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authorJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
commit6e9c41a892ed0e0da326e0278b3221ce3f5713b8 (patch)
tree2e301d871bbeeb44aa57ff9cc070fcf3be484487 /backend/plustek-usbshading.c
Initial import of sane-backends version 1.0.24-1.2
Diffstat (limited to 'backend/plustek-usbshading.c')
-rw-r--r--backend/plustek-usbshading.c3215
1 files changed, 3215 insertions, 0 deletions
diff --git a/backend/plustek-usbshading.c b/backend/plustek-usbshading.c
new file mode 100644
index 0000000..6d08dc7
--- /dev/null
+++ b/backend/plustek-usbshading.c
@@ -0,0 +1,3215 @@
+/*.............................................................................
+ * Project : SANE library for Plustek flatbed scanners.
+ *.............................................................................
+ */
+
+/** @file plustek-usbshading.c
+ * @brief Calibration routines.
+ *
+ * Based on sources acquired from Plustek Inc.<br>
+ * Copyright (C) 2001-2013 Gerhard Jaeger <gerhard@gjaeger.de>
+ *
+ * History:
+ * - 0.40 - starting version of the USB support
+ * - 0.41 - minor fixes
+ * - added workaround stuff for EPSON1250
+ * - 0.42 - added workaround stuff for UMAX 3400
+ * - 0.43 - added call to usb_switchLamp before reading dark data
+ * - 0.44 - added more debug output and bypass calibration
+ * - added dump of shading data
+ * - 0.45 - added coarse calibration for CIS devices
+ * - added _WAF_SKIP_FINE to skip the results of fine calibration
+ * - CanoScan fixes and fine-tuning
+ * - 0.46 - CanoScan will now be calibrated by code in plustek-usbcal.c
+ * - added functions to save and restore calibration data from a file
+ * - fixed some TPA issues
+ * - 0.47 - made calibration work on big-endian machines
+ * - 0.48 - added more debug output
+ * - added usb_AutoWarmup()
+ * - 0.49 - a_bRegs is now part of the device structure
+ * - using now PhyDpi.y as selector for the motor MCLK range
+ * - 0.50 - readded kCIS670 to add 5% extra to LiDE20 fine calibration
+ * - fixed line statistics and added data output
+ * - 0.51 - added fine calibration cache
+ * - 0.52 - added get_ptrs to let various sensororders work
+ * correctly
+ * - fixed warning condition
+ * .
+ * <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>
+ */
+
+/************** global stuff - I hate it, but we need it... ******************/
+
+#define _MAX_AUTO_WARMUP 60 /**< number of loops */
+#define _AUTO_SLEEP 1 /**< time to sleep, when lamp is not stable */
+#define _AUTO_THRESH 60 /**< threshold for stop waiting (normal lamp) */
+#define _AUTO_TPA_THRESH 40 /**< threshold for stop waiting (TPA lamp) */
+
+#define _MAX_GAIN_LOOPS 10 /**< max number of loops for coarse calibration */
+#define _TLOOPS 3 /**< test loops for transfer rate measurement */
+
+#define SWAP_COARSE
+#define SWAP_FINE
+
+/************************** static variables *********************************/
+
+static RGBUShortDef Gain_Hilight;
+static RGBUShortDef Gain_NegHilight;
+static RGBByteDef Gain_Reg;
+
+static u_long m_dwPixels;
+static ScanParam m_ScanParam;
+static u_long m_dwIdealGain;
+
+static double dMCLK, dExpect, dMax;
+static double dMCLK_ADF;
+
+/** do some statistics...
+ */
+static void usb_line_statistics( char *cmt, u_short* buf,
+ u_long dim_x, SANE_Bool color )
+{
+ char fn[50];
+ int i, channel;
+ u_long dw, imad, imid, alld, cld, cud;
+ u_short mid, mad, aved, lbd, ubd, tmp;
+ MonoWordDef *pvd, *pvd2;
+ FILE *fp;
+ SANE_Bool swap = usb_HostSwap();
+
+ pvd = pvd2 = (MonoWordDef*)buf;
+
+ if( color )
+ channel = 3;
+ else
+ channel = 1;
+
+ for( i = 0; i < channel; i++ ) {
+
+ mid = 0xFFFF;
+ mad = 0;
+ imid = 0;
+ imad = 0;
+ alld = 0;
+
+ fp = NULL;
+ if( DBG_LEVEL >= _DBG_DCALDATA ) {
+ sprintf( fn, "%scal%u.dat", cmt, i );
+ fp = fopen( fn, "w+b" );
+ if( fp == NULL )
+ DBG( _DBG_ERROR, "Could not open %s\n", fn );
+ }
+
+ /* do the standard min/max stuff */
+ for( dw = 0; dw < dim_x; pvd++, dw++ ) {
+
+ if( swap )
+ tmp = _LOBYTE(pvd->Mono) * 256 + _HIBYTE(pvd->Mono);
+ else
+ tmp = pvd->Mono;
+
+ if( tmp > mad ) {
+ mad = tmp;
+ imad = dw;
+ }
+
+ if( tmp < mid ) {
+ mid = tmp;
+ imid = dw;
+ }
+
+ if( fp )
+ fprintf(fp, "%u\n", tmp );
+
+ alld += tmp;
+ }
+
+ if( fp )
+ fclose(fp);
+
+ /* calculate average and 5% limit */
+ aved = (u_short)(alld/dim_x);
+ lbd = aved - 0.05*aved;
+ ubd = aved + 0.05*aved;
+ cld = 0;
+ cud = 0;
+
+ /* find the number of values beyond the 5% limits */
+ for( dw = 0; dw < dim_x; pvd2++, dw++ ) {
+
+ if( swap )
+ tmp = _LOBYTE(pvd2->Mono) * 256 + _HIBYTE(pvd2->Mono);
+ else
+ tmp = pvd2->Mono;
+
+ if( tmp > ubd ) cud++;
+ if( tmp < lbd ) cld++;
+ }
+
+ DBG( _DBG_INFO2, "Color[%u] (%s): %lu all "
+ "min=%u(%lu) max=%u(%lu) ave=%u\n",
+ i, cmt, dim_x, mid, imid, mad, imad, aved);
+ DBG( _DBG_INFO2, "5%%: low@%u (count=%lu), upper@%u (count=%lu)\n",
+ lbd, cld, ubd, cud);
+ }
+}
+
+/**
+ */
+static void
+usb_PrepareFineCal( Plustek_Device *dev, ScanParam *tmp_sp, u_short cal_dpi )
+{
+ ScanParam *sp = &dev->scanning.sParam;
+ DCapsDef *scaps = &dev->usbDev.Caps;
+
+ *tmp_sp = *sp;
+
+ if( dev->adj.cacheCalData ) {
+
+ DBG( _DBG_INFO2, "* Cal-cache active, tweaking scanparams"
+ " - DPI=%u!\n", cal_dpi );
+
+ tmp_sp->UserDpi.x = usb_SetAsicDpiX(dev, sp->UserDpi.x );
+ if( cal_dpi != 0 )
+ tmp_sp->UserDpi.x = cal_dpi;
+
+ tmp_sp->PhyDpi = scaps->OpticDpi;
+ tmp_sp->Origin.x = 0;
+ tmp_sp->Size.dwPixels = scaps->Normal.Size.x *
+ usb_SetAsicDpiX(dev, tmp_sp->UserDpi.x)/ 300UL;
+ }
+
+#if 0
+ if( tmp_sp->PhyDpi.x > 75)
+ tmp_sp->Size.dwLines = 64;
+ else
+#endif
+ tmp_sp->Size.dwLines = 32;
+
+ tmp_sp->Origin.y = 0;
+ tmp_sp->bBitDepth = 16;
+
+ tmp_sp->UserDpi.y = scaps->OpticDpi.y;
+ tmp_sp->Size.dwBytes = tmp_sp->Size.dwPixels * 2 * tmp_sp->bChannels;
+
+ if( usb_IsCISDevice(dev) && (tmp_sp->bDataType == SCANDATATYPE_Color)) {
+ tmp_sp->Size.dwBytes *= 3;
+ }
+
+ tmp_sp->dMCLK = dMCLK;
+}
+
+/**
+ */
+static double usb_GetMCLK( Plustek_Device *dev, ScanParam *param )
+{
+ int idx, i;
+ double mclk;
+ ClkMotorDef *clk;
+ HWDef *hw = &dev->usbDev.HwSetting;
+
+ clk = usb_GetMotorSet( hw->motorModel );
+ idx = 0;
+ for( i = 0; i < _MAX_CLK; i++ ) {
+ if( param->PhyDpi.y <= dpi_ranges[i] )
+ break;
+ idx++;
+ }
+ if( idx >= _MAX_CLK )
+ idx = _MAX_CLK - 1;
+
+ if( param->bDataType != SCANDATATYPE_Color ) {
+
+ if( param->bBitDepth > 8 )
+ mclk = clk->gray_mclk_16[idx];
+ else
+ mclk = clk->gray_mclk_8[idx];
+ } else {
+ if( param->bBitDepth > 8 )
+ mclk = clk->color_mclk_16[idx];
+ else
+ mclk = clk->color_mclk_8[idx];
+ }
+
+ DBG( _DBG_INFO, "GETMCLK[%u/%u], using entry %u: %.3f, %u\n",
+ hw->motorModel, param->bDataType, idx, mclk, param->PhyDpi.x );
+ return mclk;
+}
+
+/** usb_SetMCLK
+ * get the MCLK out of our table
+ */
+static void usb_SetMCLK( Plustek_Device *dev, ScanParam *param )
+{
+ HWDef *hw = &dev->usbDev.HwSetting;
+
+ dMCLK = usb_GetMCLK( dev, param );
+ param->dMCLK = dMCLK;
+
+ DBG( _DBG_INFO, "SETMCLK[%u/%u]: %.3f\n",
+ hw->motorModel, param->bDataType, dMCLK );
+}
+
+/** usb_SetDarkShading
+ * download the dark shading data to Merlins' DRAM
+ */
+static SANE_Bool usb_SetDarkShading( Plustek_Device *dev, u_char channel,
+ void *coeff_buffer, u_short wCount )
+{
+ int res;
+ u_char *regs = dev->usbDev.a_bRegs;
+
+ regs[0x03] = 0;
+ if( channel == CHANNEL_green )
+ regs[0x03] |= 4;
+ else
+ if( channel == CHANNEL_blue )
+ regs[0x03] |= 8;
+
+ if( usbio_WriteReg( dev->fd, 0x03, regs[0x03] )) {
+
+ /* Dataport address is always 0 for setting offset coefficient */
+ regs[0x04] = 0;
+ regs[0x05] = 0;
+
+ res = sanei_lm983x_write( dev->fd, 0x04, &regs[0x04], 2, SANE_TRUE );
+
+ /* Download offset coefficients */
+ if( SANE_STATUS_GOOD == res ) {
+
+ res = sanei_lm983x_write( dev->fd, 0x06,
+ (u_char*)coeff_buffer, wCount, SANE_FALSE );
+ if( SANE_STATUS_GOOD == res )
+ return SANE_TRUE;
+ }
+ }
+
+ DBG( _DBG_ERROR, "usb_SetDarkShading() failed\n" );
+ return SANE_FALSE;
+}
+
+/** usb_SetWhiteShading
+ * download the white shading data to Merlins' DRAM
+ */
+static SANE_Bool usb_SetWhiteShading( Plustek_Device *dev, u_char channel,
+ void *data_buffer, u_short wCount )
+{
+ int res;
+ u_char *regs = dev->usbDev.a_bRegs;
+
+ regs[0x03] = 1;
+ if (channel == CHANNEL_green)
+ regs [0x03] |= 4;
+ else
+ if (channel == CHANNEL_blue)
+ regs[0x03] |= 8;
+
+ if( usbio_WriteReg( dev->fd, 0x03, regs[0x03] )) {
+
+ /* Dataport address is always 0 for setting offset coefficient */
+ regs[0x04] = 0;
+ regs[0x05] = 0;
+
+ res = sanei_lm983x_write( dev->fd, 0x04, &regs[0x04], 2, SANE_TRUE );
+
+ /* Download offset coefficients */
+ if( SANE_STATUS_GOOD == res ) {
+ res = sanei_lm983x_write(dev->fd, 0x06,
+ (u_char*)data_buffer, wCount, SANE_FALSE );
+ if( SANE_STATUS_GOOD == res )
+ return SANE_TRUE;
+ }
+ }
+
+ DBG( _DBG_ERROR, "usb_SetWhiteShading() failed\n" );
+ return SANE_FALSE;
+}
+
+/** usb_GetSWOffsetGain4TPA
+ * preset the offset and gain parameter for fine calibration for
+ * TPA/ADF scanning
+ */
+static void usb_GetSWOffsetGain4TPA( Plustek_Device *dev )
+{
+ ScanParam *param = &dev->scanning.sParam;
+ DCapsDef *sCaps = &dev->usbDev.Caps;
+
+ switch( sCaps->bCCD ) {
+ case kEPSON:
+ DBG( _DBG_INFO2, "kEPSON TPA adjustments\n" );
+ param->swGain[0] = 1000;
+ param->swGain[1] = 1000;
+ param->swGain[2] = 1000;
+ break;
+ }
+}
+
+/** usb_GetSWOffsetGain
+ * preset the offset and gain parameter for fine calibration for normal
+ * scanning
+ */
+static void usb_GetSWOffsetGain( Plustek_Device *dev )
+{
+ ScanParam *param = &dev->scanning.sParam;
+ DCapsDef *sCaps = &dev->usbDev.Caps;
+ HWDef *hw = &dev->usbDev.HwSetting;
+
+ param->swOffset[0] = 0;
+ param->swOffset[1] = 0;
+ param->swOffset[2] = 0;
+
+ param->swGain[0] = 1000;
+ param->swGain[1] = 1000;
+ param->swGain[2] = 1000;
+
+ if( param->bSource != SOURCE_Reflection ) {
+ usb_GetSWOffsetGain4TPA( dev );
+ return;
+ }
+
+ /* only valid for normal scanning... */
+ switch( sCaps->bCCD ) {
+
+ case kEPSON:
+ DBG( _DBG_INFO2, "kEPSON adjustments\n" );
+#if 0
+ param->swGain[0] = 800;
+ param->swGain[1] = 800;
+ param->swGain[2] = 800;
+#endif
+ break;
+
+ case kNECSLIM:
+ DBG( _DBG_INFO2, "kNECSLIM adjustments\n" );
+ if( param->PhyDpi.x <= 150 ) {
+ param->swOffset[0] = 600;
+ param->swOffset[1] = 500;
+ param->swOffset[2] = 300;
+ param->swGain[0] = 960;
+ param->swGain[1] = 970;
+ param->swGain[2] = 1000;
+ } else if (param->PhyDpi.x <= 300) {
+ param->swOffset[0] = 700;
+ param->swOffset[1] = 600;
+ param->swOffset[2] = 400;
+ param->swGain[0] = 967;
+ param->swGain[1] = 980;
