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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-pp_p48xx.c
Initial import of sane-backends version 1.0.24-1.2
Diffstat (limited to 'backend/plustek-pp_p48xx.c')
-rw-r--r--backend/plustek-pp_p48xx.c877
1 files changed, 877 insertions, 0 deletions
diff --git a/backend/plustek-pp_p48xx.c b/backend/plustek-pp_p48xx.c
new file mode 100644
index 0000000..6175a34
--- /dev/null
+++ b/backend/plustek-pp_p48xx.c
@@ -0,0 +1,877 @@
+/* @file plustek-pp_p48xx.c
+ * @brief here we have all functionality according to the ASIC96001/3 based
+ * models.
+ *
+ * based on sources acquired from Plustek Inc.
+ * Copyright (C) 1998 Plustek Inc.
+ * Copyright (C) 2000-2013 Gerhard Jaeger <gerhard@gjaeger.de>
+ * also based on the work done by Rick Bronson
+ *
+ * History:
+ * - 0.30 - initial version
+ * - 0.31 - fixed a bug for the return value in p48xxDoTest
+ * - added additional debug messages
+ * - added function p48xxCheck4800Memory
+ * - 0.32 - added debug messages
+ * - fixed a bug in p48xxDoTest
+ * - disabled RD_WatchDogControl, lamp will be controlled by driver
+ * - 0.33 - added function p48xxSetAsicRegisters()
+ * - fixed a bug in p48xxDoTest (reset the ASIC registers)
+ * - removed p48xxPositionLamp
+ * - 0.34 - added some comments
+ * - 0.35 - added some comments
+ * - 0.36 - added function p48xxInitAllModules() to allow reinit of the modules
+ * - switching from Full- to Halfstep at ps->PhysicalDpi now in
+ * - p48xxSetGeneralRegister
+ * - fixed the color-inverse problem for model OP4800
+ * - 0.37 - move p48xxOpenScanPath, p48xxCloseScanPath
+ * and p48xxRegisterToScanner to io.c
+ * - removed // comments
+ * - added override for A3I scanner
+ * - 0.38 - added function p48xxPutToIdleMode()
+ * - added function p48xxCalibration
+ * - 0.39 - added A3I stuff
+ * - 0.40 - disabled A3I stuff
+ * - 0.41 - no changes
+ * - 0.42 - changed include names
+ * - 0.43 - no changes
+ * - 0.44 - fix format string issues, as Long types default to int32_t
+ * now
+ * .
+ * <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>
+ */
+#include "plustek-pp_scan.h"
+
+/*************************** some definitions ********************************/
+
+#define _TEST_SZ 2048 /* always use 2048 for mem size (= one bank) */
+#define _START_VAL 0x12345678 /* pick a non-zero starting value for our long */
+
+#define _BankAndSizeForTest _MemBankSize2k /* always use 2k for mem test */
+
+/*************************** local functions *********************************/
+
+/*.............................................................................
+ * 1) Set asic to PROGRAM mode
+ * 2) Select the memory bank and size
+ * 3) Initiate data fifo
+ */
+static void p48xxSetMemoryBankForProgram( pScanData ps , Byte bBankAndSize )
+{
+ /* enter program mode */
+ IODataToRegister( ps, ps->RegModeControl, _ModeProgram );
+
+ /* bank and size */
+ IODataToRegister( ps, ps->RegMemAccessControl, bBankAndSize );
+
+ /* initiate data fifo */
+ IORegisterToScanner( ps, ps->RegInitDataFifo );
+}
+
+/*.............................................................................
