kopia lustrzana https://gitlab.com/sane-project/backends
1667 wiersze
46 KiB
C
1667 wiersze
46 KiB
C
/*.............................................................................
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* Project : SANE library for Plustek flatbed scanners.
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*.............................................................................
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*/
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/** @file plustek-usbscan.c
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* @brief Scanning...
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*
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* Based on sources acquired from Plustek Inc.<br>
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* Copyright (C) 2001-2013 Gerhard Jaeger <gerhard@gjaeger.de>
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*
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* History:
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* - 0.40 - starting version of the USB support
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* - 0.41 - minor fixes
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* - 0.42 - added some stuff for CIS devices
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* - 0.43 - no changes
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* - 0.44 - added CIS specific settings and calculations
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* - removed usb_IsEscPressed
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* - 0.45 - fixed the special setting stuff for CanoScan
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* - fixed pixel calculation for binary modes
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* - fixed cancel hang problem
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* - fixed CIS PhyBytes adjustment
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* - removed CanoScan specific setting stuff
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* - 0.46 - fixed problem in usb_SetScanParameters()
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* - 0.47 - no changes
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* - 0.48 - minor fixes
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* - 0.49 - a_bRegs is now part of the device structure
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* - using now PhyDpi.y as selector for the motor MCLK range
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* - changed usb_MapDownload prototype
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* - 0.50 - cleanup
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* - 0.51 - added usb_get_res() and usb_GetPhyPixels()
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* - 0.52 - removed stuff, that will most probably never be used
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* .
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* <hr>
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* This file is part of the SANE package.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA.
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*
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* As a special exception, the authors of SANE give permission for
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* additional uses of the libraries contained in this release of SANE.
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*
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* The exception is that, if you link a SANE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public
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* License. Your use of that executable is in no way restricted on
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* account of linking the SANE library code into it.
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*
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* This exception does not, however, invalidate any other reasons why
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* the executable file might be covered by the GNU General Public
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* License.
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*
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* If you submit changes to SANE to the maintainers to be included in
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* a subsequent release, you agree by submitting the changes that
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* those changes may be distributed with this exception intact.
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*
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* If you write modifications of your own for SANE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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* <hr>
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*/
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#define DIVIDER 8
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/** array used to get motor-settings and mclk-settings
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*/
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static int dpi_ranges[] = { 75,100,150,200,300,400,600,800,1200,2400 };
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static u_char bMaxITA;
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static SANE_Bool m_fAutoPark;
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static SANE_Bool m_fFirst;
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static double m_dHDPIDivider;
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static double m_dMCLKDivider;
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static ScanParam *m_pParam;
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static u_char m_bLineRateColor;
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static u_char m_bCM;
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static u_char m_bIntTimeAdjust;
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static u_char m_bOldScanData;
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static u_short m_wFastFeedStepSize;
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static u_short m_wLineLength;
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static u_short m_wStepSize;
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static u_long m_dwPauseLimit;
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static SANE_Bool m_fStart = SANE_FALSE;
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/* Prototype... */
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static SANE_Bool usb_DownloadShadingData( Plustek_Device*, u_char );
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/** returns the min of the two values val1 and val2
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* @param val1 - first parameter
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* @param val2 - second parameter
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* @return val1 if val1 < val2, else val1
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*/
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static u_long
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usb_min( u_long val1, u_long val2 )
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{
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if( val1 > val2 )
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return val2;
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return val1;
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}
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/** returns the max of the two values val1 and val2
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* @param val1 - first parameter
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* @param val2 - second parameter
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* @return val1 if val1 > val2, else val2
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*/
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static u_long
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usb_max( u_long val1, u_long val2 )
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{
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if( val1 > val2 )
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return val1;
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return val2;
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}
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/** function to get the possible resolution for a specific base resolution,
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* according to the dividers a LM983x offers.
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* @param base - scanners optical resolution
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* @param idx - which divider to use
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*/
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static u_short
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usb_get_res( u_short base, u_short idx )
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{
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double div_list[DIVIDER] = { 12.0, 8.0, 6.0, 4.0, 3.0, 2.0, 1.5, 1.0 };
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if( idx == 0 || idx > DIVIDER )
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return 0;
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return (u_short)((double)base/div_list[idx-1]);
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}
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/** Set the horizontal DPI divider.
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* Affected registers:<br>
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* 0x09 - Horizontal DPI divider HDPI_DIV<br>
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*
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* @param dev - pointer to our device structure,
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* it should contain all we need
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* @param xdpi - user specified horizontal resolution
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* @return - the function returns the "normalized" horizontal resolution.
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*/
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static u_short
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usb_SetAsicDpiX( Plustek_Device *dev, u_short xdpi )
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{
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u_short res;
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ScanDef *scanning = &dev->scanning;
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DCapsDef *scaps = &dev->usbDev.Caps;
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u_char *regs = dev->usbDev.a_bRegs;
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/* limit xdpi to lower value for certain devices...
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*/
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if( scaps->OpticDpi.x == 1200 &&
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scanning->sParam.bDataType != SCANDATATYPE_Color &&
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xdpi < 150 &&
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scanning->sParam.bDataType == SCANDATATYPE_BW ) {
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xdpi = 150;
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DBG( _DBG_INFO2, "* LIMIT XDPI to %udpi\n", xdpi );
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}
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m_dHDPIDivider = (double)scaps->OpticDpi.x / xdpi;
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if (m_dHDPIDivider < 1.5)
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{
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m_dHDPIDivider = 1.0;
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regs[0x09] = 0;
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}
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else if (m_dHDPIDivider < 2.0)
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{
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m_dHDPIDivider = 1.5;
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regs[0x09] = 1;
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}
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else if (m_dHDPIDivider < 3.0)
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{
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m_dHDPIDivider = 2.0;
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regs[0x09] = 2;
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}
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else if (m_dHDPIDivider < 4.0)
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{
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m_dHDPIDivider = 3.0;
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regs[0x09] = 3;
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}
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else if (m_dHDPIDivider < 6.0)
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{
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m_dHDPIDivider = 4.0;
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regs[0x09] = 4;
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}
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else if (m_dHDPIDivider < 8.0)
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{
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m_dHDPIDivider = 6.0;
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regs[0x09] = 5;
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}
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else if (m_dHDPIDivider < 12.0)
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{
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m_dHDPIDivider = 8.0;
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regs[0x09] = 6;
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}
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else
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{
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m_dHDPIDivider = 12.0;
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regs[0x09] = 7;
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}
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/* adjust, if any turbo/preview mode is set, should be 0 here... */
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if( regs[0x0a] )
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regs[0x09] -= ((regs[0x0a] >> 2) + 2);
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DBG( _DBG_INFO2, "* HDPI: %.3f\n", m_dHDPIDivider );
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res = (u_short)((double)scaps->OpticDpi.x / m_dHDPIDivider);
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DBG( _DBG_INFO2, "* XDPI=%u, HDPI=%.3f\n", res, m_dHDPIDivider );
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return res;
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}
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/**
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* @param dev - pointer to our device structure,
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* it should contain all we need
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* @param ydpi - user specified vertical resolution
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* @return -
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*/
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static u_short
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usb_SetAsicDpiY( Plustek_Device *dev, u_short ydpi )
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{
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ScanDef *scanning = &dev->scanning;
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DCapsDef *sCaps = &dev->usbDev.Caps;
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HWDef *hw = &dev->usbDev.HwSetting;
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u_short wMinDpi, wDpi;
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if(0 != sCaps->bSensorDistance )
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wMinDpi = sCaps->OpticDpi.y / sCaps->bSensorDistance;
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else
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wMinDpi = 75;
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/* Here we might have to check against the MinDpi value ! */