+ param->swGain[2] = 1000;
+ } else {
+ param->swOffset[0] = 900;
+ param->swOffset[1] = 850;
+ param->swOffset[2] = 620;
+ param->swGain[0] = 965;
+ param->swGain[1] = 980;
+ param->swGain[2] = 1000;
+ }
+ break;
+
+ case kNEC8861:
+ DBG( _DBG_INFO2, "kNEC8861 adjustments\n" );
+ break;
+
+ case kCIS670:
+ DBG( _DBG_INFO2, "kCIS670 adjustments\n" );
+ if(param->bDataType == SCANDATATYPE_Color) {
+
+ param->swGain[0] =
+ param->swGain[1] =
+ param->swGain[2] = 952;
+
+ param->swOffset[0] =
+ param->swOffset[1] =
+ param->swOffset[2] = 1000;
+ }
+ break;
+#if 0
+ case kCIS650:
+ case kCIS1220:
+
+ DBG( _DBG_INFO2, "kCIS adjustments\n" );
+ if(param->bDataType == SCANDATATYPE_Color) {
+
+ param->swGain[0] =
+ param->swGain[1] =
+ param->swGain[2] = 952;
+
+ param->swOffset[0] =
+ param->swOffset[1] =
+ param->swOffset[2] = 1000;
+ }
+ break;
+ case kCIS1240:
+ DBG( _DBG_INFO2, "kCIS1240 adjustments\n" );
+ if(param->bDataType == SCANDATATYPE_Color) {
+
+ param->swGain[0] = 950;
+ param->swGain[1] = 950;
+ param->swGain[2] = 900;
+
+ param->swOffset[0] =
+ param->swOffset[1] =
+ param->swOffset[2] = 0; /*1000;*/
+ }
+ break;
+#endif
+
+ case kNEC3799:
+ DBG( _DBG_INFO2, "kNEC3799 adjustments\n" );
+ if( sCaps->bPCB == 2 ) {
+ if( param->PhyDpi.x <= 150 ) {
+ param->swOffset[0] = 600;
+ param->swOffset[1] = 500;
+ param->swOffset[2] = 300;
+ param->swGain[0] = 960;
+ param->swGain[1] = 970;
+ param->swGain[2] = 1000;
+ } else if (param->PhyDpi.x <= 300) {
+ param->swOffset[0] = 700;
+ param->swOffset[1] = 600;
+ param->swOffset[2] = 400;
+ param->swGain[0] = 967;
+ param->swGain[1] = 980;
+ param->swGain[2] = 1000;
+ } else {
+ param->swOffset[0] = 900;
+ param->swOffset[1] = 850;
+ param->swOffset[2] = 620;
+ param->swGain[0] = 965;
+ param->swGain[1] = 980;
+ param->swGain[2] = 1000;
+ }
+ } else if( hw->motorModel == MODEL_KaoHsiung ) {
+ param->swOffset[0] = 1950;
+ param->swOffset[1] = 1700;
+ param->swOffset[2] = 1250;
+ param->swGain[0] = 955;
+ param->swGain[1] = 950;
+ param->swGain[2] = 1000;
+ } else { /* MODEL_Hualien */
+ if( param->PhyDpi.x <= 300 ) {
+ if( param->bBitDepth > 8 ) {
+ param->swOffset[0] = 0;
+ param->swOffset[1] = 0;
+ param->swOffset[2] = -300;
+ param->swGain[0] = 970;
+ param->swGain[1] = 985;
+ param->swGain[2] = 1050;
+ } else {
+ param->swOffset[0] = -485;
+ param->swOffset[1] = -375;
+ param->swOffset[2] = -628;
+ param->swGain[0] = 970;
+ param->swGain[1] = 980;
+ param->swGain[2] = 1050;
+ }
+ } else {
+ if( param->bBitDepth > 8 ) {
+ param->swOffset[0] = 1150;
+ param->swOffset[1] = 1000;
+ param->swOffset[2] = 700;
+ param->swGain[0] = 990;
+ param->swGain[1] = 1000;
+ param->swGain[2] = 1050;
+ } else {
+ param->swOffset[0] = -30;
+ param->swOffset[1] = 0;
+ param->swOffset[2] = -250;
+ param->swGain[0] = 985;
+ param->swGain[1] = 995;
+ param->swGain[2] = 1050;
+ }
+ }
+ }
+ break;
+
+ case kSONY548:
+ DBG( _DBG_INFO2, "kSONY548 adjustments\n" );
+ if(param->bDataType == SCANDATATYPE_Color)
+ {
+ if(param->PhyDpi.x <= 75)
+ {
+ param->swOffset[0] = 650;
+ param->swOffset[1] = 850;
+ param->swOffset[2] = 500;
+ param->swGain[0] = 980;
+ param->swGain[1] = 1004;
+ param->swGain[2] = 1036;
+ }
+ else if(param->PhyDpi.x <= 300)
+ {
+ param->swOffset[0] = 700;
+ param->swOffset[1] = 900;
+ param->swOffset[2] = 550;
+ param->swGain[0] = 970;
+ param->swGain[1] = 995;
+ param->swGain[2] = 1020;
+ }
+ else if(param->PhyDpi.x <= 400)
+ {
+ param->swOffset[0] = 770;
+ param->swOffset[1] = 1010;
+ param->swOffset[2] = 600;
+ param->swGain[0] = 970;
+ param->swGain[1] = 993;
+ param->swGain[2] = 1023;
+ }
+ else
+ {
+ param->swOffset[0] = 380;
+ param->swOffset[1] = 920;
+ param->swOffset[2] = 450;
+ param->swGain[0] = 957;
+ param->swGain[1] = 980;
+ param->swGain[2] = 1008;
+ }
+ }
+ else
+ {
+ if(param->PhyDpi.x <= 75)
+ {
+ param->swOffset[1] = 1250;
+ param->swGain[1] = 950;
+ }
+ else if(param->PhyDpi.x <= 300)
+ {
+ param->swOffset[1] = 1250;
+ param->swGain[1] = 950;
+ }
+ else if(param->PhyDpi.x <= 400)
+ {
+ param->swOffset[1] = 1250;
+ param->swGain[1] = 950;
+ }
+ else
+ {
+ param->swOffset[1] = 1250;
+ param->swGain[1] = 950;
+ }
+ }
+ break;
+
+ case kNEC3778:
+ DBG( _DBG_INFO2, "kNEC3778 adjustments\n" );
+ if((_LM9831 == hw->chip) && (param->PhyDpi.x <= 300))
+ {
+ param->swOffset[0] = 0;
+ param->swOffset[1] = 0;
+ param->swOffset[2] = 0;
+ param->swGain[0] = 900;
+ param->swGain[1] = 920;
+ param->swGain[2] = 980;
+ }
+ else if( hw->motorModel == MODEL_HuaLien && param->PhyDpi.x > 800)
+ {
+ param->swOffset[0] = 0;
+ param->swOffset[1] = 0;
+ param->swOffset[2] = -200;
+ param->swGain[0] = 980;
+ param->swGain[1] = 930;
+ param->swGain[2] = 1080;
+ }
+ else
+ {
+ param->swOffset[0] = -304;
+ param->swOffset[1] = -304;
+ param->swOffset[2] = -304;
+ param->swGain[0] = 910;
+ param->swGain[1] = 920;
+ param->swGain[2] = 975;
+ }
+
+ if(param->bDataType == SCANDATATYPE_BW && param->PhyDpi.x <= 300)
+ {
+ param->swOffset[1] = 1000;
+ param->swGain[1] = 1000;
+ }
+ break;
+ }
+}
+
+/** according to the pixel values,
+ */
+static u_char usb_GetNewGain( Plustek_Device *dev, u_short wMax, int channel )
+{
+ double dRatio, dAmp;
+ u_long dwInc, dwDec;
+ u_char bGain;
+
+ if( !wMax )
+ wMax = 1;
+
+ dAmp = 0.93 + 0.067 * dev->usbDev.a_bRegs[0x3b+channel];
+
+ if((m_dwIdealGain / (wMax / dAmp)) < 3) {
+
+ dRatio = ((double) m_dwIdealGain * dAmp / wMax - 0.93) / 0.067;
+ if(ceil(dRatio) > 0x3f)
+ return 0x3f;
+
+ dwInc = (u_long)((0.93 + ceil (dRatio) * 0.067) * wMax / dAmp);
+ dwDec = (u_long)((0.93 + floor (dRatio) * 0.067) * wMax / dAmp);
+ if((dwInc >= 0xff00) ||
+ (labs (dwInc - m_dwIdealGain) > labs(dwDec - m_dwIdealGain))) {
+ bGain = (u_char)floor(dRatio);
+ } else {
+ bGain = (u_char)ceil(dRatio);
+ }
+
+ } else {
+
+ dRatio = m_dwIdealGain / (wMax / dAmp);
+ dAmp = floor((dRatio / 3 - 0.93)/0.067);
+
+ if( dAmp > 31 )
+ dAmp = 31;
+
+ bGain = (u_char)dAmp + 32;
+ }
+
+ if( bGain > 0x3f ) {
+ DBG( _DBG_INFO, "* GAIN Overflow!!!\n" );
+ bGain = 0x3f;
+ }
+ return bGain;
+}
+
+/** limit and set register given by address
+ * @param gain -
+ * @param reg -
+ */
+static void setAdjGain( int gain, u_char *reg )
+{
+ if( gain >= 0 ) {
+
+ if( gain > 0x3f )
+ *reg = 0x3f;
+ else
+ *reg = gain;
+ }
+}
+
+/**
+ * @param channel - 0 = red, 1 = green, 2 = blue
+ * @param max -
+ * @param ideal -
+ * @param l_on -
+ * @param l_off -
+ * @return
+ */
+static SANE_Bool adjLampSetting( Plustek_Device *dev, int channel, u_long max,
+ u_long ideal, u_short l_on, u_short *l_off )
+{
+ SANE_Bool adj = SANE_FALSE;
+ u_long lamp_on;
+
+ /* so if the image was too bright, we dim the lamps by 3% */
+ if( max > ideal ) {
+
+ lamp_on = (*l_off) - l_on;
+ lamp_on = (lamp_on * 97)/100;
+ *l_off = l_on + lamp_on;
+ DBG( _DBG_INFO2,
+ "lamp(%u) adjust (-3%%): %i %i\n", channel, l_on, *l_off );
+ adj = SANE_TRUE;
+ }
+
+ /* if the image was too dull, increase lamp by 1% */
+ if( dev->usbDev.a_bRegs[0x3b + channel] == 63 ) {
+
+ lamp_on = (*l_off) - l_on;
+ lamp_on += (lamp_on/100);
+ *l_off = l_on + lamp_on;
+ DBG( _DBG_INFO2,
+ "lamp(%u) adjust (+1%%): %i %i\n", channel, l_on, *l_off );
+ adj = SANE_TRUE;
+ }
+
+ return adj;
+}
+
+/** usb_AdjustGain
+ * function to perform the "coarse calibration step" part 1.
+ * We scan reference image pixels to determine the optimum coarse gain settings
+ * for R, G, B. (Analog gain and offset prior to ADC). These coefficients are
+ * applied at the line rate during normal scanning.
+ * The scanned line should contain a white strip with some black at the
+ * beginning. The function searches for the maximum value which corresponds to
+ * the maximum white value.
+ * Affects register 0x3b, 0x3c and 0x3d
+ *
+ */
+static SANE_Bool usb_AdjustGain( Plustek_Device *dev, int fNegative )
+{
+ char tmp[40];
+ int i;
+ double min_mclk;
+ ScanDef *scanning = &dev->scanning;
+ DCapsDef *scaps = &dev->usbDev.Caps;
+ HWDef *hw = &dev->usbDev.HwSetting;
+ u_long *scanbuf = scanning->pScanBuffer;
+ u_char *regs = dev->usbDev.a_bRegs;
+ u_long dw, start, end, len;
+ SANE_Bool fRepeatITA = SANE_TRUE;
+
+ if( usb_IsEscPressed())
+ return SANE_FALSE;
+
+ bMaxITA = 0xff;
+
+ DBG( _DBG_INFO, "#########################\n" );
+ DBG( _DBG_INFO, "usb_AdjustGain()\n" );
+ if((dev->adj.rgain != -1) &&
+ (dev->adj.ggain != -1) && (dev->adj.bgain != -1)) {
+ setAdjGain( dev->adj.rgain, &regs[0x3b] );
+ setAdjGain( dev->adj.ggain, &regs[0x3c] );
+ setAdjGain( dev->adj.bgain, &regs[0x3d] );
+ DBG( _DBG_INFO, "- function skipped, using frontend values!\n" );
+ return SANE_TRUE;
+ }
+
+ min_mclk = usb_GetMCLK( dev, &scanning->sParam );
+
+ /* define the strip to scan for coarse calibration */
+ m_ScanParam.Size.dwLines = 1;
+ m_ScanParam.Size.dwPixels = scaps->Normal.Size.x *
+ scaps->OpticDpi.x / 300UL;
+ m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels *
+ 2 * m_ScanParam.bChannels;
+
+ if( usb_IsCISDevice(dev) && m_ScanParam.bDataType == SCANDATATYPE_Color)
+ m_ScanParam.Size.dwBytes *= 3;
+
+ m_ScanParam.Origin.x = (u_short)((u_long) hw->wActivePixelsStart *
+ 300UL / scaps->OpticDpi.x);
+ m_ScanParam.bCalibration = PARAM_Gain;
+
+ start = 0;
+ len = m_ScanParam.Size.dwPixels;
+
+ if( scanning->sParam.bSource == SOURCE_Transparency ) {
+ start = scaps->Positive.DataOrigin.x * scaps->OpticDpi.x / 300UL;
+ len = scaps->Positive.Size.x * scaps->OpticDpi.x / 300UL;
+ }
+ else if( scanning->sParam.bSource == SOURCE_Negative ) {
+ start = scaps->Negative.DataOrigin.x * scaps->OpticDpi.x / 300UL;
+ len = scaps->Negative.Size.x * scaps->OpticDpi.x / 300UL;
+ }
+ end = start + len;
+
+ start = ((u_long)dev->usbDev.pSource->DataOrigin.x*scaps->OpticDpi.x/300UL);
+ len = ((u_long)dev->usbDev.pSource->Size.x * scaps->OpticDpi.x / 300UL);
+
+ DBG( _DBG_INFO2, "Coarse Calibration Strip:\n" );
+ DBG( _DBG_INFO2, "Lines = %lu\n", m_ScanParam.Size.dwLines );
+ DBG( _DBG_INFO2, "Pixels = %lu\n", m_ScanParam.Size.dwPixels );
+ DBG( _DBG_INFO2, "Bytes = %lu\n", m_ScanParam.Size.dwBytes );
+ DBG( _DBG_INFO2, "Origin.X = %u\n", m_ScanParam.Origin.x );
+ DBG( _DBG_INFO2, "Start = %lu\n", start );
+ DBG( _DBG_INFO2, "Len = %lu\n", len );
+ DBG( _DBG_INFO2, "End = %lu\n", end );
+ DBG( _DBG_INFO, "MIN MCLK = %.2f\n", min_mclk );
+
+ i = 0;
+TOGAIN:
+ m_ScanParam.dMCLK = dMCLK;
+
+ if( !usb_SetScanParameters( dev, &m_ScanParam ))
+ return SANE_FALSE;
+
+ if( !usb_ScanBegin( dev, SANE_FALSE) ||
+ !usb_ScanReadImage( dev, scanbuf, m_ScanParam.Size.dwPhyBytes ) ||
+ !usb_ScanEnd( dev )) {
+ DBG( _DBG_ERROR, "usb_AdjustGain() failed\n" );