+ * use the internal memory of a scanner to find the model
+ */
+static int p48xxDoTest( pScanData ps )
+{
+ UChar tmpByte;
+ int retval;
+ ULong adder, ul, cntr;
+ pULong buffer;
+
+ DBG( DBG_LOW, "p48xxDoTest()\n" );
+
+ buffer = _KALLOC( sizeof(UChar) * _TEST_SZ, GFP_KERNEL );
+ if( NULL == buffer )
+ return _E_ALLOC;
+
+ retval = _E_NO_DEV;
+
+ /*
+ * do a memory test to determine how much memory this unit has, in the
+ * process we can figure out if it's a 4830 or a 9630. NOTE: the ram
+ * seems to be mirrored such that if you have a unit with only 32k it's
+ * mirrored 4 times to fill the 128k (2k * (_MemBankMask + 1)) space,
+ * so we will run a 32 bit incrementing pattern over the entire 128k and
+ * look for the 1st page (2k) to fail
+ */
+ adder = 0;
+ for (cntr = _BankAndSizeForTest;
+ cntr < _BankAndSizeForTest + _MemBanks; cntr++) {
+
+ ps->OpenScanPath( ps );
+
+ p48xxSetMemoryBankForProgram( ps, cntr );
+
+ /* prepare content, incrementing 32 val */
+ for (ul = 0; ul < _TEST_SZ / sizeof(ULong); ul++)
+ buffer[ul] = ul + adder + _START_VAL;
+
+ /* fill to buffer */
+ IOMoveDataToScanner( ps, (pUChar)buffer, _TEST_SZ );
+
+ /*
+ * now check bank 0 to see if it got overwritten
+ * bank 0, size 2k
+ */
+ p48xxSetMemoryBankForProgram( ps, _BankAndSizeForTest );
+
+ ps->CloseScanPath( ps );
+
+ /* read data back */
+ IOReadScannerImageData( ps, (pUChar)buffer, _TEST_SZ );
+
+ /* check */
+ for (ul = 0; ul < _TEST_SZ / sizeof(ULong); ul++) {
+ if (buffer[ul] != ul + _START_VAL) {
+ break;
+ }
+ }
+
+ /* if fail */
+ if (ul != _TEST_SZ / sizeof (ULong)) {
+ DBG( DBG_LOW, "Bank 0 overwritten\n" );
+ break;
+ }
+
+ /* now check current bank */
+ ps->OpenScanPath( ps );
+ p48xxSetMemoryBankForProgram( ps, cntr );
+ ps->CloseScanPath( ps );
+
+ /* read data back */
+ IOReadScannerImageData( ps, (pUChar)buffer, _TEST_SZ);
+
+ /* check if fail */
+ for( ul = 0; ul < _TEST_SZ / sizeof(ULong); ul++ ) {
+ if( buffer[ul] != ul + adder + _START_VAL )
+ break;
+ }
+
+ /* check if fail */
+ if (ul != _TEST_SZ / sizeof(ULong)) {
+ DBG( DBG_LOW, "Bank not present, error at pos %u (%u)\n", ul,
+ (ULong)(_TEST_SZ / sizeof(ULong)));
+ break;
+ }
+
+ adder += _TEST_SZ / sizeof(ULong);
+ }
+
+ _KFREE( buffer );
+
+ DBG( DBG_LOW, "found %d bytes of memory\n",
+ _TEST_SZ * (cntr - _BankAndSizeForTest));
+
+ if( cntr == _BankAndSizeForTest ) {
+ DBG( DBG_LOW, "No memory ! No scanner...\n" );
+ return retval;
+ }
+
+#ifdef DEBUG
+ tmpByte = IODataRegisterFromScanner( ps, 0x18 );
+ DBG( DBG_LOW, "tmpByte[0x18] = 0x%02x\n",tmpByte );
+#endif
+
+ tmpByte = IODataRegisterFromScanner( ps, 0x0e );
+ DBG( DBG_LOW, "tmpByte = 0x%02x, cntr = %u, AsicId = 0x%02x\n",
+ tmpByte, cntr, ps->sCaps.AsicID );
+
+ /* 128k */
+ if ((_TEST_SZ * (cntr - _BankAndSizeForTest) == 1 << 17) &&
+ (ps->sCaps.AsicID == _ASIC_IS_96003)) {
+
+ /*
+ * if 128k then must be a 9630 or above