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wDpi = (ydpi + wMinDpi - 1) / wMinDpi * wMinDpi;
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/*
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* HEINER: added '*2'
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*/
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if( wDpi > sCaps->OpticDpi.y * 2 )
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wDpi = sCaps->OpticDpi.y * 2;
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if( (hw->motorModel == MODEL_Tokyo600) ||
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!_IS_PLUSTEKMOTOR(hw->motorModel)) {
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/* return wDpi; */
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} else if( sCaps->wFlags & DEVCAPSFLAG_Adf && sCaps->OpticDpi.x == 600 ) {
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/* for ADF scanner color mode 300 dpi big noise */
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if( scanning->sParam.bDataType == SCANDATATYPE_Color &&
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scanning->sParam.bBitDepth > 8 && wDpi < 300 ) {
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wDpi = 300;
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}
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} else if( sCaps->OpticDpi.x == 1200 ) {
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if( scanning->sParam.bDataType != SCANDATATYPE_Color && wDpi < 200) {
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wDpi = 200;
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}
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}
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DBG( _DBG_INFO2, "* YDPI=%u, MinDPIY=%u\n", wDpi, wMinDpi );
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return wDpi;
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}
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/** set color mode and sensor configuration stuff, according to the data mode
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* Affected registers:<br>
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* 0x26 - 0x27 - Color Mode settings<br>
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* 0x0f - 0x18 - Sensor Configuration - directly from the HwDefs<br>
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* 0x09 - add Data Mode and Pixel Packing<br>
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*
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* @param dev - pointer to our device structure,
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* it should contain all we need
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* @param pParam - pointer to the current scan parameters
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* @return - Nothing
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*/
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static void
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usb_SetColorAndBits( Plustek_Device *dev, ScanParam *pParam )
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{
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HWDef *hw = &dev->usbDev.HwSetting;
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u_char *regs = dev->usbDev.a_bRegs;
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/* Set pixel packing, data mode and AFE operation */
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switch( pParam->bDataType ) {
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case SCANDATATYPE_Color:
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m_bCM = 3;
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regs[0x26] = hw->bReg_0x26 & 0x7;
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/* if set to one channel color, we select the blue channel
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* as input source, this is the default, but I don't know
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* what happens, if we deselect this
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*/
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if( regs[0x26] & _ONE_CH_COLOR )
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regs[0x26] |= (_BLUE_CH | 0x01);
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memcpy( ®s[0x0f], hw->bReg_0x0f_Color, 10 );
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break;
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case SCANDATATYPE_Gray:
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m_bCM = 1;
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regs[0x26] = (hw->bReg_0x26 & 0x18) | 0x04;
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memcpy( ®s[0x0f], hw->bReg_0x0f_Mono, 10 );
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break;
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case SCANDATATYPE_BW:
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m_bCM = 1;
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regs[0x26] = (hw->bReg_0x26 & 0x18) | 0x04;
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memcpy( ®s[0x0f], hw->bReg_0x0f_Mono, 10 );
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break;
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}
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regs[0x27] = hw->bReg_0x27;
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if( pParam->bBitDepth > 8 ) {
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regs[0x09] |= 0x20; /* 14/16bit image data */
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} else if( pParam->bBitDepth == 8 ) {
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regs[0x09] |= 0x18; /* 8bits/per pixel */
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}
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}
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/**
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* Data output from NS983X should be times of 2-byte and every line
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* will append 2 status bytes
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*/
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static void
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usb_GetPhyPixels( Plustek_Device *dev, ScanParam *sp )
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{
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sp->Size.dwValidPixels = sp->Size.dwPixels * sp->PhyDpi.x / sp->UserDpi.x;
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if (sp->bBitDepth == 1) {
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/* Pixels should be times of 16 */
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sp->Size.dwPhyPixels =
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(sp->Size.dwValidPixels + 15UL) & 0xfffffff0UL;
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sp->Size.dwPhyBytes = sp->Size.dwPhyPixels / 8UL + 2UL;
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} else if (sp->bBitDepth == 8) {
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/* Pixels should be times of 2 */
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sp->Size.dwPhyPixels = (sp->Size.dwValidPixels + 1UL) & 0xfffffffeUL;
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sp->Size.dwPhyBytes = sp->Size.dwPhyPixels * sp->bChannels + 2UL;
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/* need to be adjusted fo CIS devices in color mode */
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if(usb_IsCISDevice( dev ) && (sp->bDataType == SCANDATATYPE_Color)) {
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sp->Size.dwPhyBytes *= 3;
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}
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}
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else /* sp->bBitDepth == 16 */
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{
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sp->Size.dwPhyPixels = sp->Size.dwValidPixels;
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sp->Size.dwPhyBytes = sp->Size.dwPhyPixels * 2 * sp->bChannels + 2UL;
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/* need to be adjusted fo CIS devices in color mode */
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if(usb_IsCISDevice( dev ) && (sp->bDataType == SCANDATATYPE_Color)) {
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sp->Size.dwPhyBytes *= 3;
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}
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}
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}
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/** Calculate basic image settings like the number of physical bytes per line
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* etc...
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* Affected registers:<br>
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* 0x22/0x23 - Data Pixels Start<br>
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* 0x24/0x25 - Data Pixels End<br>
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* 0x4a/0x4b - Full Steps to Skip at Start of Scan
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*
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* @param dev - pointer to our device structure,
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* it should contain all we need
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* @param pParam - pointer to the current scan parameters
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* @return - Nothing
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*/
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static void
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usb_GetScanRect( Plustek_Device *dev, ScanParam *sp )
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{
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u_short wDataPixelStart, wLineEnd;
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DCapsDef *sCaps = &dev->usbDev.Caps;
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HWDef *hw = &dev->usbDev.HwSetting;
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u_char *regs = dev->usbDev.a_bRegs;
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/* Convert pixels to physical dpi based */
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usb_GetPhyPixels( dev, sp );
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/* Compute data start pixel */
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#if 0
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/* HEINER: check ADF stuff... */
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if(sp->bCalibration != PARAM_Gain &&
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sp->bCalibration != PARAM_Offset && ScanInf.m_fADF)
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wDataPixelStart = 2550 * sCaps->OpticDpi.x / 300UL -
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(u_short)(m_dHDPIDivider * sp->Size.dwValidPixels + 0.5);
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else
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#endif
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wDataPixelStart = (u_short)((u_long)sp->Origin.x *
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sCaps->OpticDpi.x / 300UL);
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/* during the calibration steps, we read the entire CCD data
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*/
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if((sp->bCalibration != PARAM_Gain)&&(sp->bCalibration != PARAM_Offset)) {
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/* HEINER: check ADF stuff... */
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#if 0
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if(ScanInf.m_fADF) {
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wDataPixelStart = 2550 * sCaps->OpticDpi.x / 300UL -
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(u_short)(m_dHDPIDivider * sp->Size.dwValidPixels + 0.5);
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}
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#endif
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wDataPixelStart += hw->wActivePixelsStart;
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}
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wLineEnd = wDataPixelStart + (u_short)(m_dHDPIDivider *
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sp->Size.dwPhyPixels + 0.5);
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DBG( _DBG_INFO2, "* DataPixelStart=%u, LineEnd=%u\n",
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wDataPixelStart, wLineEnd );
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if( wDataPixelStart & 1 ) {
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wDataPixelStart++;
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wLineEnd++;
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DBG( _DBG_INFO2, "* DataPixelStart=%u, LineEnd=%u (ADJ)\n",
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wDataPixelStart, wLineEnd );
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}
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regs[0x22] = _HIBYTE( wDataPixelStart );
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regs[0x23] = _LOBYTE( wDataPixelStart );
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/* should match: wLineEnd-wDataPixelStart%(m_dHDPIDivider*2) = 0!! */
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regs[0x24] = _HIBYTE( wLineEnd );
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regs[0x25] = _LOBYTE( wLineEnd );
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DBG( _DBG_INFO2, ">> End-Start=%u, HDPI=%.2f\n",
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wLineEnd-wDataPixelStart, m_dHDPIDivider);
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/* Y origin */
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if( sp->bCalibration == PARAM_Scan ) {
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if( hw->motorModel == MODEL_Tokyo600 ) {
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if(sp->PhyDpi.x <= 75)
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sp->Origin.y += 20;
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else if(sp->PhyDpi.x <= 100)
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{
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if (sp->bDataType == SCANDATATYPE_Color)
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sp->Origin.y += 0;
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else
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sp->Origin.y -= 6;
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}
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else if(sp->PhyDpi.x <= 150)
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{
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if (sp->bDataType == SCANDATATYPE_Color)
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sp->Origin.y -= 0;
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}
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else if(sp->PhyDpi.x <= 200)
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{
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if (sp->bDataType == SCANDATATYPE_Color)
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sp->Origin.y -= 10;
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else
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sp->Origin.y -= 4;
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}
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else if(sp->PhyDpi.x <= 300)
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{
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if (sp->bDataType == SCANDATATYPE_Color)
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sp->Origin.y += 16;
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else
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sp->Origin.y -= 18;
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}
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else if(sp->PhyDpi.x <= 400)
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{
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if (sp->bDataType == SCANDATATYPE_Color)
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sp->Origin.y += 15;
|
|
else if(sp->bDataType == SCANDATATYPE_BW)
|
|
sp->Origin.y += 4;
|
|
}
|
|
else /* if(sp->PhyDpi.x <= 600) */
|
|
{
|
|
if (sp->bDataType == SCANDATATYPE_Gray)
|
|
sp->Origin.y += 4;
|
|
}
|
|
}
|
|
|
|
/* Add gray mode offset (Green offset, we assume the CCD are
|
|
* always be RGB or BGR order).