+ return SANE_FALSE;
+ }
+
+ DBG( _DBG_INFO2, "PhyBytes = %lu\n", m_ScanParam.Size.dwPhyBytes );
+ DBG( _DBG_INFO2, "PhyPixels = %lu\n", m_ScanParam.Size.dwPhyPixels );
+
+ if( end > m_ScanParam.Size.dwPhyPixels )
+ end = m_ScanParam.Size.dwPhyPixels;
+
+ sprintf( tmp, "coarse-gain-%u.raw", i++ );
+
+ dumpPicInit(&m_ScanParam, tmp);
+ dumpPic(tmp, (u_char*)scanbuf, m_ScanParam.Size.dwPhyBytes, 0);
+
+#ifdef SWAP_COARSE
+ if(usb_HostSwap())
+#endif
+ usb_Swap((u_short *)scanbuf, m_ScanParam.Size.dwPhyBytes );
+
+ if( fNegative ) {
+
+ if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
+
+ RGBULongDef rgb, rgbSum;
+ u_long dwLoop = len / 20 * 20;
+ u_long dw10, dwGray, dwGrayMax;
+
+ rgb.Red = rgb.Green = rgb.Blue = dwGrayMax = 0;
+
+ for( dw = start; dwLoop; dwLoop-- ) {
+
+ rgbSum.Red = rgbSum.Green = rgbSum.Blue = 0;
+ for( dw10 = 20; dw10--; dw++ ) {
+ rgbSum.Red += (u_long)(((RGBULongDef*)scanbuf)[dw].Red);
+ rgbSum.Green += (u_long)(((RGBULongDef*)scanbuf)[dw].Green);
+ rgbSum.Blue += (u_long)(((RGBULongDef*)scanbuf)[dw].Blue);
+ }
+
+ /* do some weighting of the color planes for negatives */
+ dwGray = (rgbSum.Red * 30UL + rgbSum.Green * 59UL + rgbSum.Blue * 11UL) / 100UL;
+
+ if( fNegative == 1 || rgbSum.Red > rgbSum.Green) {
+ if( dwGray > dwGrayMax ) {
+ dwGrayMax = dwGray;
+ rgb.Red = rgbSum.Red;
+ rgb.Green = rgbSum.Green;
+ rgb.Blue = rgbSum.Blue;
+ }
+ }
+ }
+
+ Gain_Hilight.Red = (u_short)(rgb.Red / 20UL);
+ Gain_Hilight.Green = (u_short)(rgb.Green / 20UL);
+ Gain_Hilight.Blue = (u_short)(rgb.Blue / 20UL);
+ DBG(_DBG_INFO2, "MAX(R,G,B)= 0x%04x(%u), 0x%04x(%u), 0x%04x(%u)\n",
+ Gain_Hilight.Red, Gain_Hilight.Red, Gain_Hilight.Green,
+ Gain_Hilight.Green, Gain_Hilight.Blue, Gain_Hilight.Blue );
+
+ regs[0x3b] = usb_GetNewGain(dev,Gain_Hilight.Red, 0 );
+ regs[0x3c] = usb_GetNewGain(dev,Gain_Hilight.Green, 1 );
+ regs[0x3d] = usb_GetNewGain(dev,Gain_Hilight.Blue, 2 );
+
+ } else {
+
+ u_long dwMax = 0, dwSum;
+ u_long dwLoop = len / 20 * 20;
+ u_long dw10;
+
+ for( dw = start; dwLoop; dwLoop-- ) {
+
+ dwSum = 0;
+ for( dw10 = 20; dw10--; dw++ )
+ dwSum += (u_long)((u_short*)scanbuf)[dw];
+
+ if((fNegative == 1) || (dwSum < 0x6000 * 20)) {
+ if( dwMax < dwSum )
+ dwMax = dwSum;
+ }
+ }
+ Gain_Hilight.Red = Gain_Hilight.Green =
+ Gain_Hilight.Blue = (u_short)(dwMax / 20UL);
+
+ Gain_Reg.Red = Gain_Reg.Green =
+ Gain_Reg.Blue = regs[0x3b] =
+ regs[0x3c] = regs[0x3d] = usb_GetNewGain(dev,Gain_Hilight.Green,1);
+ }
+ } else {
+
+ if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
+
+ RGBUShortDef max_rgb, min_rgb, tmp_rgb;
+ u_long dwR, dwG, dwB;
+ u_long dwDiv = 10;
+ u_long dwLoop1 = len / dwDiv, dwLoop2;
+
+ max_rgb.Red = max_rgb.Green = max_rgb.Blue = 0;
+ min_rgb.Red = min_rgb.Green = min_rgb.Blue = 0xffff;
+
+ /* find out the max pixel value for R, G, B */
+ for( dw = start; dwLoop1; dwLoop1-- ) {
+
+ /* do some averaging... */
+ for (dwLoop2 = dwDiv, dwR = dwG = dwB = 0;
+ dwLoop2; dwLoop2--, dw++) {
+ if( usb_IsCISDevice(dev)) {
+ dwR += ((u_short*)scanbuf)[dw];
+ dwG += ((u_short*)scanbuf)[dw+m_ScanParam.Size.dwPhyPixels+1];
+ dwB += ((u_short*)scanbuf)[dw+(m_ScanParam.Size.dwPhyPixels+1)*2];
+ } else {
+ dwR += ((RGBUShortDef*)scanbuf)[dw].Red;
+ dwG += ((RGBUShortDef*)scanbuf)[dw].Green;
+ dwB += ((RGBUShortDef*)scanbuf)[dw].Blue;
+ }
+ }
+ dwR = dwR / dwDiv;
+ dwG = dwG / dwDiv;
+ dwB = dwB / dwDiv;
+
+ if(max_rgb.Red < dwR)
+ max_rgb.Red = dwR;
+ if(max_rgb.Green < dwG)
+ max_rgb.Green = dwG;
+ if(max_rgb.Blue < dwB)
+ max_rgb.Blue = dwB;
+
+ if(min_rgb.Red > dwR)
+ min_rgb.Red = dwR;
+ if(min_rgb.Green > dwG)
+ min_rgb.Green = dwG;
+ if(min_rgb.Blue > dwB)
+ min_rgb.Blue = dwB;
+ }
+
+ DBG(_DBG_INFO2, "MAX(R,G,B)= 0x%04x(%u), 0x%04x(%u), 0x%04x(%u)\n",
+ max_rgb.Red, max_rgb.Red, max_rgb.Green,
+ max_rgb.Green, max_rgb.Blue, max_rgb.Blue );
+ DBG(_DBG_INFO2, "MIN(R,G,B)= 0x%04x(%u), 0x%04x(%u), 0x%04x(%u)\n",
+ min_rgb.Red, min_rgb.Red, min_rgb.Green,
+ min_rgb.Green, min_rgb.Blue, min_rgb.Blue );
+
+ /* on CIS scanner, we use the min value, on CCD the max value
+ * for adjusting the gain
+ */
+ tmp_rgb = max_rgb;
+ if( usb_IsCISDevice(dev))
+ tmp_rgb = min_rgb;
+
+ DBG(_DBG_INFO2, "CUR(R,G,B)= 0x%04x(%u), 0x%04x(%u), 0x%04x(%u)\n",
+ tmp_rgb.Red, tmp_rgb.Red, tmp_rgb.Green,
+ tmp_rgb.Green, tmp_rgb.Blue, tmp_rgb.Blue);
+
+/* m_dwIdealGain = IDEAL_GainNormal;
+*/ /* min(min(rgb.wRed, rgb.wGreen), rgb.wBlue) */
+
+ regs[0x3b] = usb_GetNewGain( dev, tmp_rgb.Red, 0 );
+ regs[0x3c] = usb_GetNewGain( dev, tmp_rgb.Green, 1 );
+ regs[0x3d] = usb_GetNewGain( dev, tmp_rgb.Blue, 2 );
+
+ if( !_IS_PLUSTEKMOTOR(hw->motorModel)) {
+
+ SANE_Bool adj = SANE_FALSE;
+
+ /* on CIS devices, we can control the lamp off settings */
+ if( usb_IsCISDevice(dev)) {
+
+/* m_dwIdealGain = IDEAL_GainNormal;
+ */
+ if( adjLampSetting( dev, CHANNEL_red, tmp_rgb.Red, m_dwIdealGain,
+ hw->red_lamp_on, &hw->red_lamp_off )) {
+ adj = SANE_TRUE;
+ }
+
+ if( adjLampSetting( dev, CHANNEL_green, tmp_rgb.Green, m_dwIdealGain,
+ hw->green_lamp_on, &hw->green_lamp_off )) {
+ adj = SANE_TRUE;
+ }
+
+ if( adjLampSetting( dev, CHANNEL_blue, tmp_rgb.Blue, m_dwIdealGain,
+ hw->blue_lamp_on, &hw->blue_lamp_off)){
+ adj = SANE_TRUE;
+ }
+
+ /* on any adjustment, set the registers... */
+ if( adj ) {
+ usb_AdjustLamps( dev, SANE_TRUE );
+
+ if( i < _MAX_GAIN_LOOPS )
+ goto TOGAIN;
+ }
+
+ } else {
+
+ if((!regs[0x3b] ||
+ !regs[0x3c] || !regs[0x3d]) && dMCLK > min_mclk) {
+
+ scanning->sParam.dMCLK = dMCLK = dMCLK - 0.5;
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+
+ adj = SANE_TRUE;
+
+ } else if(((regs[0x3b] == 63) || (regs[0x3c] == 63) ||
+ (regs[0x3d] == 63)) && (dMCLK < 10)) {
+
+ scanning->sParam.dMCLK = dMCLK = dMCLK + 0.5;
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+
+ adj = SANE_TRUE;
+ }
+
+ if( adj ) {
+ if( i < _MAX_GAIN_LOOPS )
+ goto TOGAIN;
+ }
+ }
+
+ } else {
+
+ /* for MODEL KaoHsiung 1200 scanner multi-straight-line bug at
+ * 1200 dpi color mode
+ */
+ if( hw->motorModel == MODEL_KaoHsiung &&
+ scaps->bCCD == kNEC3778 && dMCLK>= 5.5 && !regs[0x3c]){
+
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+ scanning->sParam.dMCLK = dMCLK = dMCLK - 1.5;
+ goto TOGAIN;
+
+ } else if( hw->motorModel == MODEL_HuaLien &&
+ scaps->bCCD == kNEC3799 && fRepeatITA ) {
+
+ if((!regs[0x3b] ||
+ !regs[0x3c] || !regs[0x3d]) && dMCLK > 3.0) {
+
+ scanning->sParam.dMCLK = dMCLK = dMCLK - 0.5;
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+ goto TOGAIN;
+
+ } else if(((regs[0x3b] == 63) || (regs[0x3c] == 63) ||
+ (regs[0x3d] == 63)) && (dMCLK < 10)) {
+
+ scanning->sParam.dMCLK = dMCLK = dMCLK + 0.5;
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+ goto TOGAIN;
+ }
+ bMaxITA = (u_char)floor((dMCLK + 1) / 2);
+ fRepeatITA = SANE_FALSE;
+ }
+ }
+
+ } else {
+
+ u_short w_max = 0, w_min = 0xffff, w_tmp;
+
+ for( dw = start; dw < end; dw++ ) {
+ if( w_max < ((u_short*)scanbuf)[dw])
+ w_max = ((u_short*)scanbuf)[dw];
+ if( w_min > ((u_short*)scanbuf)[dw])
+ w_min = ((u_short*)scanbuf)[dw];
+ }
+
+ w_tmp = w_max;
+ if( usb_IsCISDevice(dev))
+ w_tmp = w_min;
+
+ regs[0x3b] =
+ regs[0x3c] =
+ regs[0x3d] = usb_GetNewGain(dev, w_tmp, 0);
+
+ DBG(_DBG_INFO2, "MAX(G)= 0x%04x(%u)\n", w_max, w_max );
+ DBG(_DBG_INFO2, "MIN(G)= 0x%04x(%u)\n", w_min, w_min );
+ DBG(_DBG_INFO2, "CUR(G)= 0x%04x(%u)\n", w_tmp, w_tmp );
+
+/* m_dwIdealGain = IDEAL_GainNormal;
+ */
+ if( !_IS_PLUSTEKMOTOR(hw->motorModel)) {
+
+ SANE_Bool adj = SANE_FALSE;
+
+ /* on CIS devices, we can control the lamp off settings */
+ if( usb_IsCISDevice(dev)) {
+
+ if( adjLampSetting( dev, CHANNEL_green, w_tmp, m_dwIdealGain,
+ hw->green_lamp_on, &hw->green_lamp_off )) {
+ adj = SANE_TRUE;
+ }
+
+ /* on any adjustment, set the registers... */
+ if( adj ) {
+ usb_AdjustLamps( dev, SANE_TRUE );
+
+ if( i < _MAX_GAIN_LOOPS )
+ goto TOGAIN;
+ }
+
+ } else {
+
+ if( !regs[0x3b] && (dMCLK > min_mclk)) {
+
+ scanning->sParam.dMCLK = dMCLK = dMCLK - 0.5;
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+
+ adj = SANE_TRUE;
+
+ } else if((regs[0x3b] == 63) && (dMCLK < 20)) {
+
+ scanning->sParam.dMCLK = dMCLK = dMCLK + 0.5;
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+
+ adj = SANE_TRUE;
+ }
+
+ if( adj ) {
+ if( i < _MAX_GAIN_LOOPS )
+ goto TOGAIN;
+ }
+ }
+ }
+ }
+ }
+
+ DBG( _DBG_INFO2, "REG[0x3b] = %u\n", regs[0x3b] );
+ DBG( _DBG_INFO2, "REG[0x3c] = %u\n", regs[0x3c] );
+ DBG( _DBG_INFO2, "REG[0x3d] = %u\n", regs[0x3d] );
+
+ DBG( _DBG_INFO2, "red_lamp_on = %u\n", hw->red_lamp_on );
+ DBG( _DBG_INFO2, "red_lamp_off = %u\n", hw->red_lamp_off );
+ DBG( _DBG_INFO2, "green_lamp_on = %u\n", hw->green_lamp_on );
+ DBG( _DBG_INFO2, "green_lamp_off = %u\n", hw->green_lamp_off );
+ DBG( _DBG_INFO2, "blue_lamp_on = %u\n", hw->blue_lamp_on );
+ DBG( _DBG_INFO2, "blue_lamp_off = %u\n", hw->blue_lamp_off );
+
+ DBG( _DBG_INFO, "usb_AdjustGain() done.\n" );
+ return SANE_TRUE;
+}
+
+/** usb_GetNewOffset
+ * @param pdwSum -
+ * @param pdwDiff -
+ * @param pcOffset -
+ * @param pIdeal -
+ * @param channel -
+ * @param cAdjust -
+ */
+static void usb_GetNewOffset( Plustek_Device *dev, u_long *pdwSum, u_long *pdwDiff,
+ signed char *pcOffset, u_char *pIdeal,
+ u_long channel, signed char cAdjust )
+{
+ /* IDEAL_Offset is currently set to 0x1000 = 4096 */
+ u_long dwIdealOffset = IDEAL_Offset;
+
+ if( pdwSum[channel] > dwIdealOffset ) {
+
+ /* Over ideal value */
+ pdwSum[channel] -= dwIdealOffset;
+ if( pdwSum[channel] < pdwDiff[channel] ) {
+ /* New offset is better than old one */
+ pdwDiff[channel] = pdwSum[channel];
+ pIdeal[channel] = dev->usbDev.a_bRegs[0x38 + channel];
+ }
+ pcOffset[channel] -= cAdjust;
+
+ } else {
+
+ /* Below than ideal value */
+ pdwSum[channel] = dwIdealOffset - pdwSum [channel];
+ if( pdwSum[channel] < pdwDiff[channel] ) {
+ /* New offset is better than old one */
+ pdwDiff[channel] = pdwSum[channel];
+ pIdeal[channel] = dev->usbDev.a_bRegs[0x38 + channel];
+ }
+ pcOffset[channel] += cAdjust;
+ }
+
+ if( pcOffset[channel] >= 0 )
+ dev->usbDev.a_bRegs[0x38 + channel] = pcOffset[channel];
+ else
+ dev->usbDev.a_bRegs[0x38 + channel] = (u_char)(32 - pcOffset[channel]);
+}
+
+/** usb_AdjustOffset
+ * function to perform the "coarse calibration step" part 2.
+ * We scan reference image pixels to determine the optimum coarse offset settings
+ * for R, G, B. (Analog gain and offset prior to ADC). These coefficients are
+ * applied at the line rate during normal scanning.
+ * On CIS based devices, we switch the light off, on CCD devices, we use the optical
+ * black pixels.