+ * hack, test for 12000P, The 9630 returns an 0x08
+ */
+ if ( tmpByte == 0x02 ) {
+
+ /*
+ * as we currently can't automagically detect an A3I we have to
+ * use the override switch
+ */
+ if( _OVR_PLUSTEK_A3I == ps->ModelOverride ) {
+
+ DBG( DBG_LOW, "Model Override --> A3I\n" );
+ ModelSetA3I( ps );
+ } else {
+ ModelSet12000( ps );
+ DBG( DBG_LOW, "It seems we have a 12000P/96000P\n" );
+ }
+
+ } else {
+ ModelSet9630( ps );
+ DBG( DBG_LOW, "It seems we have a 9630\n" );
+ }
+
+ retval = _OK;
+
+ } else {
+
+ DBG( DBG_LOW, "Scanner is not a 9630 or above\n");
+
+ if ( tmpByte != 0x0f ) {
+
+ DBG( DBG_LOW, "Looks like a 600!\n" );
+
+ if (( 0x08 == tmpByte ) &&
+ ((_TEST_SZ * (cntr - _BankAndSizeForTest)) == 32768 )) {
+ DBG( DBG_LOW, "But it is a 4830P!!! "
+ "(by mkochano@ee.pw.edu.pl)\n" );
+ ModelSet4830( ps );
+ } else {
+ ModelSet600( ps );
+ }
+ }
+#ifdef DEBUG
+ else
+ DBG( DBG_LOW, "It seems we have a 4830\n" );
+#endif
+
+ retval = _OK;
+ }
+
+ return retval;
+}
+
+/*.............................................................................
+ * setup ASIC registers and clear all scan states (no stepping)
+ */
+static void p48xxSetAsicRegisters( pScanData ps )
+{
+ memset( &ps->AsicReg, 0, sizeof(ps->AsicReg));
+ memset( &ps->Asic96Reg, 0, sizeof(ps->Asic96Reg));
+ memset( ps->a_nbNewAdrPointer, 0, _SCANSTATE_BYTES );
+
+ ps->AsicReg.RD_LineControl = ps->TimePerLine;
+ ps->AsicReg.RD_ScanControl = _SCAN_LAMP_ON;
+ ps->AsicReg.RD_ModelControl = ps->Device.ModelCtrl | _ModelWhiteIs0;
+ ps->AsicReg.RD_Origin = 0;
+ ps->AsicReg.RD_Pixels = 5110; /*ps->RdPix;*/
+ ps->Asic96Reg.RD_MotorControl = 0;
+ ps->Asic96Reg.RD_WatchDogControl = 0; /* org. val = 0x8f; */
+
+ IOPutOnAllRegisters( ps );
+}
+
+/*.............................................................................
+ * use the internal memory of a scanner to find the model
+ */
+static int p48xxCheck4800Memory( pScanData ps )
+{
+ int retval;
+ ULong ul;
+ pUChar buffer;
+
+ DBG( DBG_LOW, "p48xxCheck4800Memory()\n" );
+
+ buffer = _KALLOC( 2560, GFP_KERNEL ); /* 1280: Read,1280:Write */
+ if( NULL == buffer )
+ return _E_ALLOC;
+
+ retval = _OK;
+
+ /* bank 0, size 2k */
+ ps->OpenScanPath( ps );
+ p48xxSetMemoryBankForProgram( ps, _BankAndSizeForTest );
+
+ for (ul = 0; ul < 1280; ul++)
+ buffer[ul] = (UChar)ul; /* prepare content */
+
+ IOMoveDataToScanner( ps, buffer, 1280 ); /* fill to buffer */
+ p48xxSetMemoryBankForProgram( ps, _BankAndSizeForTest );
+ ps->CloseScanPath( ps );
+
+ /* read data back */
+ IOReadScannerImageData( ps, buffer + 1280, 1280 );
+
+ for( ul = 0; ul < 1280; ul++ ) {
+ if( buffer[ul] != buffer[ul+1280] ) {
+ DBG( DBG_HIGH, "Error in memory test at pos %u (%u != %u)\n",
+ ul, buffer[ul], buffer[ul+1280] );
+ retval = _E_NO_DEV;
+ break;
+ }
+ }
+
+ _KFREE(buffer);
+
+ return retval;
+}
+
+/*.............................................................................