|
|
*/
|
|
if (sp->bDataType != SCANDATATYPE_Color)
|
|
sp->Origin.y += (u_long)(300UL *
|
|
sCaps->bSensorDistance / sCaps->OpticDpi.y);
|
|
}
|
|
|
|
sp->Origin.y=(u_short)((u_long)sp->Origin.y * hw->wMotorDpi/300UL);
|
|
|
|
/* Something wrong, but I can not find it. */
|
|
if( hw->motorModel == MODEL_HuaLien && sCaps->OpticDpi.x == 600)
|
|
sp->Origin.y = sp->Origin.y * 297 / 298;
|
|
|
|
DBG(_DBG_INFO2,"* Full Steps to Skip at Start = 0x%04x\n",
|
|
sp->Origin.y);
|
|
|
|
regs[0x4a] = _HIBYTE( sp->Origin.y );
|
|
regs[0x4b] = _LOBYTE( sp->Origin.y );
|
|
}
|
|
|
|
/** preset scan stepsize and fastfeed stepsize
|
|
*/
|
|
static void
|
|
usb_PresetStepSize( Plustek_Device *dev, ScanParam *pParam )
|
|
{
|
|
u_short ssize;
|
|
double mclkdiv = pParam->dMCLK;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
ssize = (u_short)((double)CRYSTAL_FREQ / ( mclkdiv * 8.0 *
|
|
(double)m_bCM * hw->dMaxMotorSpeed * 4.0 * (double)hw->wMotorDpi));
|
|
|
|
regs[0x46] = _HIBYTE( ssize );
|
|
regs[0x47] = _LOBYTE( ssize );
|
|
regs[0x48] = _HIBYTE( ssize );
|
|
regs[0x49] = _LOBYTE( ssize );
|
|
|
|
DBG( _DBG_INFO2, "* StepSize(Preset) = %u (0x%04x)\n", ssize, ssize );
|
|
}
|
|
|
|
/** calculate default phase difference DPD
|
|
*/
|
|
static void
|
|
usb_GetDPD( Plustek_Device *dev )
|
|
{
|
|
int qtcnt; /* quarter speed count count reg 51 b2..3 */
|
|
int hfcnt; /* half speed count reg 51 b0..1 */
|
|
int strev; /* steps to reverse reg 50 */
|
|
int dpd; /* calculated dpd reg 52:53 */
|
|
int st; /* step size reg 46:47 */
|
|
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
qtcnt = (regs[0x51] & 0x30) >> 4; /* quarter speed count */
|
|
hfcnt = (regs[0x51] & 0xc0) >> 6; /* half speed count */
|
|
|
|
if( _LM9831 == hw->chip )
|
|
strev = regs[0x50] & 0x3f; /* steps to reverse */
|
|
else /* LM9832/3 */
|
|
{
|
|
if (qtcnt == 3)
|
|
qtcnt = 8;
|
|
if (hfcnt == 3)
|
|
hfcnt = 8;
|
|
strev = regs[0x50]; /* steps to reverse */
|
|
}
|
|
|
|
st = regs[0x46] * 256 + regs[0x47]; /* scan step size */
|
|
|
|
if (m_wLineLength == 0)
|
|
dpd = 0;
|
|
else
|
|
{
|
|
dpd = (((qtcnt * 4) + (hfcnt * 2) + strev) * 4 * st) %
|
|
(m_wLineLength * m_bLineRateColor);
|
|
DBG( _DBG_INFO2, "* DPD =%u (0x%04x)\n", dpd, dpd );
|
|
dpd = m_wLineLength * m_bLineRateColor - dpd;
|
|
}
|
|
|
|
DBG( _DBG_INFO2, "* DPD =%u (0x%04x), step size=%u, steps2rev=%u\n",
|
|
dpd, dpd, st, strev);
|
|
DBG( _DBG_INFO2, "* llen=%u, lineRateColor=%u, qtcnt=%u, hfcnt=%u\n",
|
|
m_wLineLength, m_bLineRateColor, qtcnt, hfcnt );
|
|
|
|
regs[0x51] |= (u_char)((dpd >> 16) & 0x03);
|
|
regs[0x52] = (u_char)(dpd >> 8);
|
|
regs[0x53] = (u_char)(dpd & 0xFF);
|
|
}
|
|
|
|
#define MCLKDIV_SCALING 2
|
|
#define _MIN(a,b) ((a) < (b) ? (a) : (b))
|
|
#define _MAX(a,b) ((a) > (b) ? (a) : (b))
|
|
|
|
/**
|
|
*/
|
|
static int
|
|
usb_GetMCLKDiv( Plustek_Device *dev )
|
|
{
|
|
int j, pixelbits, pixelsperline, r;
|
|
int minmclk, maxmclk, mclkdiv;
|
|
double hdpi, min_int_time;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
|
|
DBG( _DBG_INFO, "usb_GetMCLKDiv()\n" );
|
|
|
|
r = 8; /* line rate */
|
|
if ((regs[0x26] & 7) == 0)
|
|
r = 24; /* pixel rate */
|
|
|
|
/* use high or low res min integration time */
|
|
min_int_time = ((regs[0x9]&7) > 2 ? hw->dMinIntegrationTimeLowres:
|
|
hw->dMinIntegrationTimeHighres);
|
|
|
|
minmclk = (int)ceil((double) MCLKDIV_SCALING * CRYSTAL_FREQ *
|
|
min_int_time /((double)1000. * r * m_wLineLength));
|
|
minmclk = _MAX(minmclk,MCLKDIV_SCALING);
|
|
|
|
maxmclk = (int)(32.5*MCLKDIV_SCALING + .5);
|
|
|
|
DBG(_DBG_INFO2,"- lower mclkdiv limit=%f\n",(double)minmclk/MCLKDIV_SCALING);
|
|
DBG(_DBG_INFO2,"- upper mclkdiv limit=%f\n",(double)maxmclk/MCLKDIV_SCALING);
|
|
|
|
/* get the bits per pixel */
|
|
switch (regs[0x9] & 0x38) {
|
|
case 0: pixelbits=1; break;
|
|
case 0x8: pixelbits=2; break;
|
|
case 0x10: pixelbits=4; break;
|
|
case 0x18: pixelbits=8; break;
|
|
default: pixelbits=16;break;
|
|
}
|
|
|
|
/* compute the horizontal dpi (pixels per inch) */
|
|
j = regs[0x9] & 0x7;
|
|
hdpi = ((j&1)*.5+1)*(j&2?2:1)*(j&4?4:1);
|
|
|
|
pixelsperline = (int)((256*regs[0x24]+regs[0x25]-256*regs[0x22]-regs[0x23])
|
|
*pixelbits/(hdpi * 8));
|
|
mclkdiv = (int)ceil((double)MCLKDIV_SCALING * pixelsperline * CRYSTAL_FREQ
|
|
/((double) 8. * m_wLineLength * dev->transferRate));
|
|
|
|
DBG( _DBG_INFO2, "- hdpi = %.3f\n", hdpi );
|
|
DBG( _DBG_INFO2, "- pixelbits = %u\n", pixelbits );
|
|
DBG( _DBG_INFO2, "- pixelsperline = %u\n", pixelsperline );
|
|
DBG( _DBG_INFO2, "- linelen = %u\n", m_wLineLength );
|
|
DBG( _DBG_INFO2, "- transferrate = %lu\n", dev->transferRate );
|
|
DBG( _DBG_INFO2, "- MCLK Divider = %u\n", mclkdiv/MCLKDIV_SCALING );
|
|
|
|
mclkdiv = _MAX(mclkdiv,minmclk);
|
|
mclkdiv = _MIN(mclkdiv,maxmclk);
|
|
DBG( _DBG_INFO2, "- Current MCLK Divider = %u\n", mclkdiv/MCLKDIV_SCALING );
|
|
|
|
if( dev->transferRate == 2000000 ) {
|
|
while (mclkdiv * hdpi < 6.*MCLKDIV_SCALING) {
|
|
mclkdiv++;
|
|
}
|
|
DBG( _DBG_INFO2, "- HIGHSPEED MCLK Divider = %u\n",
|
|
mclkdiv/MCLKDIV_SCALING );
|
|
}
|
|
|
|
return mclkdiv;
|
|
}
|
|
|
|
/** Plusteks' poor-man MCLK calculation...