+ * Affects register 0x38, 0x39 and 0x3a
+ */
+static SANE_Bool usb_AdjustOffset( Plustek_Device *dev )
+{
+ char tmp[40];
+ signed char cAdjust = 16;
+ signed char cOffset[3];
+ u_char bExpect[3];
+ int i;
+ u_long dw, dwPixels;
+ u_long dwDiff[3], dwSum[3];
+
+ HWDef *hw = &dev->usbDev.HwSetting;
+ u_char *regs = dev->usbDev.a_bRegs;
+ u_long *scanbuf = dev->scanning.pScanBuffer;
+
+ if( usb_IsEscPressed())
+ return SANE_FALSE;
+
+ DBG( _DBG_INFO, "#########################\n" );
+ DBG( _DBG_INFO, "usb_AdjustOffset()\n" );
+ if((dev->adj.rofs != -1) &&
+ (dev->adj.gofs != -1) && (dev->adj.bofs != -1)) {
+ regs[0x38] = (dev->adj.rofs & 0x3f);
+ regs[0x39] = (dev->adj.gofs & 0x3f);
+ regs[0x3a] = (dev->adj.bofs & 0x3f);
+ DBG( _DBG_INFO, "- function skipped, using frontend values!\n" );
+ return SANE_TRUE;
+ }
+
+ m_ScanParam.Size.dwLines = 1;
+ m_ScanParam.Size.dwPixels = 2550;
+
+ if( usb_IsCISDevice(dev))
+ dwPixels = m_ScanParam.Size.dwPixels;
+ else
+ dwPixels = (u_long)(hw->bOpticBlackEnd - hw->bOpticBlackStart );
+
+ m_ScanParam.Size.dwPixels = 2550;
+ m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels * 2 *
+ m_ScanParam.bChannels;
+ if( usb_IsCISDevice(dev) && m_ScanParam.bDataType == SCANDATATYPE_Color )
+ m_ScanParam.Size.dwBytes *= 3;
+
+ m_ScanParam.Origin.x = (u_short)((u_long)hw->bOpticBlackStart * 300UL /
+ dev->usbDev.Caps.OpticDpi.x);
+ m_ScanParam.bCalibration = PARAM_Offset;
+ m_ScanParam.dMCLK = dMCLK;
+
+ dwDiff[0] = dwDiff[1] = dwDiff[2] = 0xffff;
+ cOffset[0] = cOffset[1] = cOffset[2] = 0;
+ bExpect[0] = bExpect[1] = bExpect[2] = 0;
+
+ regs[0x38] = regs[0x39] = regs[0x3a] = 0;
+
+ if( usb_IsCISDevice(dev)) {
+ /*
+ * if we have dark shading strip, there's no need to switch
+ * the lamp off
+ */
+ if( dev->usbDev.pSource->DarkShadOrgY >= 0 ) {
+
+ usb_ModuleToHome( dev, SANE_TRUE );
+ usb_ModuleMove ( dev, MOVE_Forward,
+ (u_long)dev->usbDev.pSource->DarkShadOrgY );
+
+ regs[0x45] &= ~0x10;
+
+ } else {
+
+ /* switch lamp off to read dark data... */
+ regs[0x29] = 0;
+ usb_switchLamp( dev, SANE_FALSE );
+ }
+ }
+
+ if( 0 == dwPixels ) {
+ DBG( _DBG_ERROR, "OpticBlackEnd = OpticBlackStart!!!\n" );
+ return SANE_FALSE;
+ }
+
+ if( !usb_SetScanParameters( dev, &m_ScanParam )) {
+ DBG( _DBG_ERROR, "usb_AdjustOffset() failed\n" );
+ return SANE_FALSE;
+ }
+
+ i = 0;
+
+ DBG( _DBG_INFO2, "S.dwPixels = %lu\n", m_ScanParam.Size.dwPixels );
+ DBG( _DBG_INFO2, "dwPixels = %lu\n", dwPixels );
+ DBG( _DBG_INFO2, "dwPhyBytes = %lu\n", m_ScanParam.Size.dwPhyBytes );
+ DBG( _DBG_INFO2, "dwPhyPixels = %lu\n", m_ScanParam.Size.dwPhyPixels );
+
+ while( cAdjust ) {
+
+ /*
+ * read data (a white calibration strip - hopefully ;-)
+ */
+ if((!usb_ScanBegin(dev, SANE_FALSE)) ||
+ (!usb_ScanReadImage(dev,scanbuf,m_ScanParam.Size.dwPhyBytes)) ||
+ !usb_ScanEnd( dev )) {
+ DBG( _DBG_ERROR, "usb_AdjustOffset() failed\n" );
+ return SANE_FALSE;
+ }
+
+ sprintf( tmp, "coarse-off-%u.raw", i++ );
+
+#ifdef SWAP_COARSE
+ if(usb_HostSwap())
+ usb_Swap((u_short *)scanbuf, m_ScanParam.Size.dwPhyBytes );
+#endif
+ dumpPicInit(&m_ScanParam, tmp);
+ dumpPic(tmp, (u_char*)scanbuf, m_ScanParam.Size.dwPhyBytes, 0);
+
+ if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
+
+ dwSum[0] = dwSum[1] = dwSum[2] = 0;
+
+ for (dw = 0; dw < dwPixels; dw++) {
+#ifndef SWAP_COARSE
+ dwSum[0] += (u_long)_HILO2WORD(((ColorWordDef*)scanbuf)[dw].HiLo[0]);
+ dwSum[1] += (u_long)_HILO2WORD(((ColorWordDef*)scanbuf)[dw].HiLo[1]);
+ dwSum[2] += (u_long)_HILO2WORD(((ColorWordDef*)scanbuf)[dw].HiLo[2]);
+#else
+ dwSum[0] += ((RGBUShortDef*)scanbuf)[dw].Red;
+ dwSum[1] += ((RGBUShortDef*)scanbuf)[dw].Green;
+ dwSum[2] += ((RGBUShortDef*)scanbuf)[dw].Blue;
+#endif
+ }
+
+ DBG( _DBG_INFO2, "RedSum = %lu, ave = %lu\n",
+ dwSum[0], dwSum[0] /dwPixels );
+ DBG( _DBG_INFO2, "GreenSum = %lu, ave = %lu\n",
+ dwSum[1], dwSum[1] /dwPixels );
+ DBG( _DBG_INFO2, "BlueSum = %lu, ave = %lu\n",
+ dwSum[2], dwSum[2] /dwPixels );
+
+ /* do averaging for each channel */
+ dwSum[0] /= dwPixels;
+ dwSum[1] /= dwPixels;
+ dwSum[2] /= dwPixels;
+
+ usb_GetNewOffset( dev, dwSum, dwDiff, cOffset, bExpect, 0, cAdjust );
+ usb_GetNewOffset( dev, dwSum, dwDiff, cOffset, bExpect, 1, cAdjust );
+ usb_GetNewOffset( dev, dwSum, dwDiff, cOffset, bExpect, 2, cAdjust );
+
+ DBG( _DBG_INFO2, "RedExpect = %u\n", bExpect[0] );
+ DBG( _DBG_INFO2, "GreenExpect = %u\n", bExpect[1] );
+ DBG( _DBG_INFO2, "BlueExpect = %u\n", bExpect[2] );
+
+ } else {
+ dwSum[0] = 0;
+
+ for( dw = 0; dw < dwPixels; dw++ ) {
+#ifndef SWAP_COARSE
+ dwSum[0] += (u_long)_HILO2WORD(((HiLoDef*)scanbuf)[dw]);
+#else
+ dwSum[0] += ((u_short*)scanbuf)[dw];
+#endif
+ }
+ dwSum [0] /= dwPixels;
+ usb_GetNewOffset( dev, dwSum, dwDiff, cOffset, bExpect, 0, cAdjust );
+ regs[0x3a] = regs[0x39] = regs[0x38];
+
+ DBG(_DBG_INFO2,"Sum = %lu, ave = %lu\n",dwSum[0],dwSum[0]/dwPixels);
+ DBG(_DBG_INFO2,"Expect = %u\n", bExpect[0]);
+ }
+
+ _UIO(sanei_lm983x_write(dev->fd, 0x38, &regs[0x38], 3, SANE_TRUE));
+ cAdjust >>= 1;
+ }
+
+ if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
+ regs[0x38] = bExpect[0];
+ regs[0x39] = bExpect[1];
+ regs[0x3a] = bExpect[2];
+ } else {
+
+ regs[0x38] = regs[0x39] = regs[0x3a] = bExpect[0];
+ }
+
+ DBG( _DBG_INFO2, "REG[0x38] = %u\n", regs[0x38] );
+ DBG( _DBG_INFO2, "REG[0x39] = %u\n", regs[0x39] );
+ DBG( _DBG_INFO2, "REG[0x3a] = %u\n", regs[0x3a] );
+ DBG( _DBG_INFO, "usb_AdjustOffset() done.\n" );
+
+ /* switch it on again on CIS based scanners */
+ if( usb_IsCISDevice(dev)) {
+
+ if( dev->usbDev.pSource->DarkShadOrgY < 0 ) {
+ regs[0x29] = hw->bReg_0x29;
+ usb_switchLamp( dev, SANE_TRUE );
+ usbio_WriteReg( dev->fd, 0x29, regs[0x29]);
+ }
+ }
+
+ return SANE_TRUE;
+}
+
+/** this function tries to find out some suitable values for the dark
+ * fine calibration. If the device owns a black calibration strip
+ * the data is simply copied. If not, then the white strip is read
+ * with the lamp switched off...
+ */
+static void usb_GetDarkShading( Plustek_Device *dev, u_short *pwDest,
+ HiLoDef *pSrce, u_long dwPixels,
+ u_long dwAdd, int iOffset )
+{
+ u_long dw;
+ u_long dwSum[2];
+ DCapsDef *scaps = &dev->usbDev.Caps;
+ HWDef *hw = &dev->usbDev.HwSetting;
+
+ if( dev->usbDev.pSource->DarkShadOrgY >= 0 ) {
+
+ u_short w;
+ int wtmp;
+
+ /* here we use the source buffer + a static offset */
+ for (dw = 0; dw < dwPixels; dw++, pSrce += dwAdd)
+ {
+#ifndef SWAP_FINE
+ wtmp = ((int)_PHILO2WORD(pSrce) + iOffset);
+#else
+ wtmp = ((int)_PLOHI2WORD(pSrce) + iOffset);
+#endif
+ if( wtmp < 0 )
+ wtmp = 0;
+
+ if( wtmp > 0xffff )
+ wtmp = 0xffff;
+
+ w = (u_short)wtmp;
+
+#ifndef SWAP_FINE
+ pwDest[dw] = _LOBYTE(w) * 256 + _HIBYTE(w);
+#else
+ pwDest[dw] = w;
+#endif
+ }
+ }
+ else
+ {
+ dwSum[0] = dwSum[1] = 0;
+ if( hw->bSensorConfiguration & 0x04 ) {
+
+ /* Even/Odd CCD */
+ for( dw = 0; dw < dwPixels; dw++, pSrce += dwAdd ) {
+#ifndef SWAP_FINE
+ dwSum[dw & 1] += (u_long)_PHILO2WORD(pSrce);
+#else
+ dwSum[dw & 1] += (u_long)_PLOHI2WORD(pSrce);
+#endif
+ }
+ dwSum[0] /= ((dwPixels + 1UL) >> 1);
+ dwSum[1] /= (dwPixels >> 1);
+
+ if( /*Registry.GetEvenOdd() == 1 ||*/ scaps->bPCB == 2)
+ {
+ dwSum[0] = dwSum[1] = (dwSum[0] + dwSum[1]) / 2;
+ }
+
+ dwSum[0] = (int)dwSum[0] + iOffset;
+ dwSum[1] = (int)dwSum[1] + iOffset;
+
+ if((int)dwSum[0] < 0)
+ dwSum[0] = 0;
+
+ if((int)dwSum[1] < 0)
+ dwSum[1] = 0;
+#ifndef SWAP_FINE
+ dwSum[0] = (u_long)_LOBYTE(_LOWORD(dwSum[0])) * 256UL +
+ _HIBYTE(_LOWORD(dwSum[0]));
+ dwSum[1] = (u_long)_LOBYTE(_LOWORD(dwSum[1])) * 256UL +
+ _HIBYTE(_LOWORD(dwSum[1]));
+#else
+ dwSum[0] = (u_long)_LOWORD(dwSum[0]);
+ dwSum[1] = (u_long)_LOWORD(dwSum[1]);
+#endif
+
+ for( dw = 0; dw < dwPixels; dw++ )
+ pwDest[dw] = (u_short)dwSum[dw & 1];
+ } else {
+
+ /* Standard CCD */
+
+ /* do some averaging on the line */
+ for( dw = 0; dw < dwPixels; dw++, pSrce += dwAdd ) {
+#ifndef SWAP_FINE
+ dwSum[0] += (u_long)_PHILO2WORD(pSrce);
+#else
+ dwSum[0] += (u_long)_PLOHI2WORD(pSrce);
+#endif
+ }
+
+ dwSum[0] /= dwPixels;
+
+ /* add our offset... */
+ dwSum[0] = (int)dwSum[0] + iOffset;
+ if((int)dwSum[0] < 0)
+ dwSum[0] = 0;
+#ifndef SWAP_FINE
+ dwSum[0] = (u_long)_LOBYTE(_LOWORD(dwSum[0])) * 256UL +
+ _HIBYTE(_LOWORD(dwSum[0]));
+#else
+ dwSum[0] = (u_long)_LOWORD(dwSum[0]);
+#endif
+
+ /* fill the shading data */
+ for( dw = 0; dw < dwPixels; dw++ )
+ pwDest[dw] = (u_short)dwSum[0];
+ }
+ }
+#ifdef SWAP_FINE
+ if(usb_HostSwap())
+ usb_Swap( pwDest, dwPixels *2 );
+#endif
+}
+
+/** usb_AdjustDarkShading
+ * fine calibration part 1 - read the black calibration area and write
+ * the black line data to the offset coefficient data in Merlins' DRAM
+ * If there's no black line available, we can use the min pixel value
+ * from coarse calibration...
+ */
+static SANE_Bool usb_AdjustDarkShading( Plustek_Device *dev )
+{
+ char tmp[40];
+ ScanDef *scanning = &dev->scanning;
+ DCapsDef *scaps = &dev->usbDev.Caps;
+ HWDef *hw = &dev->usbDev.HwSetting;
+ u_long *scanbuf = scanning->pScanBuffer;
+ u_char *regs = dev->usbDev.a_bRegs;
+
+ if( usb_IsEscPressed())
+ return SANE_FALSE;
+
+ if( scaps->workaroundFlag & _WAF_SKIP_FINE )
+ return SANE_TRUE;
+
+ DBG( _DBG_INFO, "#########################\n" );
+ DBG( _DBG_INFO, "usb_AdjustDarkShading()\n" );
+ DBG( _DBG_INFO2, "* MCLK = %f (scanparam-MCLK=%f)\n",
+ dMCLK, scanning->sParam.dMCLK );
+
+ usb_PrepareFineCal( dev, &m_ScanParam, 0 );
+
+ m_ScanParam.Size.dwLines = 1; /* for gain */
+ m_ScanParam.bCalibration = PARAM_DarkShading;
+
+ if( _LM9831 == hw->chip ) {
+
+ m_ScanParam.UserDpi.x = usb_SetAsicDpiX( dev, m_ScanParam.UserDpi.x);
+ if( m_ScanParam.UserDpi.x < 100)
+ m_ScanParam.UserDpi.x = 150;
+
+ /* Now DPI X is physical */
+ m_ScanParam.Origin.x = m_ScanParam.Origin.x %
+ (u_short)m_dHDPIDivider;
+ m_ScanParam.Size.dwPixels = (u_long)scaps->Normal.Size.x *
+ m_ScanParam.UserDpi.x / 300UL;
+ m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels *
+ 2UL * m_ScanParam.bChannels;
+ m_dwPixels = scanning->sParam.Size.dwPixels *
+ m_ScanParam.UserDpi.x / scanning->sParam.UserDpi.x;
+
+ if( usb_IsCISDevice(dev) && m_ScanParam.bDataType == SCANDATATYPE_Color )
+ m_ScanParam.Size.dwBytes *= 3;
+ }
+
+ /* if we have dark shading strip, there's no need to switch
+ * the lamp off
+ */
+ if( dev->usbDev.pSource->DarkShadOrgY >= 0 ) {
+
+ usb_ModuleToHome( dev, SANE_TRUE );
+ usb_ModuleMove ( dev, MOVE_Forward,
+ (u_long)dev->usbDev.pSource->DarkShadOrgY );
+ } else {
+
+ /* switch lamp off to read dark data... */
+ regs[0x29] = 0;
+ usb_switchLamp( dev, SANE_FALSE );
+ }
+
+ usb_SetScanParameters( dev, &m_ScanParam );
+
+ if((!usb_ScanBegin(dev, SANE_FALSE)) ||
+ (!usb_ScanReadImage(dev,scanbuf, m_ScanParam.Size.dwPhyBytes)) ||
+ (!usb_ScanEnd( dev ))) {
+
+ /* on error, reset the lamp settings*/
+ regs[0x29] = hw->bReg_0x29;
+ usb_switchLamp( dev, SANE_TRUE );
+ usbio_WriteReg( dev->fd, 0x29, regs[0x29] );
+
+ DBG( _DBG_ERROR, "usb_AdjustDarkShading() failed\n" );
+ return SANE_FALSE;
+ }
+
+ /* set illumination mode and switch lamp on again
+ */
+ regs[0x29] = hw->bReg_0x29;
+ usb_switchLamp( dev, SANE_TRUE );
+
+ if( !usbio_WriteReg( dev->fd, 0x29, regs[0x29])) {
+ DBG( _DBG_ERROR, "usb_AdjustDarkShading() failed\n" );
+ return SANE_FALSE;
+ }
+
+#ifdef SWAP_FINE
+ if(usb_HostSwap())
+ usb_Swap((u_short *)scanbuf, m_ScanParam.Size.dwPhyBytes );
+#endif
+
+ sprintf( tmp, "fine-black.raw" );
+
+ dumpPicInit(&m_ScanParam, tmp);
+ dumpPic(tmp, (u_char*)scanbuf, m_ScanParam.Size.dwPhyBytes, 0);
+
+ usleep(500 * 1000); /* Warm up lamp again */
+
+ if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
+
+ if( usb_IsCISDevice(dev)) {
+
+ usb_GetDarkShading( dev, a_wDarkShading, (HiLoDef*)scanbuf,
+ m_ScanParam.Size.dwPhyPixels, 1,
+ scanning->sParam.swOffset[0]);
+
+ usb_GetDarkShading( dev, a_wDarkShading + m_ScanParam.Size.dwPhyPixels,
+ (HiLoDef*)scanbuf + m_ScanParam.Size.dwPhyPixels,
+ m_ScanParam.Size.dwPhyPixels, 1, scanning->sParam.swOffset[1]);
+
+ usb_GetDarkShading( dev, a_wDarkShading + m_ScanParam.Size.dwPhyPixels * 2,
+ (HiLoDef*)scanbuf + m_ScanParam.Size.dwPhyPixels * 2,
+ m_ScanParam.Size.dwPhyPixels, 1, scanning->sParam.swOffset[2]);
+
+ } else {
+
+ usb_GetDarkShading( dev, a_wDarkShading, (HiLoDef*)scanbuf,
+ m_ScanParam.Size.dwPhyPixels, 3,
+ scanning->sParam.swOffset[0]);
+ usb_GetDarkShading( dev, a_wDarkShading + m_ScanParam.Size.dwPhyPixels,
+ (HiLoDef*)scanbuf + 1, m_ScanParam.Size.dwPhyPixels,
+ 3, scanning->sParam.swOffset[1]);
+ usb_GetDarkShading( dev, a_wDarkShading + m_ScanParam.Size.dwPhyPixels * 2,
+ (HiLoDef*)scanbuf + 2, m_ScanParam.Size.dwPhyPixels,
+ 3, scanning->sParam.swOffset[2]);
+ }
+ } else {
+
+ usb_GetDarkShading( dev, a_wDarkShading, (HiLoDef*)scanbuf,
+ m_ScanParam.Size.dwPhyPixels, 1,
+ scanning->sParam.swOffset[1]);
+
+ memcpy( a_wDarkShading + m_ScanParam.Size.dwPhyPixels,
+ a_wDarkShading, m_ScanParam.Size.dwPhyPixels * 2 );
+ memcpy( a_wDarkShading + m_ScanParam.Size.dwPhyPixels * 2,
+ a_wDarkShading, m_ScanParam.Size.dwPhyPixels * 2 );
+ }
+
+ regs[0x45] |= 0x10;
+
+ usb_line_statistics( "Dark", a_wDarkShading, m_ScanParam.Size.dwPhyPixels,
+ scanning->sParam.bDataType == SCANDATATYPE_Color?1:0);
+ return SANE_TRUE;
+}
+
+/** function to remove the brightest values out of each row
+ * @param dev - the almighty device structure.