+ * call all other modules, to initialize themselves
+ */
+static int p48xxInitAllModules( pScanData ps )
+{
+ int result;
+
+ result = DacInitialize( ps );
+ if( _OK != result )
+ return result;
+
+ result = ImageInitialize( ps );
+ if( _OK != result )
+ return result;
+
+ result = IOFuncInitialize( ps );
+ if( _OK != result )
+ return result;
+
+ result = IOInitialize( ps );
+ if( _OK != result )
+ return result;
+
+ result = MotorInitialize( ps );
+ if( _OK != result )
+ return result;
+
+ /*
+ * in debug version, check all function pointers
+ */
+#ifdef DEBUG
+ if( _FALSE == MiscAllPointersSet( ps ))
+ return _E_INTERNAL;
+#endif
+ return _OK;
+}
+
+/*.............................................................................
+ *
+ */
+static int p48xxReadWriteTest( pScanData ps )
+{
+ int retval;
+
+ DBG( DBG_LOW, "p48xxReadWriteTest()\n" );
+
+ /*
+ * determine the model by the ASIC type (except for 4830/9630)
+ * might want to make a SetModelCommon() someday for this...
+ */
+ ps->RedDataReady = 0x01; /* normal for Red and Green */
+ ps->GreenDataReady = 0x02;
+ ps->AsicRedColor = 0x01;
+ ps->AsicGreenColor = 0x03;
+
+ /*
+ * if not already set, try to find ASIC type (96001 or 96003)
+ */
+ if ( _NO_BASE == ps->sCaps.wIOBase ) {
+
+ /* get copy of asic id */
+ ps->sCaps.AsicID = IODataRegisterFromScanner( ps, ps->RegAsicID );
+
+ if ( _ASIC_IS_96003 == ps->sCaps.AsicID ) {
+
+ /* actually either a 4830, 9630, 12000, find out later */
+ DBG( DBG_LOW, "Found a 96003 ASIC at Reg 0x%x\n", ps->RegAsicID );
+ ModelSet4830( ps );
+
+ } else {
+
+ if ( _ASIC_IS_96001 == ps->sCaps.AsicID ) {
+ DBG( DBG_LOW, "Found a 96001 ASIC at Reg 0x%x\n",
+ ps->RegAsicID );
+ ModelSet4800( ps );
+ } else {
+ DBG( DBG_LOW, "Can't find your model, asic = 0x%x\n",
+ ps->sCaps.AsicID );
+ return _E_NO_ASIC;
+ }
+ }
+ }
+
+ /*
+ * set the registers according to the assumptions above
+ */
+ p48xxSetAsicRegisters( ps );
+
+ if ( _ASIC_IS_96003 == ps->sCaps.AsicID ) {
+ retval = p48xxDoTest( ps );
+
+ /*
+ * as we may now have detected another model, we have to set
+ * the registers to their new values...
+ * and maybe the modules have to be reset as well
+ */
+ if( _OK == retval ) {
+ p48xxSetAsicRegisters( ps );
+ retval = p48xxInitAllModules( ps );
+ }
+
+ return retval;
+ }
+
+ /*
+ * this part will be reached only for the 4800 - ASIC 96001
+ * we check only the memory as the original driver does
+ */
+ return p48xxCheck4800Memory( ps );
+}
+
+/*.............................................................................
+ * 1) Setup the registers of asic.