|
|
* at least we give the master clock divider and adjust the step size
|
|
* and integration time (for 14/16 bit modes)
|
|
*/
|
|
static double
|
|
usb_GetMCLKDivider( Plustek_Device *dev, ScanParam *pParam )
|
|
{
|
|
double dMaxIntegrationTime;
|
|
double dMaxMCLKDivider;
|
|
|
|
DCapsDef *sCaps = &dev->usbDev.Caps;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
DBG( _DBG_INFO, "usb_GetMCLKDivider()\n" );
|
|
|
|
if( dev->transferRate == 2000000 ) {
|
|
int mclkdiv = usb_GetMCLKDiv(dev);
|
|
pParam->dMCLK = (double)mclkdiv/MCLKDIV_SCALING;
|
|
}
|
|
|
|
m_dMCLKDivider = pParam->dMCLK;
|
|
|
|
if (m_dHDPIDivider*m_dMCLKDivider >= 5.3/*6*/)
|
|
m_bIntTimeAdjust = 0;
|
|
else
|
|
m_bIntTimeAdjust = ceil( 5.3/*6.0*/ / (m_dHDPIDivider*m_dMCLKDivider));
|
|
|
|
if( pParam->bCalibration == PARAM_Scan ) {
|
|
|
|
usb_GetMCLKDiv(dev);
|
|
|
|
/* Compare Integration with USB speed to find the best ITA value */
|
|
if( pParam->bBitDepth > 8 ) {
|
|
|
|
while( pParam->Size.dwPhyBytes >
|
|
(m_dMCLKDivider * m_bCM * m_wLineLength / 6 * 9 / 10) *
|
|
(1 + m_bIntTimeAdjust)) {
|
|
m_bIntTimeAdjust++;
|
|
}
|
|
|
|
if( hw->motorModel == MODEL_HuaLien &&
|
|
sCaps->bCCD == kNEC3799 && m_bIntTimeAdjust > bMaxITA) {
|
|
m_bIntTimeAdjust = bMaxITA;
|
|
}
|
|
|
|
if(((hw->motorModel == MODEL_HP) && (sCaps->bCCD == kNECSLIM))/* ||
|
|
( regs[0x26] & _ONE_CH_COLOR )*/) {
|
|
|
|
bMaxITA = (u_char)floor((m_dMCLKDivider + 1) / 2.0);
|
|
|
|
DBG( _DBG_INFO2, "* MaxITA (HP) = %u\n", bMaxITA );
|
|
if( m_bIntTimeAdjust > bMaxITA ) {
|
|
DBG( _DBG_INFO, "* ITA (%u) limited\n", m_bIntTimeAdjust );
|
|
m_bIntTimeAdjust = bMaxITA;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
DBG( _DBG_INFO2, "* Integration Time Adjust = %u (HDPI=%.3f,MCLKD=%.3f)\n",
|
|
m_bIntTimeAdjust, m_dHDPIDivider, m_dMCLKDivider );
|
|
|
|
regs[0x08] = (u_char)((m_dMCLKDivider - 1) * 2);
|
|
regs[0x19] = m_bIntTimeAdjust;
|
|
|
|
if( m_bIntTimeAdjust != 0 ) {
|
|
|
|
m_wStepSize = (u_short)((u_long) m_wStepSize *
|
|
(m_bIntTimeAdjust + 1) / m_bIntTimeAdjust);
|
|
if( m_wStepSize < 2 )
|
|
m_wStepSize = 2;
|
|
|
|
regs[0x46] = _HIBYTE(m_wStepSize);
|
|
regs[0x47] = _LOBYTE(m_wStepSize);
|
|
|
|
DBG( _DBG_INFO2, "* Stepsize = %u, 0x46=0x%02x 0x47=0x%02x\n",
|
|
m_wStepSize, regs[0x46], regs[0x47] );
|
|
usb_GetDPD( dev );
|
|
}
|
|
|
|
/* Compute maximum MCLK divider base on maximum integration time for
|
|
* high lamp PWM, use equation 4
|
|
*/
|
|
dMaxIntegrationTime = hw->dIntegrationTimeHighLamp;
|
|
dMaxMCLKDivider = (double)CRYSTAL_FREQ * dMaxIntegrationTime /
|
|
(1000 * 8 * m_bCM * m_wLineLength);
|
|
|
|
/* Determine lamp PWM setting */
|
|
if( m_dMCLKDivider > dMaxMCLKDivider ) {
|
|
|
|
DBG( _DBG_INFO2, "* Setting GreenPWMDutyCycleLow\n" );
|
|
regs[0x2a] = _HIBYTE( hw->wGreenPWMDutyCycleLow );
|
|
regs[0x2b] = _LOBYTE( hw->wGreenPWMDutyCycleLow );
|
|
|
|
} else {
|
|
|
|
DBG( _DBG_INFO2, "* Setting GreenPWMDutyCycleHigh\n" );
|
|
regs[0x2a] = _HIBYTE( hw->wGreenPWMDutyCycleHigh );
|
|
regs[0x2b] = _LOBYTE( hw->wGreenPWMDutyCycleHigh );
|
|
}
|
|
|
|
DBG( _DBG_INFO2, "* Current MCLK Divider = %f\n", m_dMCLKDivider );
|
|
return m_dMCLKDivider;
|
|
}
|
|
|
|
/** calculate the step size of each scan step
|
|
*/
|
|
static void
|
|
usb_GetStepSize( Plustek_Device *dev, ScanParam *pParam )
|
|
{
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
/* Compute step size using equation 1 */
|
|
if (m_bIntTimeAdjust != 0) {
|
|
m_wStepSize = (u_short)(((u_long) pParam->PhyDpi.y * m_wLineLength *
|
|
m_bLineRateColor * (m_bIntTimeAdjust + 1)) /
|
|
(4 * hw->wMotorDpi * m_bIntTimeAdjust));
|
|
} else {
|
|
m_wStepSize = (u_short)(((u_long) pParam->PhyDpi.y * m_wLineLength *
|
|
m_bLineRateColor) / (4 * hw->wMotorDpi));
|
|
}
|
|
|
|
if (m_wStepSize < 2)
|
|
m_wStepSize = 2;
|
|
|
|
m_wStepSize = m_wStepSize * 298 / 297;
|
|
|
|
regs[0x46] = _HIBYTE( m_wStepSize );
|
|
regs[0x47] = _LOBYTE( m_wStepSize );
|
|
|
|
DBG( _DBG_INFO2, "* Stepsize = %u, 0x46=0x%02x 0x47=0x%02x\n",
|
|
m_wStepSize, regs[0x46], regs[0x47] );
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static void
|
|
usb_GetLineLength( Plustek_Device *dev, ScanParam *param )
|
|
{
|
|
/* [note]
|
|
* The ITA in this moment is always 0, it will be changed later when we
|
|
* calculate MCLK. This is very strange why this routine will not call
|
|
* again to get all new value after ITA was changed? If this routine
|
|
* never call again, maybe we remove all factor with ITA here.