+ * @param sp - is a pointer to the scanparam structure used for
+ * scanning the shading lines.
+ * @param hilight - defines the number of values to skip.
+ * @param shading_lines - defines the overall number of shading lines.
+ */
+static void usb_CalSortHighlight( Plustek_Device *dev, ScanParam *sp,
+ u_long hilight, u_long shading_lines )
+{
+ ScanDef *scan = &dev->scanning;
+ u_short r, g, b;
+ u_long lines, w, x;
+ RGBUShortDef *pw, *rgb;
+
+ if( hilight == 0 )
+ return;
+
+ rgb = (RGBUShortDef*)scan->pScanBuffer;
+
+ /* do it for all relevant lines */
+ for( lines = hilight, rgb = rgb + sp->Size.dwPhyPixels * lines;
+ lines < shading_lines; lines++, rgb += sp->Size.dwPhyPixels ) {
+
+ /* scan the complete line */
+ for( x = 0; x < sp->Size.dwPhyPixels; x++ ) {
+
+ /* reference is the first scanline */
+ pw = (RGBUShortDef*)scan->pScanBuffer;
+ r = rgb[x].Red;
+ g = rgb[x].Green;
+ b = rgb[x].Blue;
+
+ for( w = 0; w < hilight; w++, pw += sp->Size.dwPhyPixels ) {
+
+ if( r > pw[x].Red )
+ _SWAP( r, pw[x].Red );
+
+ if( g > pw[x].Green )
+ _SWAP( g, pw[x].Green );
+
+ if( b > pw[x].Blue )
+ _SWAP( b, pw[x].Blue );
+ }
+ rgb[x].Red = r;
+ rgb[x].Green = g;
+ rgb[x].Blue = b;
+ }
+ }
+}
+
+/** function to remove the brightest values out of each row
+ * @param dev - the almighty device structure.
+ * @param sp - is a pointer to the scanparam structure used for
+ * scanning the shading lines.
+ * @param hilight - defines the number of values to skip.
+ * @param shading_lines - defines the overall number of shading lines.
+ */
+static void usb_CalSortShadow( Plustek_Device *dev, ScanParam *sp,
+ u_long hilight, u_long shadow, u_long shading_lines )
+{
+ ScanDef *scan = &dev->scanning;
+ u_short r, g, b;
+ u_long lines, w, x;
+ RGBUShortDef *pw, *rgb;
+
+ if( shadow == 0 )
+ return;
+
+ rgb = (RGBUShortDef*)scan->pScanBuffer;
+
+ for( lines = hilight, rgb = rgb + sp->Size.dwPhyPixels * lines;
+ lines < shading_lines-shadow; lines++, rgb += sp->Size.dwPhyPixels ) {
+
+ for (x = 0; x < sp->Size.dwPhyPixels; x++) {
+
+ pw = ((RGBUShortDef*)scan->pScanBuffer) + (shading_lines - shadow) *
+ sp->Size.dwPhyPixels;
+ r = rgb[x].Red;
+ g = rgb[x].Green;
+ b = rgb[x].Blue;
+
+ for( w = 0; w < shadow; w++, pw += sp->Size.dwPhyPixels ) {
+ if( r < pw[x].Red )
+ _SWAP( r, pw[x].Red );
+ if( g < pw[x].Green )
+ _SWAP( g, pw [x].Green );
+ if( b > pw[x].Blue )
+ _SWAP( b, pw[x].Blue );
+ }
+ rgb[x].Red = r;
+ rgb[x].Green = g;
+ rgb[x].Blue = b;
+ }
+ }
+}
+
+static void usb_procHighlightAndShadow( Plustek_Device *dev, ScanParam *sp,
+ u_long hilight, u_long shadow, u_long shading_lines )
+{
+ ScanDef *scan = &dev->scanning;
+ u_long lines, x;
+ u_long *pr, *pg, *pb;
+ RGBUShortDef *rgb;
+
+ pr = (u_long*)((u_char*)scan->pScanBuffer + sp->Size.dwPhyBytes * shading_lines);
+ pg = pr + sp->Size.dwPhyPixels;
+ pb = pg + sp->Size.dwPhyPixels;
+
+ memset(pr, 0, sp->Size.dwPhyPixels * 4UL * 3UL);
+
+ /* Sort hilight */
+ usb_CalSortHighlight(dev, sp, hilight, shading_lines);
+
+ /* Sort shadow */
+ usb_CalSortShadow(dev, sp, hilight, shadow, shading_lines);
+
+ rgb = (RGBUShortDef*)scan->pScanBuffer;
+ rgb += sp->Size.dwPhyPixels * hilight;
+
+ /* Sum */
+ for( lines = hilight; lines < (shading_lines-shadow); lines++ ) {
+
+ for( x = 0; x < sp->Size.dwPhyPixels; x++ ) {
+ pr[x] += rgb[x].Red;
+ pg[x] += rgb[x].Green;
+ pb[x] += rgb[x].Blue;
+ }
+
+ rgb += sp->Size.dwPhyPixels;
+ }
+}
+
+/** usb_AdjustWhiteShading
+ * fine calibration part 2 - read the white calibration area and calculate
+ * the gain coefficient for each pixel
+ */
+static SANE_Bool usb_AdjustWhiteShading( Plustek_Device *dev )
+{
+ char tmp[40];
+ ScanDef *scan = &dev->scanning;
+ DCapsDef *scaps = &dev->usbDev.Caps;
+ HWDef *hw = &dev->usbDev.HwSetting;
+ u_long *pBuf = scan->pScanBuffer;
+ u_long dw, dwLines, dwRead;
+ u_long shading_lines;
+ MonoWordDef *pValue;
+ u_short *m_pAvMono;
+ u_long *pdw, *m_pSum;
+ u_short hilight, shadow;
+ int i;
+ SANE_Bool swap = usb_HostSwap();
+
+ if( scaps->workaroundFlag & _WAF_SKIP_FINE )
+ return SANE_TRUE;
+
+ DBG( _DBG_INFO, "#########################\n" );
+ DBG( _DBG_INFO, "usb_AdjustWhiteShading()\n" );
+
+ m_pAvMono = (u_short*)scan->pScanBuffer;
+
+ if( usb_IsEscPressed())
+ return SANE_FALSE;
+
+ usb_PrepareFineCal( dev, &m_ScanParam, 0 );
+
+ if( m_ScanParam.PhyDpi.x > 75)
+ shading_lines = 64;
+ else
+ shading_lines = 32;
+
+ /* NOTE: hilight + shadow < shading_lines */
+ hilight = 4;
+ shadow = 4;
+
+ m_ScanParam.bCalibration = PARAM_WhiteShading;
+ m_ScanParam.Size.dwLines = shading_lines;
+
+ if( _LM9831 == hw->chip ) {
+
+ m_ScanParam.UserDpi.x = usb_SetAsicDpiX( dev, m_ScanParam.UserDpi.x);
+ if( m_ScanParam.UserDpi.x < 100 )
+ m_ScanParam.UserDpi.x = 150;
+
+ /* Now DPI X is physical */
+ m_ScanParam.Origin.x = m_ScanParam.Origin.x % (u_short)m_dHDPIDivider;
+ m_ScanParam.Size.dwPixels = (u_long)scaps->Normal.Size.x * m_ScanParam.UserDpi.x / 300UL;
+ m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels * 2UL * m_ScanParam.bChannels;
+ if( usb_IsCISDevice(dev) && m_ScanParam.bDataType == SCANDATATYPE_Color )
+ m_ScanParam.Size.dwBytes *= 3;
+
+ m_dwPixels = scan->sParam.Size.dwPixels * m_ScanParam.UserDpi.x /
+ scan->sParam.UserDpi.x;
+
+ dw = (u_long)(hw->wDRAMSize - 196 /*192 KiB*/) * 1024UL;
+ for( dwLines = dw / m_ScanParam.Size.dwBytes;
+ dwLines < m_ScanParam.Size.dwLines; m_ScanParam.Size.dwLines>>=1);
+ }
+
+ /* goto the correct position again... */
+ if( dev->usbDev.pSource->DarkShadOrgY >= 0 ) {
+
+ usb_ModuleToHome( dev, SANE_TRUE );
+ usb_ModuleMove ( dev, MOVE_Forward,
+ (u_long)dev->usbDev.pSource->ShadingOriginY );
+ }
+
+ sprintf( tmp, "fine-white.raw" );
+ DBG( _DBG_INFO2, "FINE WHITE Calibration Strip: %s\n", tmp );
+ DBG( _DBG_INFO2, "Shad.-Lines = %lu\n", shading_lines );
+ DBG( _DBG_INFO2, "Lines = %lu\n", m_ScanParam.Size.dwLines );
+ DBG( _DBG_INFO2, "Pixels = %lu\n", m_ScanParam.Size.dwPixels );
+ DBG( _DBG_INFO2, "Bytes = %lu\n", m_ScanParam.Size.dwBytes );
+ DBG( _DBG_INFO2, "Origin.X = %u\n", m_ScanParam.Origin.x );
+
+ for( dw = shading_lines, dwRead = 0; dw; dw -= m_ScanParam.Size.dwLines ) {
+
+ if( usb_SetScanParameters( dev, &m_ScanParam ) &&
+ usb_ScanBegin( dev, SANE_FALSE )) {
+
+ DBG(_DBG_INFO2,"TotalBytes = %lu\n",m_ScanParam.Size.dwTotalBytes);
+ if( _LM9831 == hw->chip ) {
+ /* Delay for white shading hold for 9831-1200 scanner */
+ usleep(900000);
+ }
+
+ if( usb_ScanReadImage( dev, (u_char*)pBuf + dwRead,
+ m_ScanParam.Size.dwTotalBytes)) {
+
+ if( _LM9831 == hw->chip ) {
+ /* Delay for white shading hold for 9831-1200 scanner */
+ usleep(10000);
+ }
+
+ if( 0 == dwRead ) {
+ dumpPicInit(&m_ScanParam, tmp);
+ }
+
+ dumpPic(tmp, (u_char*)pBuf + dwRead, m_ScanParam.Size.dwTotalBytes, 0);
+
+ if( usb_ScanEnd( dev )) {
+ dwRead += m_ScanParam.Size.dwTotalBytes;
+ continue;
+ }
+ }
+ }
+
+ DBG( _DBG_ERROR, "usb_AdjustWhiteShading() failed\n" );
+ return SANE_FALSE;
+ }
+
+ m_pSum = (u_long*)((u_char*)pBuf + m_ScanParam.Size.dwPhyBytes * shading_lines);
+
+ /*
+ * do some reordering on CIS based devices:
+ * from RRRRRRR.... GGGGGGGG.... BBBBBBBBB, create RGB RGB RGB ...
+ * to use the following code, originally written for CCD devices...