+ * 2) Determine which type of CCD we are using
+ * 3) According to the CCD, prepare the CCD dependent veriables
+ * SONY CCD:
+ * The color exposure sequence: Red, Green (after 11 red lines),
+ * Blue (after 8 green lines)
+ * TOSHIBA CCD:
+ * The color exposure sequence: Red, Blue (after 11 red lines),
+ * Green (after 8 blue lines)
+ */
+static void p48xxSetupScannerVariables( pScanData ps )
+{
+ UChar tmp;
+ TimerDef timer;
+
+ DBG( DBG_LOW, "p48xxSetupScannerVariables()\n" );
+
+ ps->OpenScanPath( ps );
+
+ IODataToRegister( ps, ps->RegModelControl2, _Model2ChannelMult );
+
+ if( 2 == IODataFromRegister( ps, ps->RegWriteIOBusDecode1 )) {
+
+ DBG( DBG_LOW, "Scanner has 97003 ASIC too.\n" );
+ ps->f97003 = _TRUE;
+ ps->b97003DarkR = 8;
+ ps->b97003DarkG = 8;
+ ps->b97003DarkB = 8;
+
+ ps->Asic96Reg.u26.RD_ModelControl2 = _Model2ChannelMult;
+ } else {
+
+ DBG( DBG_LOW, "No ASIC 97003 found.\n" );
+ ps->f97003 = _FALSE;
+ ps->Asic96Reg.u26.RD_ModelControl2 = _Model2DirectOutPort;
+ }
+
+ IODataToRegister( ps, ps->RegModelControl2,
+ ps->Asic96Reg.u26.RD_ModelControl2 );
+
+ tmp = IODataFromRegister( ps, ps->RegStatus );
+ DBG( DBG_LOW, "Status-Register = 0x%02X\n", tmp );
+#ifdef DEBUG
+ if( tmp & _FLAG_P96_MOTORTYPE ) {
+ DBG( DBG_LOW, "Scanner has Full/Half Stepping drive\n" );
+ } else {
+ DBG( DBG_LOW, "Scanner has Micro Stepping drive\n" );
+ }
+#endif
+
+ if( tmp & _FLAG_P96_CCDTYPE) {
+ ps->fSonyCCD = _FALSE;
+ DBG( DBG_LOW, "CCD is NEC/TOSHIBA Type\n" );
+ } else {
+ ps->fSonyCCD = _TRUE;
+ DBG( DBG_LOW, "CCD is SONY Type\n" );
+ }
+
+ ps->CloseScanPath( ps );
+
+ ps->b1stColorByte = ps->AsicRedColor;
+ ps->b1stColor = ps->RedDataReady;
+
+ if (ps->fSonyCCD) {
+
+ ps->b2ndColorByte = ps->AsicGreenColor;
+ ps->b2ndColor = ps->GreenDataReady;
+ ps->b3rdColorByte = _ASIC_BLUECOLOR;
+ ps->b3rdColor = _BLUE_DATA_READY;
+
+ } else { /* NEC/Toshiba CCD */
+
+ ps->b2ndColorByte = _ASIC_BLUECOLOR;
+ ps->b2ndColor = _BLUE_DATA_READY;
+ ps->b3rdColorByte = ps->AsicGreenColor;
+ ps->b3rdColor = ps->GreenDataReady;
+ }
+
+ ps->b1stMask = (Byte)~ps->b1stColor;
+ ps->b2ndMask = (Byte)~ps->b2ndColor;
+ ps->b3rdMask = (Byte)~ps->b3rdColor;
+
+ ps->b1stLinesOffset = 17;
+ ps->b2ndLinesOffset = 9;
+
+ /*
+ * calculate I/O Timer
+ * if we cannot read 200 lines within 1 second, the I/O time has to add 2
+ * CalculateIOTime ()
+ */
+ if( _PORT_SPP != ps->IO.portMode ) {
+
+ UShort wLines = 200;
+ pUChar pBuf;
+
+ pBuf = _KALLOC((_BUF_SIZE_BASE_CONST * 2), GFP_KERNEL );
+
+ if ( NULL != pBuf ) {
+
+ MiscStartTimer( &timer, _SECOND );
+
+ do {
+ IOReadScannerImageData( ps, pBuf, (_BUF_SIZE_BASE_CONST * 2));
+
+ wLines--;
+ } while (!MiscCheckTimer( &timer) && wLines);
+
+ if( !wLines )
+ ps->bExtraAdd = 0;
+ else
+ ps->bExtraAdd = 2;
+
+ _KFREE( pBuf );
+
+ } else {
+ ps->bExtraAdd = 2; /* poor resource */
+ }
+ } else {
+ ps->bExtraAdd = 0;
+ }
+}
+
+/*.............................................................................