|
|
*/
|
|
int tr;
|
|
int tpspd; /* turbo/preview mode speed reg 0a b2..3 */
|
|
int tpsel; /* turbo/preview mode select reg 0a b0..1 */
|
|
int gbnd; /* guardband duration reg 0e b4..7 */
|
|
int dur; /* pulse duration reg 0e b0..3 */
|
|
int ntr; /* number of tr pulses reg 0d b7 */
|
|
int afeop; /* scan mode, 0=pixel rate, 1=line rate, */
|
|
/* 4=1 channel mode a, 5=1 channel mode b, reg 26 b0..2 */
|
|
int ctmode; /* CIS tr timing mode reg 19 b0..1 */
|
|
int tp; /* tpspd or 1 if tpsel=0 */
|
|
int b; /* if ctmode=0, (ntr+1)*((2*gbnd)+dur+1), otherwise 1 */
|
|
int tradj; /* ITA */
|
|
int en_tradj;
|
|
u_short le;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
ClkMotorDef *motor = usb_GetMotorSet( hw->motorModel );
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
tpspd = (regs[0x0a] & 0x0c) >> 2; /* turbo/preview mode speed */
|
|
tpsel = regs[0x0a] & 3; /* turbo/preview mode select */
|
|
|
|
gbnd = (regs[0x0e] & 0xf0) >> 4; /* TR fi1 guardband duration */
|
|
dur = (regs[0x0e] & 0xf); /* TR pulse duration */
|
|
|
|
ntr = regs[0x0d] / 128; /* number of tr pulses */
|
|
|
|
afeop = regs[0x26] & 7; /* afe op - 3 channel or 1 channel */
|
|
|
|
tradj = regs[0x19] & 0x7f; /* integration time adjust */
|
|
en_tradj = (tradj) ? 1 : 0;
|
|
|
|
ctmode = (regs[0x0b] >> 3) & 3; /* cis tr timing mode */
|
|
|
|
m_bLineRateColor = 1;
|
|
if (afeop == 1 || afeop == 5) /* if 3 channel line or 1 channel mode b */
|
|
m_bLineRateColor = 3;
|
|
|
|
/* according to turbo/preview mode to set value */
|
|
if( tpsel == 0 ) {
|
|
tp = 1;
|
|
} else {
|
|
tp = tpspd + 2;
|
|
if( tp == 5 )
|
|
tp++;
|
|
}
|
|
|
|
b = 1;
|
|
if( ctmode == 0 ) { /* CCD mode scanner*/
|
|
|
|
b = (ntr + 1) * ((2 * gbnd) + dur + 1);
|
|
b += (1 - ntr) * en_tradj;
|
|
}
|
|
if( ctmode == 2 ) /* CIS mode scanner */
|
|
b = 3;
|
|
|
|
/* it might be necessary to tweak this value, to keep the
|
|
* MCLK constant - see some sheet-fed devices
|
|
*/
|
|
le = hw->wLineEnd;
|
|
if (motor->dpi_thresh != 0) {
|
|
if( param->PhyDpi.y <= motor->dpi_thresh) {
|
|
le = motor->lineend;
|
|
DBG( _DBG_INFO2, "* Adjusting lineend: %u\n", le);
|
|
}
|
|
regs[0x20] = _HIBYTE( le );
|
|
regs[0x21] = _LOBYTE( le );
|
|
}
|
|
|
|
tr = m_bLineRateColor * (le + tp * (b + 3 - ntr));
|
|
|
|
if( tradj == 0 ) {
|
|
if( ctmode == 0 )
|
|
tr += m_bLineRateColor;
|
|
} else {
|
|
|
|
int le_phi, num_byteclk, num_mclkf, tr_fast_pix, extra_pix;
|
|
|
|
/* Line color or gray mode */
|
|
if( afeop != 0 ) {
|
|
|
|
le_phi = (tradj + 1) / 2 + 1 + 6;
|
|
num_byteclk = ((le_phi + 8 * le + 8 * b + 4) /
|
|
(8 * tradj)) + 1;
|
|
num_mclkf = 8 * tradj * num_byteclk;
|
|
tr_fast_pix = num_byteclk;
|
|
extra_pix = (num_mclkf - le_phi) % 8;
|
|
}
|
|
else /* 3 channel pixel rate color */
|
|
{
|
|
le_phi = (tradj + 1) / 2 + 1 + 10 + 12;
|
|
num_byteclk = ((le_phi + 3 * 8 * le + 3 * 8 * b + 3 * 4) /
|
|
(3 * 8 * tradj)) + 1;
|
|
num_mclkf = 3 * 8 * tradj * num_byteclk;
|
|
tr_fast_pix = num_byteclk;
|
|
extra_pix = (num_mclkf - le_phi) % (3 * 8);
|
|
}
|
|
|
|
tr = b + le + 4 + tr_fast_pix;
|
|
if (extra_pix == 0)
|
|
tr++;
|
|
tr *= m_bLineRateColor;
|
|
}
|
|
m_wLineLength = tr / m_bLineRateColor;
|
|
|
|
DBG( _DBG_INFO2, "* LineLength=%d, LineRateColor=%u\n",
|
|
m_wLineLength, m_bLineRateColor );
|
|
}
|
|
|
|
/** usb_GetMotorParam
|
|
* registers 0x56, 0x57
|
|
*/
|
|
static void
|
|
usb_GetMotorParam( Plustek_Device *dev, ScanParam *pParam )
|
|
{
|
|
int idx, i;
|
|
ClkMotorDef *clk;
|
|
MDef *md;
|
|
DCapsDef *sCaps = &dev->usbDev.Caps;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
if (!_IS_PLUSTEKMOTOR(hw->motorModel)) {
|
|
|
|
clk = usb_GetMotorSet( hw->motorModel );
|
|
md = clk->motor_sets;
|
|
idx = 0;
|
|
for( i = 0; i < _MAX_CLK; i++ ) {
|
|
if( pParam->PhyDpi.y <= dpi_ranges[i] )
|
|
break;
|
|
idx++;
|
|
}
|
|
if( idx >= _MAX_CLK )
|
|
idx = _MAX_CLK - 1;
|
|
|
|
regs[0x56] = md[idx].pwm;
|
|
regs[0x57] = md[idx].pwm_duty;
|
|
|
|
regs[0x43] = 0;
|
|
regs[0x44] = 0;
|
|
|
|
if( md[idx].scan_lines_per_line > 1 ) {
|
|
|
|
if((pParam->bBitDepth > 8) &&
|
|
(pParam->bDataType == SCANDATATYPE_Color)) {
|
|
|
|
regs[0x43] = 0xff;
|
|
regs[0x44] = md[idx].scan_lines_per_line;
|
|
|
|
DBG( _DBG_INFO2, "* Line Skipping : 0x43=0x%02x, 0x44=0x%02x\n",
|
|
regs[0x43], regs[0x44] );
|
|
}
|
|
}
|
|
} else {
|
|
|
|
if( sCaps->OpticDpi.x == 1200 ) {
|
|
|
|
switch( hw->motorModel ) {
|
|
|
|
case MODEL_HuaLien:
|
|
case MODEL_KaoHsiung:
|
|
default:
|
|
if(pParam->PhyDpi.x <= 200)
|
|
{
|
|
regs[0x56] = 1;
|
|
regs[0x57] = 48; /* 63; */
|
|
}
|
|
else if(pParam->PhyDpi.x <= 300)
|
|
{
|
|
regs[0x56] = 2; /* 8; */
|
|
regs[0x57] = 48; /* 56; */
|
|
}
|
|
else if(pParam->PhyDpi.x <= 400)
|
|
{
|
|
regs[0x56] = 8;
|
|
regs[0x57] = 48;
|
|
}
|
|
else if(pParam->PhyDpi.x <= 600)
|
|
{
|
|
regs[0x56] = 2; /* 10; */
|
|
regs[0x57] = 48; /* 56; */
|
|
}
|
|
else /* pParam->PhyDpi.x == 1200) */
|
|
{
|
|
regs[0x56] = 1; /* 8; */
|
|
regs[0x57] = 48; /* 56; */
|
|
}
|
|
break;
|
|
}
|
|
} else {
|
|
switch ( hw->motorModel ) {
|
|
|
|
case MODEL_Tokyo600:
|
|
regs[0x56] = 16;
|
|
regs[0x57] = 4; /* 2; */
|
|
break;
|
|
case MODEL_HuaLien:
|
|
{
|
|
if(pParam->PhyDpi.x <= 200)
|
|
{
|
|
regs[0x56] = 64; /* 24; */
|
|
regs[0x57] = 4; /* 16; */
|
|
}
|
|
else if(pParam->PhyDpi.x <= 300)
|
|
{
|
|
regs[0x56] = 64; /* 16; */
|
|
regs[0x57] = 4; /* 16; */
|
|
}
|
|
else if(pParam->PhyDpi.x <= 400)
|
|
{
|
|
regs[0x56] = 64; /* 16; */
|
|
regs[0x57] = 4; /* 16; */
|
|
}
|
|
else /* if(pParam->PhyDpi.x <= 600) */
|
|
{
|
|
/* HEINER: check ADF stuff... */
|
|
#if 0
|
|
if(ScanInf.m_fADF)
|
|
{
|
|
regs[0x56] = 8;
|
|
regs[0x57] = 48;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
regs[0x56] = 64; /* 2; */
|
|
regs[0x57] = 4; /* 48; */
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case MODEL_KaoHsiung:
|
|
default:
|
|
if(pParam->PhyDpi.x <= 200)
|
|
{
|
|
regs[0x56] = 24;
|
|
regs[0x57] = 16;
|
|
}
|
|
else if(pParam->PhyDpi.x <= 300)
|
|
{
|
|
regs[0x56] = 16;
|
|
regs[0x57] = 16;
|
|
}
|
|
else if(pParam->PhyDpi.x <= 400)
|
|
{
|
|
regs[0x56] = 16;
|
|
regs[0x57] = 16;
|
|
}
|
|