+ */
+ if( usb_IsCISDevice(dev)) {
+
+ u_short *dest, *src;
+ u_long dww;
+
+ src = (u_short*)pBuf;
+
+ DBG( _DBG_INFO2, "PhyBytes = %lu\n", m_ScanParam.Size.dwPhyBytes );
+ DBG( _DBG_INFO2, "PhyPixels = %lu\n", m_ScanParam.Size.dwPhyPixels );
+ DBG( _DBG_INFO2, "Pixels = %lu\n", m_ScanParam.Size.dwPixels );
+ DBG( _DBG_INFO2, "Bytes = %lu\n", m_ScanParam.Size.dwBytes );
+ DBG( _DBG_INFO2, "Channels = %u\n", m_ScanParam.bChannels );
+
+ for( dwLines = shading_lines; dwLines; dwLines-- ) {
+
+ dest = a_wWhiteShading;
+
+ for( dw=dww=0; dw < m_ScanParam.Size.dwPhyPixels; dw++, dww+=3 ) {
+
+ dest[dww] = src[dw];
+ dest[dww + 1] = src[m_ScanParam.Size.dwPhyPixels + dw];
+ dest[dww + 2] = src[m_ScanParam.Size.dwPhyPixels * 2 + dw];
+ }
+
+ /* copy line back ... */
+ memcpy( src, dest, m_ScanParam.Size.dwPhyPixels * 3 * 2 );
+ src = &src[m_ScanParam.Size.dwPhyPixels * 3];
+ }
+
+ m_ScanParam.bChannels = 3;
+ }
+
+ if( _LM9831 == hw->chip ) {
+
+ u_short *pwDest = (u_short*)pBuf;
+ HiLoDef *pwSrce = (HiLoDef*)pBuf;
+
+ pwSrce += ((u_long)(scan->sParam.Origin.x-m_ScanParam.Origin.x) /
+ (u_short)m_dHDPIDivider) *
+ (scaps->OpticDpi.x / 300UL) * m_ScanParam.bChannels;
+
+ for( dwLines = shading_lines; dwLines; dwLines--) {
+
+#ifdef SWAP_FINE
+ if(usb_HostSwap()) {
+#endif
+ for( dw = 0; dw < m_dwPixels * m_ScanParam.bChannels; dw++ )
+ pwDest[dw] = _HILO2WORD(pwSrce[dw]);
+#ifdef SWAP_FINE
+ } else {
+ for( dw = 0; dw < m_dwPixels * m_ScanParam.bChannels; dw++ )
+ pwDest[dw] = _LOHI2WORD(pwSrce[dw]);
+ }
+#endif
+ pwDest += (u_long)m_dwPixels * m_ScanParam.bChannels;
+ pwSrce = (HiLoDef*)((u_char*)pwSrce + m_ScanParam.Size.dwPhyBytes);
+ }
+
+ _SWAP(m_ScanParam.Size.dwPhyPixels, m_dwPixels);
+ } else {
+ /* Discard the status word and conv. the hi-lo order to intel format */
+ u_short *pwDest = (u_short*)pBuf;
+ HiLoDef *pwSrce = (HiLoDef*)pBuf;
+
+ for( dwLines = shading_lines; dwLines; dwLines-- ) {
+
+#ifdef SWAP_FINE
+ if(usb_HostSwap()) {
+#endif
+ for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels *
+ m_ScanParam.bChannels; dw++) {
+ pwDest[dw] = _HILO2WORD(pwSrce[dw]);
+ }
+#ifdef SWAP_FINE
+ } else {
+ for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels *
+ m_ScanParam.bChannels; dw++) {
+ pwDest[dw] = _LOHI2WORD(pwSrce[dw]);
+ }
+ }
+#endif
+ pwDest += m_ScanParam.Size.dwPhyPixels * m_ScanParam.bChannels;
+ pwSrce = (HiLoDef*)((u_char*)pwSrce + m_ScanParam.Size.dwPhyBytes);
+ }
+ }
+
+ if( scan->sParam.bDataType == SCANDATATYPE_Color ) {
+
+ usb_procHighlightAndShadow(dev, &m_ScanParam, hilight, shadow, shading_lines);
+
+ pValue = (MonoWordDef*)a_wWhiteShading;
+ pdw = (u_long*)m_pSum;
+
+ /* Software gain */
+ if( scan->sParam.bSource != SOURCE_Negative ) {
+
+ for( i = 0; i < 3; i++ ) {
+
+ for(dw=m_ScanParam.Size.dwPhyPixels; dw; dw--,pValue++,pdw++) {
+
+ *pdw = *pdw * 1000 / ((shading_lines - hilight - shadow) *
+ scan->sParam.swGain[i]);
+ if(*pdw > 65535U)
+ pValue->Mono = 65535U;
+ else
+ pValue->Mono = (u_short)*pdw;
+
+ if (pValue->Mono > 16384U)
+ pValue->Mono = (u_short)(GAIN_Target * 16384U / pValue->Mono);
+ else
+ pValue->Mono = GAIN_Target;
+
+#ifdef SWAP_FINE
+ if( swap )
+#endif
+ _SWAP(pValue->HiLo.bHi, pValue->HiLo.bLo);
+ }
+ }
+ } else {
+ for( dw = m_ScanParam.Size.dwPhyPixels*3; dw; dw--,pValue++,pdw++)
+ pValue->Mono=(u_short)(*pdw/(shading_lines-hilight-shadow));
+
+ /* swapping will be done later in usb_ResizeWhiteShading() */
+ }
+ } else {
+
+ /* gray mode */
+ u_short *pwAv, *pw;
+ u_short w, wV;
+
+ memset( m_pSum, 0, m_ScanParam.Size.dwPhyPixels << 2 );
+ if( hilight ) {
+ for( dwLines = hilight,
+ pwAv = m_pAvMono + m_ScanParam.Size.dwPhyPixels * dwLines;
+ dwLines < shading_lines;
+ dwLines++, pwAv += m_ScanParam.Size.dwPhyPixels) {
+
+ for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++ ) {
+
+ pw = m_pAvMono;
+ wV = pwAv [dw];
+ for( w = 0; w < hilight; w++,
+ pw += m_ScanParam.Size.dwPhyPixels ) {
+ if( wV > pw[dw] )
+ _SWAP( wV, pw[dw] );
+ }
+ pwAv[dw] = wV;
+ }
+ }
+ }
+
+ /* Sort shadow */
+ if (shadow) {
+ for (dwLines = hilight, pwAv = m_pAvMono + m_ScanParam.Size.dwPhyPixels * dwLines;
+ dwLines < (shading_lines - shadow); dwLines++, pwAv += m_ScanParam.Size.dwPhyPixels)
+ for (dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++)
+ {
+ pw = m_pAvMono + (shading_lines - shadow) * m_ScanParam.Size.dwPhyPixels;
+ wV = pwAv [dw];
+ for (w = 0; w < shadow; w++, pw += m_ScanParam.Size.dwPhyPixels)
+ if (wV < pw [dw])
+ _SWAP (wV, pw[dw]);
+ pwAv [dw] = wV;
+ }
+ }
+
+ /* Sum */
+ pdw = (u_long*)m_pSum;
+
+ for (dwLines = hilight,
+ pwAv = m_pAvMono + m_ScanParam.Size.dwPhyPixels * dwLines;
+ dwLines < (shading_lines - shadow);
+ dwLines++, pwAv += m_ScanParam.Size.dwPhyPixels) {
+ for (dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++)
+ pdw[dw] += pwAv[dw];
+ }
+
+ /* Software gain */
+ pValue = (MonoWordDef*)a_wWhiteShading;
+ if( scan->sParam.bSource != SOURCE_Negative ) {
+
+ for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++) {
+
+ pdw[dw] = pdw[dw] * 1000 /((shading_lines-hilight-shadow) *
+ scan->sParam.swGain[1]);
+ if( pdw[dw] > 65535U )
+ pValue[dw].Mono = 65535;
+ else
+ pValue[dw].Mono = (u_short)pdw[dw];
+
+ if( pValue[dw].Mono > 16384U ) {
+ pValue[dw].Mono = (u_short)(GAIN_Target * 16384U / pValue[dw].Mono);
+ } else {
+ pValue[dw].Mono = GAIN_Target;
+ }
+
+#ifdef SWAP_FINE
+ if( swap )
+#endif
+ _SWAP(pValue[dw].HiLo.bHi, pValue[dw].HiLo.bLo);
+ }
+
+ } else{
+
+ for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++ ) {
+ pValue[dw].Mono = (u_short)(pdw[dw] /
+ (shading_lines - hilight - shadow));
+
+ /* swapping will be done later in usb_ResizeWhiteShading() */
+ }
+ }
+ }
+
+ usb_SaveCalSetShading( dev, &m_ScanParam );
+
+ if( scan->sParam.bSource != SOURCE_Negative ) {
+ usb_line_statistics( "White", a_wWhiteShading, m_ScanParam.Size.dwPhyPixels,
+ scan->sParam.bDataType == SCANDATATYPE_Color?1:0);
+ }
+ return SANE_TRUE;
+}
+
+/** for negative film only
+ * we need to resize the gain to obtain bright white...
+ */
+static void usb_ResizeWhiteShading( double dAmp, u_short *pwShading, int iGain )
+{
+ u_long dw, dwAmp;
+ u_short w;
+
+ DBG( _DBG_INFO2, "ResizeWhiteShading: dAmp=%.3f, iGain=%i\n", dAmp, iGain );
+
+ for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++ ) {
+
+ dwAmp = (u_long)(GAIN_Target * 0x4000 /
+ (pwShading[dw] + 1) * dAmp) * iGain / 1000;
+
+ if( dwAmp <= GAIN_Target)
+ w = (u_short)dwAmp;
+ else
+ w = GAIN_Target;
+
+#ifndef SWAP_FINE
+ pwShading[dw] = (u_short)_LOBYTE(w) * 256 + _HIBYTE(w);
+#else
+ pwShading[dw] = w;
+#endif
+ }
+
+#ifdef SWAP_FINE
+ if( usb_HostSwap())
+ usb_Swap( pwShading, m_ScanParam.Size.dwPhyPixels );
+#endif
+}
+
+/** do the base settings for calibration scans
+ */
+static void
+usb_PrepareCalibration( Plustek_Device *dev )
+{
+ ScanDef *scan = &dev->scanning;
+ DCapsDef *scaps = &dev->usbDev.Caps;
+ u_char *regs = dev->usbDev.a_bRegs;
+
+ usb_GetSWOffsetGain( dev );
+
+ memset( &m_ScanParam, 0, sizeof(ScanParam));
+
+ m_ScanParam.UserDpi = scaps->OpticDpi;
+ m_ScanParam.PhyDpi = scaps->OpticDpi;
+ m_ScanParam.bChannels = scan->sParam.bChannels;
+ m_ScanParam.bBitDepth = 16;
+ m_ScanParam.bSource = scan->sParam.bSource;
+ m_ScanParam.Origin.y = 0;
+
+ if( scan->sParam.bDataType == SCANDATATYPE_Color )
+ m_ScanParam.bDataType = SCANDATATYPE_Color;
+ else
+ m_ScanParam.bDataType = SCANDATATYPE_Gray;
+
+ usb_SetMCLK( dev, &m_ScanParam );
+
+ /* preset these registers offset/gain */
+ regs[0x38] = regs[0x39] = regs[0x3a] = 0;
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+ regs[0x45] &= ~0x10;
+
+ memset( a_wWhiteShading, 0, _SHADING_BUF );
+ memset( a_wDarkShading, 0, _SHADING_BUF );
+
+ scan->skipCoarseCalib = SANE_FALSE;
+
+ if( dev->adj.cacheCalData )
+ if( usb_ReadAndSetCalData( dev ))
+ scan->skipCoarseCalib = SANE_TRUE;
+
+ /* as sheet-fed device we use the cached values, or
+ * perform the calibration upon request
+ */
+ if( usb_IsSheetFedDevice(dev)) {
+ if( !scan->skipCoarseCalib && !usb_InCalibrationMode(dev)) {
+
+ DBG(_DBG_INFO2,"SHEET-FED device, skip coarse calibration!\n");
+ scan->skipCoarseCalib = SANE_TRUE;
+
+ regs[0x3b] = 0x0a;
+ regs[0x3c] = 0x0a;
+ regs[0x3d] = 0x0a;
+
+ /* use frontend values... */
+ if((dev->adj.rofs != -1) &&
+ (dev->adj.gofs != -1) && (dev->adj.bofs != -1)) {
+ regs[0x38] = (dev->adj.rofs & 0x3f);
+ regs[0x39] = (dev->adj.gofs & 0x3f);
+ regs[0x3a] = (dev->adj.bofs & 0x3f);
+ }
+
+ if((dev->adj.rgain != -1) &&
+ (dev->adj.ggain != -1) && (dev->adj.bgain != -1)) {
+ setAdjGain( dev->adj.rgain, &regs[0x3b] );
+ setAdjGain( dev->adj.ggain, &regs[0x3c] );
+ setAdjGain( dev->adj.bgain, &regs[0x3d] );
+ }
+ }
+ }
+}
+
+/**
+ */
+static SANE_Bool
+usb_SpeedTest( Plustek_Device *dev )
+{
+ int i;
+ double s, e, r, tr;
+ struct timeval start, end;
+ DCapsDef *scaps = &dev->usbDev.Caps;
+ HWDef *hw = &dev->usbDev.HwSetting;
+ u_char *regs = dev->usbDev.a_bRegs;
+ u_long *scanbuf = dev->scanning.pScanBuffer;
+
+ if( usb_IsEscPressed())
+ return SANE_FALSE;
+
+ bMaxITA = 0xff;
+
+ DBG( 1, "#########################\n" );
+ DBG( 1, "usb_SpeedTest(%d,%lu)\n", dev->initialized, dev->transferRate );
+ if( dev->transferRate != DEFAULT_RATE ) {
+ DBG( 1, "* skipped, using already detected speed: %lu Bytes/s\n",
+ dev->transferRate );
+ return SANE_TRUE;
+ }
+
+ usb_PrepareCalibration( dev );
+ regs[0x38] = regs[0x39] = regs[0x3a] = 0;
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+
+ /* define the strip to scan for warming up the lamp, in the end
+ * we always scan the full line, even for TPA
+ */
+ m_ScanParam.bDataType = SCANDATATYPE_Color;
+ m_ScanParam.bCalibration = PARAM_Gain;
+ m_ScanParam.dMCLK = dMCLK;
+ m_ScanParam.bBitDepth = 8;
+ m_ScanParam.Size.dwLines = 1;
+ m_ScanParam.Size.dwPixels = scaps->Normal.Size.x *
+ scaps->OpticDpi.x / 300UL;
+ m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels *
+ 2 * m_ScanParam.bChannels;
+
+ if( usb_IsCISDevice(dev))
+ m_ScanParam.Size.dwBytes *= 3;
+
+ m_ScanParam.Origin.x = (u_short)((u_long) hw->wActivePixelsStart *
+ 300UL / scaps->OpticDpi.x);
+ r = 0.0;
+ dev->transferRate = 2000000;
+
+ for( i = 0; i < _TLOOPS ; i++ ) {
+
+ if( !usb_SetScanParameters( dev, &m_ScanParam ))
+ return SANE_FALSE;
+
+ if( !usb_ScanBegin( dev, SANE_FALSE )) {
+ DBG( _DBG_ERROR, "usb_SpeedTest() failed\n" );
+ return SANE_FALSE;
+ }
+ if (!usb_IsDataAvailableInDRAM( dev ))
+ return SANE_FALSE;
+
+ m_fFirst = SANE_FALSE;
+ gettimeofday( &start, NULL );
+ usb_ScanReadImage( dev, scanbuf, m_ScanParam.Size.dwPhyBytes );
+ gettimeofday( &end, NULL );
+ usb_ScanEnd( dev );
+ s = (double)start.tv_sec * 1000000.0 + (double)start.tv_usec;
+ e = (double)end.tv_sec * 1000000.0 + (double)end.tv_usec;
+
+ if( e > s )
+ r += (e - s);
+ else
+ r += (s - e);
+ }
+
+ tr = ((double)m_ScanParam.Size.dwPhyBytes * _TLOOPS * 1000000.0)/r;
+ dev->transferRate = (u_long)tr;
+ DBG( 1, "usb_SpeedTest() done - %u loops, %.4fus --> %.4f B/s, %lu\n",
+ _TLOOPS, r, tr, dev->transferRate );
+ return SANE_TRUE;
+}
+
+/** read the white calibration strip until the lamp seems to be stable
+ * the timed warmup will be used, when the warmup time is set to -1
+ */
+static SANE_Bool
+usb_AutoWarmup( Plustek_Device *dev )
+{
+ int i, stable_count;
+ ScanDef *scanning = &dev->scanning;
+ DCapsDef *scaps = &dev->usbDev.Caps;
+ HWDef *hw = &dev->usbDev.HwSetting;
+ u_long *scanbuf = scanning->pScanBuffer;
+ u_char *regs = dev->usbDev.a_bRegs;
+ u_long dw, start, end, len;
+ u_long curR, curG, curB;
+ u_long lastR, lastG, lastB;
+ long diffR, diffG, diffB;
+ long thresh = _AUTO_THRESH;
+
+ if( usb_IsEscPressed())
+ return SANE_FALSE;
+
+ bMaxITA = 0xff;
+
+ DBG( _DBG_INFO, "#########################\n" );
+ DBG( _DBG_INFO, "usb_AutoWarmup()\n" );
+
+ if( usb_IsCISDevice(dev)) {
+ DBG( _DBG_INFO, "- function skipped, CIS device!\n" );
+ return SANE_TRUE;
+ }
+
+ if( dev->adj.warmup >= 0 ) {
+ DBG( _DBG_INFO, "- using timed warmup: %ds\n", dev->adj.warmup );
+ if( !usb_Wait4Warmup( dev )) {
+ DBG( _DBG_ERROR, "- CANCEL detected\n" );
+ return SANE_FALSE;
+ }
+ return SANE_TRUE;
+ }
+
+ usb_PrepareCalibration( dev );
+ regs[0x38] = regs[0x39] = regs[0x3a] = 0;
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+
+ /* define the strip to scan for warming up the lamp, in the end
+ * we always scan the full line, even for TPA
+ */
+ m_ScanParam.bDataType = SCANDATATYPE_Color;
+ m_ScanParam.bCalibration = PARAM_Gain;
+ m_ScanParam.dMCLK = dMCLK;
+ m_ScanParam.Size.dwLines = 1;
+ m_ScanParam.Size.dwPixels = scaps->Normal.Size.x *
+ scaps->OpticDpi.x / 300UL;
+ m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels *
+ 2 * m_ScanParam.bChannels;
+
+ if( usb_IsCISDevice(dev))
+ m_ScanParam.Size.dwBytes *= 3;
+
+ m_ScanParam.Origin.x = (u_short)((u_long) hw->wActivePixelsStart *
+ 300UL / scaps->OpticDpi.x);