+ *
+ */
+static void p48xxSetGeneralRegister( pScanData ps )
+{
+ if( MODEL_OP_A3I == ps->sCaps.Model ) {
+ ps->AsicReg.RD_ModelControl = _ModelDpi400 | _ModelWhiteIs0 |
+ _ModelMemSize128k4;
+ }
+
+ ps->AsicReg.RD_ModeControl = _ModeScan;
+
+/* WORK: ps->PhysicalDpi should be correct, but the we have to work
+ * on motor.c again to use other running-tables
+ * if ( ps->DataInf.xyAppDpi.y <= ps->PhysicalDpi ) {
+ */
+ if ( ps->DataInf.xyAppDpi.y <= 300 ) {
+/* HEINER:A3I
+ if ( ps->DataInf.xyAppDpi.y <= ps->PhysicalDpi ) {
+*/
+ ps->Asic96Reg.RD_MotorControl = (ps->FullStep | ps->IgnorePF |
+ ps->MotorOn | _MotorDirForward);
+ } else {
+ ps->Asic96Reg.RD_MotorControl = (ps->IgnorePF | ps->MotorOn |
+ _MotorDirForward);
+ }
+
+ if ( ps->DataInf.wPhyDataType == COLOR_BW ) {
+ ps->AsicReg.RD_ScanControl = ps->bLampOn;
+
+ if (!(ps->DataInf.dwScanFlag & SCANDEF_Inverse))
+ ps->AsicReg.RD_ScanControl |= _P96_SCANDATA_INVERT;
+
+ } else {
+
+ ps->AsicReg.RD_ScanControl = ps->bLampOn | _SCAN_BYTEMODE;
+
+ if (ps->DataInf.dwScanFlag & SCANDEF_Inverse)
+ ps->AsicReg.RD_ScanControl |= _P96_SCANDATA_INVERT;
+ }
+
+ if (ps->DataInf.xyPhyDpi.x <= 200)
+ ps->AsicReg.RD_ScanControl |= _SCAN_1ST_AVERAGE;
+
+ DBG( DBG_LOW, "RD_ModeControl = 0x%02x\n", ps->AsicReg.RD_ModeControl );
+ DBG( DBG_LOW, "RD_MotorControl = 0x%02x\n", ps->Asic96Reg.RD_MotorControl );
+ DBG( DBG_LOW, "RD_ScanControl = 0x%02x\n", ps->AsicReg.RD_ScanControl );
+}
+
+/*.............................................................................
+ *
+ */
+static void p48xxSetupScanningCondition( pScanData ps )
+{
+ DBG( DBG_LOW, "p48xxSetupScanningCondition()\n" );
+
+ IORegisterDirectToScanner( ps, ps->RegInitDataFifo );
+
+ /* Cal64kTime (); */
+ if( MODEL_OP_A3I == ps->sCaps.Model )
+ ps->wLinesPer64kTime = (UShort)(65555UL / ps->DataInf.dwAsicBytesPerPlane *
+ 5UL);
+ else
+ ps->wLinesPer64kTime = (UShort)(65555UL / ps->DataInf.dwAsicBytesPerPlane *
+ 10UL / 3UL);
+
+ DBG( DBG_LOW, "wLinesPer64kTime = %u\n", ps->wLinesPer64kTime );
+
+ ps->InitialSetCurrentSpeed( ps );
+
+ DBG( DBG_LOW, "Current Speed = %u\n", ps->bCurrentSpeed );
+
+ ps->bMinReadFifo = (Byte)((ps->DataInf.dwAsicBytesPerPlane + 511) / 512);
+ DBG( DBG_LOW, "MinReadFifo = %u\n", ps->bMinReadFifo );
+
+ p48xxSetGeneralRegister( ps );
+
+ /*
+ * if speed is not the fastest and DPI is less than 400, do half steps
+ */
+ if( ps->DataInf.wPhyDataType >= COLOR_256GRAY &&
+ !(ps->bCurrentSpeed & 1) && (ps->DataInf.xyAppDpi.y <= 300)) {
+/* HEINER:A3I
+ if( !(ps->bCurrentSpeed & 1) && (ps->DataInf.xyAppDpi.y <= ps->PhysicalDpi)) {
+*/
+ ps->fHalfStepTableFlag = _TRUE;
+ ps->Asic96Reg.RD_MotorControl &= ps->StepMask;
+ }
+
+ ps->AsicReg.RD_Dpi = ps->DataInf.xyPhyDpi.x;
+ DBG( DBG_LOW, "RD_Dpi = %u\n", ps->AsicReg.RD_Dpi );
+
+ /* SetStartStopRegister (ps) */
+ ps->AsicReg.RD_Origin = (UShort)(ps->Offset70 + ps->Device.DataOriginX +
+ ps->DataInf.crImage.x);
+
+ if (ps->DataInf.wPhyDataType < COLOR_256GRAY) {
