;
scanning->dwNumberOfScanBufs = dev->usbDev.dwBufferSize /
scanning->dwBytesScanBuf;
scanning->dwLinesPerScanBufs = scanning->dwNumberOfScanBufs *
scanning->dwLinesScanBuf;
scanning->pbScanBufEnd = scanning->pbScanBufBegin +
scanning->dwLinesPerScanBufs *
scanning->sParam.Size.dwPhyBytes;
if( scanning->sParam.bChannels == 3 ) {
scanning->dwLinesDiscard = (u_long)scaps->bSensorDistance *
scanning->sParam.PhyDpi.y / scaps->OpticDpi.y;
switch( scaps->bSensorOrder ) {
case SENSORORDER_rgb:
scanning->Red.pb = scanning->pbScanBufBegin;
scanning->Green.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes;
scanning->Blue.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes * 2UL;
break;
case SENSORORDER_rbg:
scanning->Red.pb = scanning->pbScanBufBegin;
scanning->Blue.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes;
scanning->Green.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes * 2UL;
break;
case SENSORORDER_gbr:
scanning->Green.pb = scanning->pbScanBufBegin;
scanning->Blue.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes;
scanning->Red.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes * 2UL;
break;
case SENSORORDER_grb:
scanning->Green.pb = scanning->pbScanBufBegin;
scanning->Red.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes;
scanning->Blue.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes * 2UL;
break;
case SENSORORDER_brg:
scanning->Blue.pb = scanning->pbScanBufBegin;
scanning->Red.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes;
scanning->Green.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes * 2UL;
break;
case SENSORORDER_bgr:
scanning->Blue.pb = scanning->pbScanBufBegin;
scanning->Green.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes;
scanning->Red.pb = scanning->pbScanBufBegin +
scanning->dwLinesDiscard *
scanning->sParam.Size.dwPhyBytes * 2UL;
}
/* double it for last channel */
scanning->dwLinesDiscard <<= 1;
scanning->dwGreenShift = (7UL+scanning->sParam.bBitDepth) >> 3;
scanning->Green.pb += scanning->dwGreenShift;
scanning->Blue.pb += (scanning->dwGreenShift * 2);
if( scanning->dwFlag & SCANFLAG_bgr) {
u_char *pb = scanning->Blue.pb;
scanning->Blue.pb = scanning->Red.pb;
scanning->Red.pb = pb;
scanning->dwBlueShift = 0;
scanning->dwRedShift = scanning->dwGreenShift << 1;
} else {
scanning->dwRedShift = 0;
scanning->dwBlueShift = scanning->dwGreenShift << 1;
}
} else {
scanning->dwLinesDiscard = 0;
scanning->Green.pb = scanning->pbScanBufBegin;
}
}
/* set a funtion to process the RAW data... */
usb_GetImageProc( dev );
scanning->bLinesToSkip = (u_char)(scanning->sParam.PhyDpi.y / 50);
if( scanning->sParam.bSource == SOURCE_ADF )
scanning->dwFlag |= SCANFLAG_StillModule;
if( !usb_ScanBegin( dev,
(scanning->dwFlag&SCANFLAG_StillModule) ? SANE_FALSE:SANE_TRUE)) {
return _E_INTERNAL;
}
scanning->dwFlag |= SCANFLAG_Scanning;
if( scanning->sParam.UserDpi.y != scanning->sParam.PhyDpi.y ) {
if( scanning->sParam.UserDpi.y < scanning->sParam.PhyDpi.y ) {
scanning->wSumY = scanning->sParam.PhyDpi.y -
scanning->sParam.UserDpi.y;
scanning->dwFlag |= SCANFLAG_SampleY;
DBG( _DBG_INFO, "SampleY Flag set (%u != %u, wSumY=%u)\n",
scanning->sParam.UserDpi.y,
scanning->sParam.PhyDpi.y, scanning->wSumY );
}
}
}
/* here the NT driver uses an extra reading thread...
* as the SANE stuff already forked the driver to read data, I think
* we should only read data by using a function...