+
+ stable_count = 0;
+ start = 500;
+ len = m_ScanParam.Size.dwPixels;
+
+ if( scanning->sParam.bSource == SOURCE_Transparency ) {
+ start = scaps->Positive.DataOrigin.x * scaps->OpticDpi.x / 300UL;
+ len = scaps->Positive.Size.x * scaps->OpticDpi.x / 300UL;
+ thresh = _AUTO_TPA_THRESH;
+ }
+ else if( scanning->sParam.bSource == SOURCE_Negative ) {
+ start = scaps->Negative.DataOrigin.x * scaps->OpticDpi.x / 300UL;
+ len = scaps->Negative.Size.x * scaps->OpticDpi.x / 300UL;
+ thresh = _AUTO_TPA_THRESH;
+ }
+ end = start + len;
+ DBG( _DBG_INFO2, "Start=%lu, End=%lu, Len=%lu, Thresh=%li\n",
+ start, end, len, thresh );
+
+ lastR = lastG = lastB = 0;
+ for( i = 0; i < _MAX_AUTO_WARMUP + 1 ; i++ ) {
+
+ if( !usb_SetScanParameters( dev, &m_ScanParam ))
+ return SANE_FALSE;
+
+ if( !usb_ScanBegin( dev, SANE_FALSE ) ||
+ !usb_ScanReadImage( dev, scanbuf, m_ScanParam.Size.dwPhyBytes ) ||
+ !usb_ScanEnd( dev )) {
+ DBG( _DBG_ERROR, "usb_AutoWarmup() failed\n" );
+ return SANE_FALSE;
+ }
+
+#ifdef SWAP_COARSE
+ if(usb_HostSwap())
+#endif
+ usb_Swap((u_short *)scanbuf, m_ScanParam.Size.dwPhyBytes );
+
+ if( end > m_ScanParam.Size.dwPhyPixels )
+ end = m_ScanParam.Size.dwPhyPixels;
+
+ curR = curG = curB = 0;
+ for( dw = start; dw < end; dw++ ) {
+
+ if( usb_IsCISDevice(dev)) {
+ curR += ((u_short*)scanbuf)[dw];
+ curG += ((u_short*)scanbuf)[dw+m_ScanParam.Size.dwPhyPixels+1];
+ curB += ((u_short*)scanbuf)[dw+(m_ScanParam.Size.dwPhyPixels+1)*2];
+ } else {
+ curR += ((RGBUShortDef*)scanbuf)[dw].Red;
+ curG += ((RGBUShortDef*)scanbuf)[dw].Green;
+ curB += ((RGBUShortDef*)scanbuf)[dw].Blue;
+ }
+ }
+ curR /= len;
+ curG /= len;
+ curB /= len;
+
+ diffR = curR - lastR; lastR = curR;
+ diffG = curG - lastG; lastG = curG;
+ diffB = curB - lastB; lastB = curB;
+ DBG( _DBG_INFO2, "%i/%i-AVE(R,G,B)= %lu(%ld), %lu(%ld), %lu(%ld)\n",
+ i, stable_count, curR, diffR, curG, diffG, curB, diffB );
+
+ /* we consider the lamp to be stable,
+ * when the diffs are less than thresh for at least 3 loops
+ */
+ if((diffR < thresh) && (diffG < thresh) && (diffB < thresh)) {
+ if( stable_count > 3 )
+ break;
+ stable_count++;
+ } else {
+ stable_count = 0;
+ }
+
+ /* no need to sleep in the first loop */
+ if((i != 0) && (stable_count == 0))
+ sleep( _AUTO_SLEEP );
+ }
+
+ DBG( _DBG_INFO, "usb_AutoWarmup() done - %u loops\n", i+1 );
+ DBG( _DBG_INFO, "* AVE(R,G,B)= %lu(%ld), %lu(%ld), %lu(%ld)\n",
+ curR, diffR, curG, diffG, curB, diffB );
+ return SANE_TRUE;
+}
+
+/**
+ */
+static int
+usb_DoIt( Plustek_Device *dev )
+{
+ SANE_Bool skip_fine;
+ ScanDef *scan = &dev->scanning;
+
+ DBG( _DBG_INFO, "Settings done, so start...\n" );
+ if( !scan->skipCoarseCalib ) {
+ DBG( _DBG_INFO2, "###### ADJUST GAIN (COARSE)#######\n" );
+ if( !usb_AdjustGain(dev, 0)) {
+ DBG( _DBG_ERROR, "Coarse Calibration failed!!!\n" );
+ return _E_INTERNAL;
+ }
+ DBG( _DBG_INFO2, "###### ADJUST OFFSET (COARSE) ####\n" );
+ if( !usb_AdjustOffset(dev)) {
+ DBG( _DBG_ERROR, "Coarse Calibration failed!!!\n" );
+ return _E_INTERNAL;
+ }
+ } else {
+ DBG( _DBG_INFO2, "Coarse Calibration skipped, using saved data\n" );
+ }
+
+ skip_fine = SANE_FALSE;
+ if( dev->adj.cacheCalData ) {
+ skip_fine = usb_FineShadingFromFile(dev);
+ }
+
+ if( !skip_fine ) {
+ DBG( _DBG_INFO2, "###### ADJUST DARK (FINE) ########\n" );
+ if( !usb_AdjustDarkShading(dev)) {
+ DBG( _DBG_ERROR, "Fine Calibration failed!!!\n" );
+ return _E_INTERNAL;
+ }
+ DBG( _DBG_INFO2, "###### ADJUST WHITE (FINE) #######\n" );
+ if( !usb_AdjustWhiteShading(dev)) {
+ DBG( _DBG_ERROR, "Fine Calibration failed!!!\n" );
+ return _E_INTERNAL;
+ }
+ } else {
+ DBG( _DBG_INFO2, "###### FINE calibration skipped #######\n" );
+
+ m_ScanParam = scan->sParam;
+ usb_GetPhyPixels( dev, &m_ScanParam );
+
+ usb_line_statistics( "Dark", a_wDarkShading, m_ScanParam.Size.dwPhyPixels,
+ m_ScanParam.bDataType == SCANDATATYPE_Color?1:0);
+ usb_line_statistics( "White", a_wWhiteShading, m_ScanParam.Size.dwPhyPixels,
+ m_ScanParam.bDataType == SCANDATATYPE_Color?1:0);
+
+/* dev->usbDev.a_bRegs[0x45] &= ~0x10;*/
+ }
+ return 0;
+}
+
+/** usb_DoCalibration
+ */
+static int
+usb_DoCalibration( Plustek_Device *dev )
+{
+ int result;
+ ScanDef *scanning = &dev->scanning;
+ DCapsDef *scaps = &dev->usbDev.Caps;
+ HWDef *hw = &dev->usbDev.HwSetting;
+ u_char *regs = dev->usbDev.a_bRegs;
+ double dRed, dGreen, dBlue;
+
+ DBG( _DBG_INFO, "usb_DoCalibration()\n" );
+
+ if( SANE_TRUE == scanning->fCalibrated )
+ return SANE_TRUE;
+
+ /* Go to shading position
+ */
+ DBG( _DBG_INFO, "...goto shading position\n" );
+
+ /* HEINER: Currently not clear why Plustek didn't use the ShadingOriginY
+ * for all modes
+ * It should be okay to remove this and reference to the ShadingOriginY
+ */
+#if 0
+ if( scanning->sParam.bSource == SOURCE_Negative ) {
+
+ DBG( _DBG_INFO, "DataOrigin.x=%u, DataOrigin.y=%u\n",
+ dev->usbDev.pSource->DataOrigin.x, dev->usbDev.pSource->DataOrigin.y);
+ if(!usb_ModuleMove( dev, MOVE_Forward,
+ (dev->usbDev.pSource->DataOrigin.y +
+ dev->usbDev.pSource->Size.y / 2))) {
+ return _E_LAMP_NOT_IN_POS;
+ }
+
+ } else {
+#endif
+ DBG( _DBG_INFO, "ShadingOriginY=%lu\n",
+ (u_long)dev->usbDev.pSource->ShadingOriginY );
+
+ if((hw->motorModel == MODEL_HuaLien) && (scaps->OpticDpi.x==600)) {
+ if (!usb_ModuleMove(dev, MOVE_ToShading,
+ (u_long)dev->usbDev.pSource->ShadingOriginY)) {
+ return _E_LAMP_NOT_IN_POS;
+ }
+ } else {
+ if( !usb_ModuleMove(dev, MOVE_Forward,
+ (u_long)dev->usbDev.pSource->ShadingOriginY)) {
+ return _E_LAMP_NOT_IN_POS;
+ }
+ }
+/* }*/
+
+ DBG( _DBG_INFO, "shading position reached\n" );
+
+ usb_SpeedTest( dev );
+
+ if( !usb_AutoWarmup( dev ))
+ return SANE_FALSE;
+
+ usb_PrepareCalibration( dev );
+
+ /** this won't work for Plustek devices!!!
+ */
+#if 0
+ if( scaps->workaroundFlag & _WAF_BYPASS_CALIBRATION ||
+ !(SCANDEF_QualityScan & dev->scanning.dwFlag)) {
+#else
+ if( scaps->workaroundFlag & _WAF_BYPASS_CALIBRATION ) {
+#endif
+
+ DBG( _DBG_INFO, "--> BYPASS\n" );
+ regs[0x38] = regs[0x39] = regs[0x3a] = 0;
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+
+ setAdjGain( dev->adj.rgain, &regs[0x3b] );
+ setAdjGain( dev->adj.ggain, &regs[0x3c] );
+ setAdjGain( dev->adj.bgain, &regs[0x3d] );
+
+ regs[0x45] |= 0x10;
+ usb_SetMCLK( dev, &scanning->sParam );
+
+ dumpregs( dev->fd, regs );
+ DBG( _DBG_INFO, "<-- BYPASS\n" );
+
+ } else {
+
+ switch( scanning->sParam.bSource ) {
+
+ case SOURCE_Negative:
+ DBG( _DBG_INFO, "NEGATIVE Shading\n" );
+ m_dwIdealGain = IDEAL_GainNormal;
+
+ if( !_IS_PLUSTEKMOTOR(hw->motorModel)) {
+ DBG( _DBG_INFO, "No Plustek model: %udpi\n",
+ scanning->sParam.PhyDpi.x );
+ usb_SetMCLK( dev, &scanning->sParam );
+ } else {
+
+ if( dev->usbDev.Caps.OpticDpi.x == 600 )
+ dMCLK = 7;
+ else
+ dMCLK = 8;
+ }
+
+ for(;;) {
+ if( usb_AdjustGain( dev, 2)) {
+ if( regs[0x3b] && regs[0x3c] && regs[0x3d]) {
+ break;
+ } else {
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+ dMCLK--;
+ }
+ } else {
+ return _E_LAMP_NOT_STABLE;
+ }
+ }
+ scanning->sParam.dMCLK = dMCLK;
+ Gain_Reg.Red = regs[0x3b];
+ Gain_Reg.Green = regs[0x3c];
+ Gain_Reg.Blue = regs[0x3d];
+ Gain_NegHilight = Gain_Hilight;
+
+ DBG( _DBG_INFO, "MCLK = %.3f\n", dMCLK );
+ DBG( _DBG_INFO, "GainRed = %u\n", regs[0x3b] );
+ DBG( _DBG_INFO, "GainGreen = %u\n", regs[0x3c] );
+ DBG( _DBG_INFO, "GainBlue = %u\n", regs[0x3d] );
+
+#if 0
+ if( !usb_ModuleMove( dev, MOVE_Backward,
+ dev->usbDev.pSource->DataOrigin.y +
+ dev->usbDev.pSource->Size.y / 2 -
+ dev->usbDev.pSource->ShadingOriginY)) {
+ return _E_LAMP_NOT_IN_POS;
+ }
+#endif
+ regs[0x45] &= ~0x10;
+
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+
+ if(!usb_AdjustGain( dev, 1 ))
+ return _E_INTERNAL;
+
+ regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
+
+ DBG( _DBG_INFO, "Settings done, so start...\n" );
+ if( !usb_AdjustOffset(dev) || !usb_AdjustDarkShading(dev) ||
+ !usb_AdjustWhiteShading(dev)) {
+ return _E_INTERNAL;
+ }
+
+ dRed = 0.93 + 0.067 * Gain_Reg.Red;
+ dGreen = 0.93 + 0.067 * Gain_Reg.Green;
+ dBlue = 0.93 + 0.067 * Gain_Reg.Blue;
+ dExpect = 2.85;
+ if( dBlue >= dGreen && dBlue >= dRed )
+ dMax = dBlue;
+ else
+ if( dGreen >= dRed && dGreen >= dBlue )
+ dMax = dGreen;
+ else
+ dMax = dRed;
+
+ dMax = dExpect / dMax;
+ dRed *= dMax;
+ dGreen *= dMax;
+ dBlue *= dMax;
+
+ if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
+ usb_ResizeWhiteShading( dRed, a_wWhiteShading,
+ scanning->sParam.swGain[0]);
+ usb_ResizeWhiteShading( dGreen, a_wWhiteShading +
+ m_ScanParam.Size.dwPhyPixels,
+ scanning->sParam.swGain[1]);
+ usb_ResizeWhiteShading( dBlue, a_wWhiteShading +
+ m_ScanParam.Size.dwPhyPixels*2,
+ scanning->sParam.swGain[2]);
+ }
+ usb_line_statistics( "White", a_wWhiteShading,
+ m_ScanParam.Size.dwPhyPixels, SANE_TRUE);
+ break;
+
+ case SOURCE_ADF:
+ DBG( _DBG_INFO, "ADF Shading\n" );
+ m_dwIdealGain = IDEAL_GainPositive;
+ if( scanning->sParam.bDataType == SCANDATATYPE_BW ) {
+ if( scanning->sParam.PhyDpi.x <= 200 ) {
+ scanning->sParam.dMCLK = 4.5;
+ dMCLK = 4.0;
+ } else if ( scanning->sParam.PhyDpi.x <= 300 ) {
+ scanning->sParam.dMCLK = 4.0;
+ dMCLK = 3.5;
+ } else if( scanning->sParam.PhyDpi.x <= 400 ) {
+ scanning->sParam.dMCLK = 5.0;
+ dMCLK = 4.0;
+ } else {
+ scanning->sParam.dMCLK = 6.0;
+ dMCLK = 4.0;
+ }
+ } else { /* Gray */
+
+ if( scanning->sParam.PhyDpi.x <= 400 ) {
+ scanning->sParam.dMCLK = 6.0;
+ dMCLK = 4.5;
+ } else {
+ scanning->sParam.dMCLK = 9.0;
+ dMCLK = 7.0;
+ }
+ }
+ dMCLK_ADF = dMCLK;
+
+ result = usb_DoIt( dev );
+ if( result != 0 )
+ return result;
+ break;
+
+ case SOURCE_Transparency:
+ DBG( _DBG_INFO, "TRANSPARENCY Shading\n" );
+ m_dwIdealGain = IDEAL_GainPositive;
+
+ if( !_IS_PLUSTEKMOTOR(hw->motorModel)) {
+ DBG( _DBG_INFO, "No Plustek model: %udpi\n",
+ scanning->sParam.PhyDpi.x );
+ usb_SetMCLK( dev, &scanning->sParam );
+
+ } else {
+ if( dev->usbDev.Caps.OpticDpi.x == 600 ) {
+ scanning->sParam.dMCLK = 8;
+ dMCLK = 4;
+ } else {
+ scanning->sParam.dMCLK = 8;
+ dMCLK = 6;
+ }
+ }
+ result = usb_DoIt( dev );
+ if( result != 0 )
+ return result;
+ break;
+
+ default:
+ if( !_IS_PLUSTEKMOTOR(hw->motorModel)) {
+ DBG( _DBG_INFO, "No Plustek model: %udpi\n",
+ scanning->sParam.PhyDpi.x );
+ usb_SetMCLK( dev, &scanning->sParam );
+
+ } else if( dev->usbDev.Caps.OpticDpi.x == 600 ) {
+
+ DBG( _DBG_INFO, "Default Shading (600dpi)\n" );
+
+ if( dev->usbDev.Caps.bCCD == kSONY548 ) {
+
+ DBG( _DBG_INFO, "CCD - SONY548\n" );
+ if( scanning->sParam.PhyDpi.x <= 75 ) {
+ if( scanning->sParam.bDataType == SCANDATATYPE_Color )
+ scanning->sParam.dMCLK = dMCLK = 2.5;
+ else if(scanning->sParam.bDataType == SCANDATATYPE_Gray)
+ scanning->sParam.dMCLK = dMCLK = 7.0;
+ else
+ scanning->sParam.dMCLK = dMCLK = 7.0;
+
+ } else if( scanning->sParam.PhyDpi.x <= 300 ) {
+ if( scanning->sParam.bDataType == SCANDATATYPE_Color )
+ scanning->sParam.dMCLK = dMCLK = 3.0;
+ else if(scanning->sParam.bDataType == SCANDATATYPE_Gray)
+ scanning->sParam.dMCLK = dMCLK = 6.0;
+ else {
+ if( scanning->sParam.PhyDpi.x <= 100 )
+ scanning->sParam.dMCLK = dMCLK = 6.0;
+ else if( scanning->sParam.PhyDpi.x <= 200 )
+ scanning->sParam.dMCLK = dMCLK = 5.0;
+ else
+ scanning->sParam.dMCLK = dMCLK = 4.5;
+ }
+ } else if( scanning->sParam.PhyDpi.x <= 400 ) {
+ if( scanning->sParam.bDataType == SCANDATATYPE_Color )
+ scanning->sParam.dMCLK = dMCLK = 4.0;
+ else if( scanning->sParam.bDataType == SCANDATATYPE_Gray )
+ scanning->sParam.dMCLK = dMCLK = 6.0;
+ else
+ scanning->sParam.dMCLK = dMCLK = 4.0;
+ } else {
+ if(scanning->sParam.bDataType == SCANDATATYPE_Color)
+ scanning->sParam.dMCLK = dMCLK = 6.0;
+ else if(scanning->sParam.bDataType == SCANDATATYPE_Gray)
+ scanning->sParam.dMCLK = dMCLK = 7.0;
+ else
+ scanning->sParam.dMCLK = dMCLK = 6.0;
+ }
+
+ } else if( dev->usbDev.Caps.bPCB == 0x02 ) {
+ DBG( _DBG_INFO, "PCB - 0x02\n" );
+ if( scanning->sParam.PhyDpi.x > 300 )
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 6: 16);
+ else if( scanning->sParam.PhyDpi.x > 150 )
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?4.5: 13.5);
+ else
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?3: 8);
+
+ } else if( dev->usbDev.Caps.bButtons ) { /* with lens Shading piece (with gobo) */
+
+ DBG( _DBG_INFO, "CAPS - Buttons\n" );
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?3: 6);
+ if( dev->usbDev.HwSetting.motorModel == MODEL_KaoHsiung ) {
+ if( dev->usbDev.Caps.bCCD == kNEC3799 ) {
+ if( scanning->sParam.PhyDpi.x > 300 )
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 6: 13);
+ else if(scanning->sParam.PhyDpi.x > 150)
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?4.5:13.5);
+ else
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?3: 6);
+ } else {
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?3: 6);
+ }
+ } else { /* motorModel == MODEL_Hualien */
+ /* IMPORTANT !!!!