+ ps->AsicReg.RD_Pixels =
+ (UShort)(ps->DataInf.dwAsicPixelsPerPlane + 7) & 0xfff8;
+ } else {
+ ps->AsicReg.RD_Pixels = (UShort)ps->DataInf.dwAsicPixelsPerPlane;
+ }
+
+ DBG( DBG_LOW, "RD_Pixels = %u\n", ps->AsicReg.RD_Pixels );
+
+ /* SetupMotorStart () */
+ IORegisterDirectToScanner( ps, ps->RegInitDataFifo);
+ ps->SetupMotorRunTable( ps );
+
+ IOSetToMotorRegister( ps );
+
+ ps->pCurrentColorRunTable = ps->pColorRunTable;
+ ps->bCurrentLineCount = 0;
+
+ IOPutOnAllRegisters( ps );
+
+ ps->OpenScanPath( ps );
+
+ /*
+ * when using the full-step speed on 600 dpi models, then set
+ * the motor into half-step mode, to avoid that the scanner hits
+ * the back of its cover
+ */
+ if((600 == ps->PhysicalDpi) && (1 == ps->bCurrentSpeed)) {
+
+ ps->Asic96Reg.RD_MotorControl &= ~ps->FullStep;
+ }
+
+ IODataToRegister( ps, ps->RegMotorControl,
+ (Byte)(ps->Asic96Reg.RD_MotorControl & ~ps->MotorOn));
+ IODataToRegister( ps, ps->RegMotorControl, ps->Asic96Reg.RD_MotorControl);
+ IORegisterToScanner( ps, ps->RegInitDataFifo );
+
+ ps->CloseScanPath( ps );
+}
+
+/*.............................................................................
+ * switch the motor off and put the scanner into idle mode
+ */
+static void p48xxPutToIdleMode( pScanData ps )
+{
+ DBG( DBG_LOW, "Putting Scanner (ASIC 96001/3) into Idle-Mode\n" );
+
+ /*
+ * turn off motor
+ */
+ ps->Asic96Reg.RD_MotorControl = 0;
+ IOCmdRegisterToScanner( ps, ps->RegMotorControl, 0 );
+}
+
+/*.............................................................................
+ * for P96001/3 ASIC
+ * do all the preliminary stuff here (calibrate the scanner and move the
+ * sensor to it´s start position, also setup the driver for the
+ * current run)
+ */
+static int p48xxCalibration( pScanData ps )
+{
+ DBG( DBG_LOW, "p48xxCalibration()\n" );
+
+ ps->Scan.bFifoSelect = ps->RegGFifoOffset;
+
+ while (_TRUE) {
+
+ _ASSERT(ps->WaitForShading);
+ if (ps->WaitForShading( ps )) {
+
+ if(!(ps->DataInf.dwScanFlag & SCANDEF_TPA)) {
+
+/* HEINER:A3I disable !! */
+ MotorP96AheadToDarkArea( ps );
+
+ if( ps->Scan.fRefreshState ) {
+ ps->Scan.fRefreshState = _FALSE;
+
+ if (!ps->fReshaded) {
+ ps->fReshaded = _TRUE;
+
+ if (ps->fColorMoreRedFlag || ps->fColorMoreBlueFlag) {
+ continue;
+ }
+ }
+ }
+ }
+ break;
+
+ } else {
+ ps->fScanningStatus = _FALSE;
+ ps->DataInf.dwAppLinesPerArea = 0;
+ return _E_TIMEOUT;
+ }
+ }
+
+ if((ps->sCaps.AsicID != _ASIC_IS_96001) &&
+ (ps->DataInf.wPhyDataType != COLOR_BW)) {
+ DacP96WriteBackToGammaShadingRAM(ps);
+ }
+
+ if( ps->DataInf.dwScanFlag & SCANDEF_TPA ) {
+ ps->bExtraMotorCtrl = 0;
+ ps->Scan.fMotorBackward = _TRUE;
+ MotorP96ConstantMoveProc( ps, 4000 );
+ }
+
+ /*
+ * move sensor and setup scanner for grabbing the picture
+ */
+ _ASSERT(ps->WaitForPositionY);
+ ps->WaitForPositionY(ps);
+ return _OK;
+}
+
+/************************ exported functions *********************************/
+
+/*.............................................................................