else /* if(pParam->PhyDpi.x <= 600) */
|
|
{
|
|
regs[0x56] = 2;
|
|
regs[0x57] = 48;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
DBG( _DBG_INFO2, "* MOTOR-Settings: PWM=0x%02x, PWM_DUTY=0x%02x\n",
|
|
regs[0x56], regs[0x57] );
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static void
|
|
usb_GetPauseLimit( Plustek_Device *dev, ScanParam *pParam )
|
|
{
|
|
int coeffsize, scaler;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
scaler = 1;
|
|
if( hw->bReg_0x26 & _ONE_CH_COLOR ) {
|
|
if( pParam->bDataType == SCANDATATYPE_Color ) {
|
|
scaler = 3;
|
|
}
|
|
}
|
|
|
|
/* compute size of coefficient ram */
|
|
coeffsize = 4 + 16 + 16; /* gamma and shading and offset */
|
|
|
|
/* if 16 bit, then not all is used */
|
|
if( regs[0x09] & 0x20 ) {
|
|
coeffsize = 16 + 16; /* no gamma */
|
|
}
|
|
coeffsize *= (2*3); /* 3 colors and 2 bytes/word */
|
|
|
|
|
|
/* Get available buffer size in KB
|
|
* for 512kb this will be 296
|
|
* for 2Mb this will be 1832
|
|
*/
|
|
m_dwPauseLimit = (u_long)(hw->wDRAMSize - (u_long)(coeffsize));
|
|
m_dwPauseLimit -= ((pParam->Size.dwPhyBytes*scaler) / 1024 + 1);
|
|
|
|
/* If not reversing, take into account the steps to reverse */
|
|
if( regs[0x50] == 0 )
|
|
m_dwPauseLimit -= ((regs[0x54] & 7) *
|
|
(pParam->Size.dwPhyBytes * scaler) + 1023) / 1024;
|
|
|
|
DBG( _DBG_INFO2, "* PL=%lu, coeffsize=%u, scaler=%u\n",
|
|
m_dwPauseLimit, coeffsize, scaler );
|
|
|
|
m_dwPauseLimit = usb_max( usb_min(m_dwPauseLimit,
|
|
(u_long)ceil(pParam->Size.dwTotalBytes / 1024.0)), 2);
|
|
|
|
regs[0x4e] = (u_char)floor((m_dwPauseLimit*512.0)/(2.0*hw->wDRAMSize));
|
|
|
|
if( regs[0x4e] > 1 ) {
|
|
regs[0x4e]--;
|
|
if(regs[0x4e] > 1)
|
|
regs[0x4e]--;
|
|
} else
|
|
regs[0x4e] = 1;
|
|
|
|
/* resume, when buffer is 2/8 kbytes full (512k/2M memory)
|
|
*/
|
|
regs[0x4f] = 1;
|
|
|
|
DBG( _DBG_INFO2, "* PauseLimit = %lu, [0x4e] = 0x%02x, [0x4f] = 0x%02x\n",
|
|
m_dwPauseLimit, regs[0x4e], regs[0x4f] );
|
|
}
|
|
|
|
/** usb_GetScanLinesAndSize
|
|
*/
|
|
static void
|
|
usb_GetScanLinesAndSize( Plustek_Device *dev, ScanParam *pParam )
|
|
{
|
|
DCapsDef *sCaps = &dev->usbDev.Caps;
|
|
|
|
pParam->Size.dwPhyLines = (u_long)ceil((double) pParam->Size.dwLines *
|
|
pParam->PhyDpi.y / pParam->UserDpi.y);
|
|
|
|
/* Calculate color offset */
|
|
if (pParam->bCalibration == PARAM_Scan && pParam->bChannels == 3) {
|
|
|
|
dev->scanning.bLineDistance = sCaps->bSensorDistance *
|
|
pParam->PhyDpi.y / sCaps->OpticDpi.x;
|
|
pParam->Size.dwPhyLines += (dev->scanning.bLineDistance << 1);
|
|
}
|
|
else
|
|
dev->scanning.bLineDistance = 0;
|
|
|
|
pParam->Size.dwTotalBytes = pParam->Size.dwPhyBytes * pParam->Size.dwPhyLines;
|
|
|
|
DBG( _DBG_INFO, "* PhyBytes = %lu\n", pParam->Size.dwPhyBytes );
|
|
DBG( _DBG_INFO, "* PhyLines = %lu\n", pParam->Size.dwPhyLines );
|
|
DBG( _DBG_INFO, "* TotalBytes = %lu\n", pParam->Size.dwTotalBytes );
|
|
}
|
|
|
|
/** function to preset/reset the merlin registers
|
|
*/
|
|
static SANE_Bool
|
|
usb_SetScanParameters( Plustek_Device *dev, ScanParam *pParam )
|
|
{
|
|
static u_char reg8, reg38[6], reg48[2];
|
|
|
|
ScanDef *scan = &dev->scanning;
|
|
ScanParam *pdParam = &dev->scanning.sParam;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
m_pParam = pParam;
|
|
|
|
DBG( _DBG_INFO, "usb_SetScanParameters()\n" );
|
|
|
|
if( !usb_IsScannerReady(dev))
|
|
return SANE_FALSE;
|
|
|
|
if(pParam->bCalibration == PARAM_Scan && pParam->bSource == SOURCE_ADF) {
|
|
/* HEINER: dSaveMoveSpeed is only used in func EjectPaper!!!
|
|
dSaveMoveSpeed = hw->dMaxMoveSpeed;
|
|
*/
|
|
hw->dMaxMoveSpeed = 1.0;
|
|
usb_MotorSelect( dev, SANE_TRUE );
|
|
usb_MotorOn( dev, SANE_TRUE );
|
|
}
|
|
|
|
/*
|
|
* calculate the basic settings...
|
|
*/
|
|
pParam->PhyDpi.x = usb_SetAsicDpiX( dev, pParam->UserDpi.x );
|
|
pParam->PhyDpi.y = usb_SetAsicDpiY( dev, pParam->UserDpi.y );
|
|
|
|
usb_SetColorAndBits( dev, pParam );
|
|
usb_GetScanRect ( dev, pParam );
|
|
|
|
usb_PresetStepSize( dev, pParam );
|
|
|
|
if( dev->caps.dwFlag & SFLAG_ADF ) {
|
|
|
|
if( pParam->bCalibration == PARAM_Scan ) {
|
|
|
|
if( pdParam->bSource == SOURCE_ADF ) {
|
|
regs[0x50] = 0;
|
|
regs[0x51] = 0x40;
|
|
if( pParam->PhyDpi.x <= 300)
|
|
regs[0x54] = (regs[0x54] & ~7) | 4; /* 3; */
|
|
else
|
|
regs[0x54] = (regs[0x54] & ~7) | 5; /* 4; */
|
|
} else {
|
|
regs[0x50] = hw->bStepsToReverse;
|
|
regs[0x51] = hw->bReg_0x51;
|
|
regs[0x54] &= ~7;
|
|
}
|
|
} else
|
|
regs[0x50] = 0;
|
|
} else {
|
|
if( pParam->bCalibration == PARAM_Scan )
|
|
regs[0x50] = hw->bStepsToReverse;
|
|
else
|
|
regs[0x50] = 0;
|
|
}
|
|
|
|
/* Assume we will not use ITA */
|
|
regs[0x19] = m_bIntTimeAdjust = 0;
|
|
|
|
/* Get variables from calculation algorithms */
|
|
if(!(pParam->bCalibration == PARAM_Scan &&
|
|
pParam->bSource == SOURCE_ADF && dev->usbDev.fLastScanIsAdf )) {
|
|
|
|
DBG( _DBG_INFO2, "* Scan calculations...\n" );
|
|
usb_GetLineLength ( dev, pParam );
|
|
usb_GetStepSize ( dev, pParam );
|
|
usb_GetDPD ( dev );
|
|
usb_GetMCLKDivider( dev, pParam );
|
|
usb_GetMotorParam ( dev, pParam );
|
|
}
|
|
|
|
/* Compute fast feed step size, use equation 3 and equation 8 */
|
|
if( m_dMCLKDivider < 1.0)
|
|
m_dMCLKDivider = 1.0;
|
|
|
|
m_wFastFeedStepSize = (u_short)(CRYSTAL_FREQ /
|
|
(m_dMCLKDivider * 8 * m_bCM * hw->dMaxMoveSpeed *
|
|
4 * hw->wMotorDpi));
|
|
/* CIS special ;-) */
|
|
if((hw->bReg_0x26 & _ONE_CH_COLOR) && (m_bCM == 1)) {
|
|
DBG( _DBG_INFO2, "* CIS FFStep-Speedup\n" );
|
|
m_wFastFeedStepSize /= 3;
|
|
}
|
|
|
|
if( m_bIntTimeAdjust != 0 )
|
|
m_wFastFeedStepSize /= m_bIntTimeAdjust;
|
|
|
|
if(regs[0x0a])
|
|
m_wFastFeedStepSize *= ((regs[0x0a] >> 2) + 2);
|
|
regs[0x48] = _HIBYTE( m_wFastFeedStepSize );
|
|
regs[0x49] = _LOBYTE( m_wFastFeedStepSize );
|
|
|
|
DBG( _DBG_INFO2, "* FFStepSize = %u, [0x48] = 0x%02x, [0x49] = 0x%02x\n",
|
|
m_wFastFeedStepSize, regs[0x48], regs[0x49] );
|
|
|
|
/* Compute the number of lines to scan using actual Y resolution */
|
|
usb_GetScanLinesAndSize( dev, pParam );
|
|
|
|
/* Pause limit should be bounded by total bytes to read
|
|
* so that the chassis will not move too far.