+ * for Hualien 600 dpi scanner big noise
+ */
+ hw->wLineEnd = 5384;
+ if(scanning->sParam.bDataType == SCANDATATYPE_Color &&
+ ((scanning->sParam.bBitDepth == 8 &&
+ (scanning->sParam.PhyDpi.x == 200 ||scanning->sParam.PhyDpi.x == 300))))
+ hw->wLineEnd = 7000;
+ regs[0x20] = _HIBYTE(hw->wLineEnd);
+ regs[0x21] = _LOBYTE(hw->wLineEnd);
+
+ if( scanning->sParam.PhyDpi.x > 300 ) {
+ if (scanning->sParam.bBitDepth > 8)
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 5: 13);
+ else
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 6: 13);
+ } else {
+ if( scanning->sParam.bBitDepth > 8 )
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 5: 13);
+ else
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?3: 6);
+ }
+ }
+ } else { /* without lens Shading piece (without gobo) - Model U12 only */
+ DBG( _DBG_INFO, "Default trunc (U12)\n" );
+ if( scanning->sParam.PhyDpi.x > 300 )
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 3: 9);
+ else
+ scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 2: 6);
+ }
+ } else { /* Device.Caps.OpticDpi.x == 1200 */
+
+ DBG( _DBG_INFO, "Default Shading (1200dpi)\n" );
+ if( scanning->sParam.bDataType != SCANDATATYPE_Color ) {
+ if( scanning->sParam.PhyDpi.x > 300 )
+ scanning->sParam.dMCLK = dMCLK = 6.0;
+ else {
+ scanning->sParam.dMCLK = dMCLK = 5.0;
+ regs[0x0a] = 1;
+ }
+ } else {
+ if( scanning->sParam.PhyDpi.x <= 300)
+ scanning->sParam.dMCLK = dMCLK = 2.0;
+ else if( scanning->sParam.PhyDpi.x <= 800 )
+ scanning->sParam.dMCLK = dMCLK = 4.0;
+ else
+ scanning->sParam.dMCLK = dMCLK = 5.5;
+ }
+ }
+
+ if (m_ScanParam.bSource == SOURCE_ADF)
+ m_dwIdealGain = IDEAL_GainPositive;
+ else
+ m_dwIdealGain = IDEAL_GainNormal;
+
+ result = usb_DoIt( dev );
+ if( result != 0 )
+ return result;
+ break;
+ }
+ }
+
+ /* home the sensor after calibration */
+ if( _IS_PLUSTEKMOTOR(hw->motorModel)) {
+ if( hw->motorModel != MODEL_Tokyo600 ) {
+ usb_ModuleMove ( dev, MOVE_Forward, hw->wMotorDpi / 5 );
+ usb_ModuleToHome( dev, SANE_TRUE );
+ }
+ } else {
+ usb_ModuleMove( dev, MOVE_Forward, 10 );
+ usleep( 1500 );
+ usb_ModuleToHome( dev, SANE_TRUE );
+ }
+
+ if( scanning->sParam.bSource == SOURCE_ADF ) {
+
+ if( scaps->bCCD == kNEC3778 )
+ usb_ModuleMove( dev, MOVE_Forward, 1000 );
+
+ else /* if( scaps->bCCD == kNEC3799) */
+ usb_ModuleMove( dev, MOVE_Forward, 3 * 300 + 38 );
+
+ usb_MotorOn( dev, SANE_FALSE );
+ }
+
+ scanning->fCalibrated = SANE_TRUE;
+ DBG( _DBG_INFO, "Calibration done\n" );
+ DBG( _DBG_INFO, "-----------------------\n" );
+ DBG( _DBG_INFO, "Static Gain:\n" );
+ DBG( _DBG_INFO, "REG[0x3b] = %u\n", regs[0x3b] );
+ DBG( _DBG_INFO, "REG[0x3c] = %u\n", regs[0x3c] );
+ DBG( _DBG_INFO, "REG[0x3d] = %u\n", regs[0x3d] );
+ DBG( _DBG_INFO, "Static Offset:\n" );
+ DBG( _DBG_INFO, "REG[0x38] = %i\n", regs[0x38] );
+ DBG( _DBG_INFO, "REG[0x39] = %i\n", regs[0x39] );
+ DBG( _DBG_INFO, "REG[0x3a] = %i\n", regs[0x3a] );
+ DBG( _DBG_INFO, "MCLK = %.2f\n", scanning->sParam.dMCLK );
+ DBG( _DBG_INFO, "-----------------------\n" );
+ return SANE_TRUE;
+}
+
+/* on different sensor orders, we need to adjust the shading buffer
+ * pointer, otherwise we correct the wrong channels
+ */
+static void
+get_ptrs(Plustek_Device *dev, u_short *buf, u_long offs,
+ u_short **r, u_short **g, u_short **b)
+{
+ ScanDef *scan = &dev->scanning;
+ DCapsDef *scaps = &dev->usbDev.Caps;
+ u_char so = scaps->bSensorOrder;
+
+ if (_WAF_RESET_SO_TO_RGB & scaps->workaroundFlag) {
+ if (scaps->bPCB != 0) {
+ if (scan->sParam.PhyDpi.x > scaps->bPCB)
+ so = SENSORORDER_rgb;
+ }
+ }
+
+ switch( so ) {
+ case SENSORORDER_gbr:
+ *g = buf;
+ *b = buf + offs;
+ *r = buf + offs * 2;
+ break;
+
+ case SENSORORDER_bgr:
+ *b = buf;
+ *g = buf + offs;
+ *r = buf + offs * 2;
+ break;
+
+ case SENSORORDER_rgb:
+ default:
+ *r = buf;
+ *g = buf + offs;
+ *b = buf + offs * 2;
+ break;
+ }
+}
+
+/** usb_DownloadShadingData
+ * according to the job id, different registers or DRAM areas are set
+ * in preparation for calibration or scanning
+ */
+static SANE_Bool
+usb_DownloadShadingData( Plustek_Device *dev, u_char what )
+{
+ u_char channel;
+ u_short *r, *g, *b;
+ DCapsDef *scaps = &dev->usbDev.Caps;
+ ScanDef *scan = &dev->scanning;
+ HWDef *hw = &dev->usbDev.HwSetting;
+ ScanParam *param = &dev->scanning.sParam;
+ u_char *regs = dev->usbDev.a_bRegs;
+
+ DBG( _DBG_INFO, "usb_DownloadShadingData(%u)\n", what );
+
+ channel = CHANNEL_green;
+ if( usb_IsCISDevice(dev))
+ channel = CHANNEL_blue;
+
+ switch( what ) {
+
+ case PARAM_WhiteShading:
+ if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
+
+ usb_SetDarkShading( dev, CHANNEL_red, a_wDarkShading,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ usb_SetDarkShading( dev, CHANNEL_green, a_wDarkShading +
+ m_ScanParam.Size.dwPhyPixels,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ usb_SetDarkShading( dev, CHANNEL_blue, a_wDarkShading +
+ m_ScanParam.Size.dwPhyPixels * 2,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ } else {
+ usb_SetDarkShading( dev, channel, a_wDarkShading +
+ m_ScanParam.Size.dwPhyPixels,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ }
+ regs[0x40] = 0x40;
+ regs[0x41] = 0x00;
+
+ /* set RAM configuration AND
+ * Gain = Multiplier Coefficient/16384
+ * CFG Register 0x40/0x41 for Multiplier Coefficient Source
+ * External DRAM for Offset Coefficient Source
+ */
+ regs[0x42] = (u_char)(( hw->wDRAMSize > 512)? 0x64: 0x24);
+ _UIO(sanei_lm983x_write( dev->fd, 0x40,
+ &regs[0x40], 0x42-0x40+1, SANE_TRUE ));
+ break;
+
+ case PARAM_Scan:
+ {
+#if 0
+ if( scaps->workaroundFlag & _WAF_BYPASS_CALIBRATION ||
+ !(SCANDEF_QualityScan & dev->scanning.dwFlag)) {
+#else
+ if( scaps->workaroundFlag & _WAF_BYPASS_CALIBRATION ) {
+#endif
+ DBG( _DBG_INFO, "--> BYPASS\n" );
+ /* set RAM configuration AND
+ * Bypass Multiplier
+ * CFG Register 0x40/0x41 for Multiplier Coefficient Source
+ * CFG Register 0x3e/0x3f for Offset Coefficient Source
+ */
+ regs[0x03] = 0;
+ regs[0x40] = 0x40;
+ regs[0x41] = 0x00;
+ regs[0x42] = (u_char)((hw->wDRAMSize > 512)? 0x61:0x21);
+ if( !usbio_WriteReg( dev->fd, 0x03, regs[0x03]))
+ return SANE_FALSE;
+
+ _UIO(sanei_lm983x_write( dev->fd, 0x40,
+ &regs[0x40], 3, SANE_TRUE));
+ break;
+ }
+
+ if( _LM9831 != hw->chip )
+ m_dwPixels = m_ScanParam.Size.dwPhyPixels;
+
+ if( scaps->workaroundFlag & _WAF_SKIP_FINE ) {
+ DBG( _DBG_INFO, "Skipping fine calibration\n" );
+ regs[0x42] = (u_char)(( hw->wDRAMSize > 512)? 0x60: 0x20);
+ if (scan->skipCoarseCalib) {
+
+ DBG( _DBG_INFO, "...cleaning shading buffer\n" );
+ memset( a_wWhiteShading, 0, _SHADING_BUF );
+ memset( a_wDarkShading, 0, _SHADING_BUF );
+
+ regs[0x40] = 0x3f;
+ regs[0x41] = 0xff;
+
+ _UIO(sanei_lm983x_write( dev->fd, 0x40,
+ &regs[0x40], 3, SANE_TRUE));
+ } else {
+ if( !usbio_WriteReg( dev->fd, 0x42, regs[0x42]))
+ return SANE_FALSE;
+ }
+ break;
+ }
+
+ DBG( _DBG_INFO, "Downloading %lu pixels\n", m_dwPixels );
+ /* Download the dark & white shadings to LM983x */
+ if( param->bDataType == SCANDATATYPE_Color ) {
+
+ get_ptrs(dev, a_wDarkShading, m_dwPixels, &r, &g, &b);
+
+ usb_SetDarkShading( dev, CHANNEL_red, r,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ usb_SetDarkShading( dev, CHANNEL_green, g,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ usb_SetDarkShading( dev, CHANNEL_blue, b,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ } else {
+ usb_SetDarkShading( dev, channel,
+ a_wDarkShading + m_dwPixels,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ }
+ if( param->bDataType == SCANDATATYPE_Color ) {
+
+ get_ptrs(dev, a_wWhiteShading,
+ m_ScanParam.Size.dwPhyPixels, &r, &g, &b);
+
+ usb_SetWhiteShading( dev, CHANNEL_red, r,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ usb_SetWhiteShading( dev, CHANNEL_green, g,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ usb_SetWhiteShading( dev, CHANNEL_blue, b,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ } else {
+ usb_SetWhiteShading( dev, channel, a_wWhiteShading,
+ (u_short)m_ScanParam.Size.dwPhyPixels * 2);
+ }
+
+ /* set RAM configuration AND
+ * Gain = Multiplier Coefficient/16384
+ * External DRAM for Multiplier Coefficient Source
+ * External DRAM for Offset Coefficient Source
+ */
+ regs[0x42] = (u_char)((hw->wDRAMSize > 512)? 0x66: 0x26);
+
+ if( scaps->workaroundFlag & _WAF_SKIP_WHITEFINE ) {
+ DBG( _DBG_INFO,"Skipping fine white calibration result\n");
+ regs[0x42] = (u_char)(( hw->wDRAMSize > 512)? 0x64: 0x24);
+ }
+
+ if( !usbio_WriteReg( dev->fd, 0x42, regs[0x42]))
+ return SANE_FALSE;
+ }
+ break;
+
+ default:
+ /* for coarse calibration and "black fine" */
+ regs[0x3e] = 0;
+ regs[0x3f] = 0;
+ regs[0x40] = 0x40;
+ regs[0x41] = 0x00;
+
+ /* set RAM configuration AND
+ * GAIN = Multiplier Coefficient/16384
+ * CFG Register 0x40/0x41 for Multiplier Coefficient Source
+ * CFG Register 0x3e/0x3f for Offset Coefficient Source
+ */
+ regs[0x42] = (u_char)((hw->wDRAMSize > 512)? 0x60: 0x20);
+ _UIO(sanei_lm983x_write( dev->fd, 0x3e, &regs[0x3e],
+ 0x42 - 0x3e + 1, SANE_TRUE ));
+ break;
+ }
+ return SANE_TRUE;
+}
+
+/* END PLUSTEK-USBSHADING.C .................................................*/