*/
/* HEINER: CHECK THIS!!! */
scanning->dwLinesUser = scanning->sParam.Size.dwLines; /*lpCB->dwIn / scanning->dwBytesLine*/;
if( !scanning->dwLinesUser )
return _E_BUFFER_TOO_SMALL;
if( !scanning->sParam.Size.dwLines )
return _E_NODATA;
if( scanning->sParam.Size.dwLines < scanning->dwLinesUser )
scanning->dwLinesUser = scanning->sParam.Size.dwLines;
scanning->sParam.Size.dwLines -= scanning->dwLinesUser;
if( scanning->dwFlag & SCANFLAG_BottomUp )
scanning->UserBuf.pb = buf + (scanning->dwLinesUser - 1) *
scanning->dwBytesLine;
else
scanning->UserBuf.pb = buf;
DBG(_DBG_INFO,"Reading the data now!\n" );
DBG(_DBG_INFO,"PhyDpi.x = %u\n", scanning->sParam.PhyDpi.x );
DBG(_DBG_INFO,"PhyDpi.y = %u\n", scanning->sParam.PhyDpi.y );
DBG(_DBG_INFO,"UserDpi.x = %u\n", scanning->sParam.UserDpi.x );
DBG(_DBG_INFO,"UserDpi.y = %u\n", scanning->sParam.UserDpi.y );
DBG(_DBG_INFO,"NumberOfScanBufs = %lu\n",scanning->dwNumberOfScanBufs);
DBG(_DBG_INFO,"LinesPerScanBufs = %lu\n",scanning->dwLinesPerScanBufs);
DBG(_DBG_INFO,"dwPhyBytes = %lu\n",scanning->sParam.Size.dwPhyBytes);
DBG(_DBG_INFO,"dwTotalBytes = %lu\n",scanning->sParam.Size.dwTotalBytes);
DBG(_DBG_INFO,"dwPixels = %lu\n",scanning->sParam.Size.dwPixels);
DBG(_DBG_INFO,"dwValidPixels = %lu\n",scanning->sParam.Size.dwValidPixels);
DBG(_DBG_INFO,"dwBytesScanBuf = %lu\n",scanning->dwBytesScanBuf );
DBG(_DBG_INFO,"dwLinesDiscard = %lu\n",scanning->dwLinesDiscard );
DBG(_DBG_INFO,"dwLinesToSkip = %u\n", scanning->bLinesToSkip );
DBG(_DBG_INFO,"dwLinesUser = %lu\n",scanning->dwLinesUser );
DBG(_DBG_INFO,"dwBytesLine = %lu\n",scanning->dwBytesLine );
scanning->pbGetDataBuf = scanning->pbScanBufBegin;
lines = usb_ReadData( dev );
if( 0 == lines )
return _E_DATAREAD;
/*
* all settings done, so go ahead and read the data
*/
for( dw = 0; scanning->dwLinesUser; ) {
if( usb_IsEscPressed()) {
DBG( _DBG_INFO, "ReadImage() - Cancel detected...\n" );
return 0;
}
if( !(scanning->dwFlag & SCANFLAG_SampleY)) {
scanning->pfnProcess( dev );
/* Adjust user buffer pointer */
scanning->UserBuf.pb += scanning->lBufAdjust;
scanning->dwLinesUser--;
dw++;
} else {
scanning->wSumY += scanning->sParam.UserDpi.y;
if( scanning->wSumY >= scanning->sParam.PhyDpi.y ) {
scanning->wSumY -= scanning->sParam.PhyDpi.y;
scanning->pfnProcess( dev );
/* Adjust user buffer pointer */
scanning->UserBuf.pb += scanning->lBufAdjust;
scanning->dwLinesUser--;
dw++;
}
}
/* Adjust get buffer pointers */
if( scanning->sParam.bDataType == SCANDATATYPE_Color ) {
scanning->Red.pb += scanning->sParam.Size.dwPhyBytes;
if( scanning->Red.pb >= scanning->pbScanBufEnd )
scanning->Red.pb = scanning->pbScanBufBegin +
scanning->dwRedShift;
scanning->Green.pb += scanning->sParam.Size.dwPhyBytes;
if( scanning->Green.pb >= scanning->pbScanBufEnd )
scanning->Green.pb = scanning->pbScanBufBegin +
scanning->dwGreenShift;
scanning->Blue.pb += scanning->sParam.Size.dwPhyBytes;
if( scanning->Blue.pb >= scanning->pbScanBufEnd )
scanning->Blue.pb = scanning->pbScanBufBegin +
scanning->dwBlueShift;
} else {
scanning->Green.pb += scanning->sParam.Size.dwPhyBytes;
if( scanning->Green.pb >= scanning->pbScanBufEnd )
scanning->Green.pb = scanning->pbScanBufBegin +
scanning->dwGreenShift;
}
/*
* line processed, check if we have to get more...
*/
lines--;
if( 0 == lines ) {
lines = usb_ReadData( dev );
if(( 0 == lines ) && !usb_IsEscPressed())
break;
}
}
DBG( _DBG_INFO, "We've got %lu bytes (%lu lines, needed: %lu bytes)\n",
(dw * scanning->dwBytesLine), dw, data_length );
usb_ScanEnd( dev );
return data_length; /* (dw * scanning->dwBytesLine);*/
}
/* END PLUSTEK-USB.C ........................................................*/
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