|
|
*/
|
|
usb_GetPauseLimit( dev, pParam );
|
|
|
|
/* For ADF .... */
|
|
if(pParam->bCalibration == PARAM_Scan && pParam->bSource == SOURCE_ADF) {
|
|
|
|
if( dev->usbDev.fLastScanIsAdf ) {
|
|
|
|
regs[0x08] = reg8;
|
|
memcpy( ®s[0x38], reg38, sizeof(reg38));
|
|
memcpy( ®s[0x48], reg48, sizeof(reg48));
|
|
|
|
} else {
|
|
|
|
reg8 = regs[0x08];
|
|
memcpy( reg38, ®s[0x38], sizeof(reg38));
|
|
memcpy( reg48, ®s[0x48], sizeof(reg48));
|
|
}
|
|
usb_MotorSelect( dev, SANE_TRUE );
|
|
}
|
|
|
|
/* Reset LM983x's state machine before setting register values */
|
|
if( !usbio_WriteReg( dev->fd, 0x18, 0x18 ))
|
|
return SANE_FALSE;
|
|
|
|
usleep(200 * 1000); /* Need to delay at least xxx microseconds */
|
|
|
|
if( !usbio_WriteReg( dev->fd, 0x07, 0x20 ))
|
|
return SANE_FALSE;
|
|
|
|
if( !usbio_WriteReg( dev->fd, 0x19, 6 ))
|
|
return SANE_FALSE;
|
|
|
|
regs[0x07] = 0;
|
|
regs[0x28] = 0;
|
|
|
|
/* set unused registers to 0 */
|
|
memset( ®s[0x03], 0, 3 );
|
|
memset( ®s[0x5f], 0, 0x7f-0x5f+1 );
|
|
|
|
if( !usb_IsSheetFedDevice(dev)) {
|
|
/* we limit the possible scansteps to avoid, that the sensors bumps
|
|
* against the scanbed - not necessary for sheet-fed devices
|
|
*/
|
|
if(pParam->bCalibration==PARAM_Scan && pParam->bSource!=SOURCE_ADF) {
|
|
|
|
u_long lines = pParam->Size.dwPhyLines + scan->bLinesToSkip +
|
|
scan->dwLinesDiscard + 5;
|
|
u_short scansteps = (u_short)ceil((double)lines*
|
|
hw->wMotorDpi / pParam->PhyDpi.y);
|
|
DBG( _DBG_INFO, "* Scansteps=%u (%lu*%u/%u)\n", scansteps, lines,
|
|
hw->wMotorDpi, pParam->PhyDpi.y );
|
|
regs[0x4c] = _HIBYTE(scansteps);
|
|
regs[0x4d] = _LOBYTE(scansteps);
|
|
}
|
|
}
|
|
|
|
/* set the merlin registers */
|
|
_UIO(sanei_lm983x_write( dev->fd, 0x03, ®s[0x03], 3, SANE_TRUE));
|
|
_UIO(sanei_lm983x_write( dev->fd, 0x08, ®s[0x08], 0x7f - 0x08+1, SANE_TRUE));
|
|
|
|
usleep(100);
|
|
|
|
if( !usbio_WriteReg( dev->fd, 0x07, 0 ))
|
|
return SANE_FALSE;
|
|
|
|
DBG( _DBG_INFO, "usb_SetScanParameters() done.\n" );
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static SANE_Bool
|
|
usb_ScanBegin( Plustek_Device *dev, SANE_Bool auto_park )
|
|
{
|
|
u_char value;
|
|
u_short inches;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
DCapsDef *sc = &dev->usbDev.Caps;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
DBG( _DBG_INFO, "usb_ScanBegin()\n" );
|
|
|
|
if( !usb_Wait4ScanSample( dev ))
|
|
return SANE_FALSE;
|
|
|
|
/* save the request for usb_ScanEnd () */
|
|
m_fAutoPark = auto_park;
|
|
|
|
/* Disable home sensor during scan, or the chassis cannot move */
|
|
value = ((m_pParam->bCalibration == PARAM_Scan &&
|
|
m_pParam->bSource == SOURCE_ADF)? (regs[0x58] & ~7): 0);
|
|
|
|
if(!usbio_WriteReg( dev->fd, 0x58, value ))
|
|
return SANE_FALSE;
|
|
|
|
/* Check if scanner is ready for receiving command */
|
|
if( !usb_IsScannerReady(dev))
|
|
return SANE_FALSE;
|
|
|
|
/* Flush cache - only LM9831 (Source: National Semiconductors) */
|
|
if( _LM9831 == hw->chip ) {
|
|
|
|
for(;;) {
|
|
|
|
if( SANE_TRUE == cancelRead ) {
|
|
DBG( _DBG_INFO, "ScanBegin() - Cancel detected...\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
_UIO(usbio_ReadReg( dev->fd, 0x01, &m_bOldScanData ));
|
|
if( m_bOldScanData ) {
|
|
|
|
u_long dwBytesToRead = m_bOldScanData * hw->wDRAMSize * 4;
|
|
u_char *pBuffer = malloc( sizeof(u_char) * dwBytesToRead );
|
|
|
|
DBG(_DBG_INFO,"Flushing cache - %lu bytes (bOldScanData=%u)\n",
|
|
dwBytesToRead, m_bOldScanData );
|
|
|
|
_UIO(sanei_lm983x_read( dev->fd, 0x00, pBuffer,
|
|
dwBytesToRead, SANE_FALSE ));
|
|
free( pBuffer );
|
|
|
|
} else
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Download map & Shading data */
|
|
if(( m_pParam->bCalibration == PARAM_Scan && !usb_MapDownload( dev )) ||
|
|
!usb_DownloadShadingData( dev, m_pParam->bCalibration )) {
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
/* Move chassis and start to read image data */
|
|
if (!usbio_WriteReg( dev->fd, 0x07, 3 ))
|
|
return SANE_FALSE;
|
|
|
|
usbio_ReadReg( dev->fd, 0x01, &m_bOldScanData );
|
|
m_bOldScanData = 0; /* No data at all */
|
|
|
|
m_fStart = m_fFirst = SANE_TRUE; /* Prepare to read */
|
|
|
|
DBG( _DBG_DREGS, "Register Dump before reading data:\n" );
|
|
dumpregs( dev->fd, NULL );
|
|
|
|
inches = (u_short)((m_pParam->Origin.y *300UL)/hw->wMotorDpi);
|
|
DBG( _DBG_INFO2, ">>> INCH=%u, DOY=%u\n", inches, sc->Normal.DataOrigin.y );
|
|
if( inches > sc->Normal.DataOrigin.y )
|
|
usb_WaitPos( dev, 150, SANE_FALSE );
|
|
|
|
DBG( _DBG_INFO, "usb_ScanBegin() done.\n" );
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
/** usb_ScanEnd
|
|
* stop all the processing stuff and reposition sensor back home
|
|
*/
|
|
static SANE_Bool
|
|
usb_ScanEnd( Plustek_Device *dev )
|
|
{
|
|
u_char value;
|
|
|
|
DBG( _DBG_INFO, "usbDev_ScanEnd(), start=%u, park=%u\n",
|
|
m_fStart, m_fAutoPark );
|
|
usbio_ReadReg( dev->fd, 0x07, &value );
|
|
if( value == 3 || value != 2 )
|
|
usbio_WriteReg( dev->fd, 0x07, 0 );
|
|
|
|
if( m_fStart ) {
|
|
m_fStart = SANE_FALSE;
|
|
|
|
if( m_fAutoPark )
|
|
usb_ModuleToHome( dev, SANE_FALSE );
|
|
}
|
|
else if( SANE_TRUE == cancelRead ) {
|
|
|
|
usb_ModuleToHome( dev, SANE_FALSE );
|
|
}
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static SANE_Bool
|
|
usb_IsDataAvailableInDRAM( Plustek_Device *dev )
|
|
{
|
|
/* Compute polling timeout
|
|
* Height (Inches) / MaxScanSpeed (Inches/Second) = Seconds to move the
|
|
* module from top to bottom. Then convert the seconds to miliseconds
|
|
* by multiply 1000. We add extra 2 seconds to get some tolerance.
|
|
*/
|
|
u_char a_bBand[3];
|
|
long dwTicks;
|
|
struct timeval t;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
DBG( _DBG_INFO, "usb_IsDataAvailableInDRAM()\n" );
|
|
|
|
gettimeofday( &t, NULL);
|
|
dwTicks = t.tv_sec + 30;
|
|
|
|
for(;;) {
|
|
|
|
_UIO( sanei_lm983x_read( dev->fd, 0x01, a_bBand, 3, SANE_FALSE ));
|
|
|
|
gettimeofday( &t, NULL);
|
|
if( t.tv_sec > dwTicks )
|
|
break;
|
|
|
|
if( usb_IsEscPressed()) {
|
|
DBG(_DBG_INFO,"usb_IsDataAvailableInDRAM() - Cancel detected...\n");
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
/* It is not stable for read */
|
|
if((a_bBand[0] != a_bBand[1]) && (a_bBand[1] != a_bBand[2]))
|
|
continue;
|
|
|
|
if( a_bBand[0] > m_bOldScanData ) {
|
|
|
|
if( m_pParam->bSource != SOURCE_Reflection )
|
|
|
|
usleep(1000*(30 * regs[0x08] * dev->usbDev.Caps.OpticDpi.x / 600));
|
|
else
|
|
usleep(1000*(20 * regs[0x08] * dev->usbDev.Caps.OpticDpi.x / 600));
|
|
|
|
DBG( _DBG_INFO, "Data is available\n" );
|
|
return SANE_TRUE;
|
|
}
|
|
}
|
|
|
|
DBG( _DBG_INFO, "NO Data available\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static SANE_Bool
|
|
usb_ScanReadImage( Plustek_Device *dev, void *pBuf, u_long dwSize )
|
|
{
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
SANE_Status res;
|
|
|
|
DBG( _DBG_READ, "usb_ScanReadImage(%lu)\n", dwSize );
|
|
|
|
if( m_fFirst ) {
|
|
|
|
m_fFirst = SANE_FALSE;
|
|
|
|
/* Wait for data band ready */
|
|
if (!usb_IsDataAvailableInDRAM( dev )) {
|
|
DBG( _DBG_ERROR, "Nothing to read...\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
/* restore the fast forward stepsize...*/
|
|
sanei_lm983x_write(dev->fd, 0x48, ®s[0x48], 2, SANE_TRUE);
|
|
}
|
|
res = sanei_lm983x_read(dev->fd, 0x00, (u_char *)pBuf, dwSize, SANE_FALSE);
|
|
|
|
/* check for pressed ESC button, as sanei_lm983x_read() may take some time
|
|
*/
|
|
if( usb_IsEscPressed()) {
|
|
DBG(_DBG_INFO,"usb_ScanReadImage() - Cancel detected...\n");
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
DBG( _DBG_READ, "usb_ScanReadImage() done, result: %d\n", res );
|
|
if( SANE_STATUS_GOOD == res ) {
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
DBG( _DBG_ERROR, "usb_ScanReadImage() failed\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
/** calculate the number of pixels per line and lines out of a given
|
|
* crop-area. The size of the area is given on a 300dpi base!
|
|
*/
|
|
static void
|
|
usb_GetImageInfo( Plustek_Device *dev, ImgDef *pInfo, WinInfo *pSize )
|
|
{
|
|
DBG( _DBG_INFO, "usb_GetImageInfo()\n" );
|
|
|
|
pSize->dwPixels = (u_long)pInfo->crArea.cx * pInfo->xyDpi.x / 300UL;
|
|
pSize->dwLines = (u_long)pInfo->crArea.cy * pInfo->xyDpi.y / 300UL;
|
|
|
|
DBG( _DBG_INFO2,"Area: cx=%u, cy=%u\n",pInfo->crArea.cx,pInfo->crArea.cy);
|
|
|
|
switch( pInfo->wDataType ) {
|
|
|
|
case COLOR_TRUE48:
|
|
pSize->dwBytes = pSize->dwPixels * 6UL;
|
|
break;
|
|
|
|
case COLOR_TRUE24:
|
|
if( dev->scanning.fGrayFromColor > 7 ){
|
|
pSize->dwBytes = (pSize->dwPixels + 7UL) >> 3;
|
|
pSize->dwPixels = pSize->dwBytes * 8;
|
|
} else {
|
|
pSize->dwBytes = pSize->dwPixels * 3UL;
|
|
}
|
|
break;
|
|
|
|
case COLOR_GRAY16:
|
|
pSize->dwBytes = pSize->dwPixels << 1;
|
|
break;
|
|
|
|
case COLOR_256GRAY:
|
|
pSize->dwBytes = pSize->dwPixels;
|
|
break;
|
|
|
|
default:
|
|
pSize->dwBytes = (pSize->dwPixels + 7UL) >> 3;
|
|
pSize->dwPixels = pSize->dwBytes * 8;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static void
|
|
usb_SaveImageInfo( Plustek_Device *dev, ImgDef *pInfo )
|
|
{
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
ScanParam *pParam = &dev->scanning.sParam;
|
|
|
|
DBG( _DBG_INFO, "usb_SaveImageInfo()\n" );
|
|
|
|
/* Dpi & Origins */
|
|
pParam->UserDpi = pInfo->xyDpi;
|
|
pParam->Origin.x = pInfo->crArea.x;
|
|
pParam->Origin.y = pInfo->crArea.y;
|
|
|
|
/* Source & Bits */
|
|
pParam->bBitDepth = 8;
|
|
|
|
switch( pInfo->wDataType ) {
|
|
|
|
case COLOR_TRUE48:
|
|
pParam->bBitDepth = 16;
|
|
/* fall through... */
|
|
|
|
case COLOR_TRUE24:
|
|
pParam->bDataType = SCANDATATYPE_Color;
|
|
|
|
/* AFE operation: one or 3 channels ! */
|
|
if( hw->bReg_0x26 & _ONE_CH_COLOR )
|
|
pParam->bChannels = 1;
|
|
else
|
|
pParam->bChannels = 3;
|
|
break;
|
|
|
|
case COLOR_GRAY16:
|
|
pParam->bBitDepth = 16;
|
|
/* fall through... */
|
|
|
|
case COLOR_256GRAY:
|
|
pParam->bDataType = SCANDATATYPE_Gray;
|
|
pParam->bChannels = 1;
|
|
break;
|
|
|
|
default:
|
|
pParam->bBitDepth = 1;
|
|
pParam->bDataType = SCANDATATYPE_BW;
|
|
pParam->bChannels = 1;
|
|
}
|
|
|
|
DBG( _DBG_INFO, "* dwFlag = 0x%08lx\n", pInfo->dwFlag );
|
|
|
|
if( pInfo->dwFlag & SCANDEF_Transparency )
|
|
pParam->bSource = SOURCE_Transparency;
|
|
else if( pInfo->dwFlag & SCANDEF_Negative )
|
|
pParam->bSource = SOURCE_Negative;
|
|
else if( pInfo->dwFlag & SCANDEF_Adf )
|
|
pParam->bSource = SOURCE_ADF;
|
|
else
|
|
pParam->bSource = SOURCE_Reflection;
|
|
|
|
/* it seems, that we need to adjust the Origin.x when we have a
|
|
* sheetfed device to avoid stripes in the resulting pictures
|
|
*/
|
|
if( usb_IsSheetFedDevice(dev)) {
|
|
|
|
int step, div, org, xdpi;
|
|
|
|
xdpi = usb_SetAsicDpiX( dev, pParam->UserDpi.x );
|
|
|
|
if ((xdpi * 2) <= 300)
|
|
div = 300;
|
|
else if ((xdpi * 2) <= 600)
|
|
div = 600;
|
|
else if ((xdpi * 2) <= 1200)
|
|
div = 1200;
|
|
else
|
|
div = 2400;
|
|
|
|
step = div / xdpi;
|
|
org = pParam->Origin.x;
|
|
|
|
pParam->Origin.x = (pParam->Origin.x / step) * step;
|
|
|
|
if (org != pParam->Origin.x)
|
|
DBG(_DBG_INFO, "* Origin.x adjusted: %i -> %i\n",
|
|
org, pParam->Origin.x);
|
|
}
|
|
}
|
|
|
|
/* END PLUSTEK-USBSCAN.C ....................................................*/
|