+ * initialize the register values and function calls for the 96001/3 asic
+ */
+_LOC int P48xxInitAsic( pScanData ps )
+{
+ DBG( DBG_LOW, "P48xxInitAsic()\n" );
+
+ ps->IO.bOpenCount = 0;
+
+ ps->RegSwitchBus = 0;
+ ps->RegReadDataMode = 1;
+ ps->RegWriteDataMode = 2;
+ ps->RegEPPEnable = 3;
+ ps->RegInitDataFifo = 4;
+ ps->RegForceStep = 5;
+ ps->RegInitScanState = 6;
+ ps->RegRefreshScanState = 7;
+ ps->RegStatus = 0x10;
+ ps->RegFifoOffset = 0x11;
+ ps->RegGetScanState = 0x12;
+ ps->RegAsicID = 0x13; /* Determine the asic */
+ ps->RegReadIOBufBus = 0x17;
+ ps->RegModeControl = 0x18;
+ ps->RegLineControl = 0x19;
+ ps->RegScanControl = 0x1a;
+ ps->RegMotorControl = 0x1b;
+ ps->RegModelControl = 0x1c;
+ ps->RegMemAccessControl = 0x1d;
+ ps->RegDpiLow = 0x1e;
+ ps->RegDpiHigh = 0x1f;
+ ps->RegScanPosLow = 0x20;
+ ps->RegScanPosHigh = 0x21;
+ ps->RegWidthPixelsLow = 0x22;
+ ps->RegWidthPixelsHigh = 0x23;
+ ps->RegThresholdControl = 0x24;
+ ps->RegWatchDogControl = 0x25;
+ ps->RegModelControl2 = 0x26;
+ ps->RegThresholdGapControl = 0x27;
+ ps->RegRedChShadingOffset = 0x28;
+ ps->RegGreenChShadingOffset = 0x29;
+ ps->RegRedDCAdjust = 0x27; /* not sure why these are dup's */
+ ps->RegGreenDCAdjust = 0x28;
+ ps->RegBlueDCAdjust = 0x29;
+ ps->RegBlueChShadingOffset = 0x2a;
+ ps->RegRedChDarkOffset = 0x2b;
+ ps->RegGreenChDarkOffset = 0x2c;
+ ps->RegBlueChDarkOffset = 0x2d;
+ ps->RegWriteIOBusDecode1 = 0x2e;
+ ps->RegWriteIOBusDecode2 = 0x2f;
+ ps->RegScanStateControl = 0x30;
+ ps->RegRedChEvenOffset = 0x31;
+ ps->RegGreenChEvenOffset = 0x32;
+ ps->RegBlueChEvenOffset = 0x33;
+ ps->RegRedChOddOffset = 0x34;
+ ps->RegGreenChOddOffset = 0x35;
+ ps->RegBlueChOddOffset = 0x36;
+ ps->RegRedGainOutDirect = 0x37;
+ ps->RegGreenGainOutDirect = 0x38;
+ ps->RegBlueGainOutDirect = 0x39;
+ ps->RegLedControl = 0x3a;
+ ps->RegShadingCorrectCtrl = 0x3b;
+ ps->RegScanStateBegin = 0x40; /* (0, 1) */
+ ps->RegScanStateEnd = 0x5f; /* (62, 63) */
+
+ /*
+ * setup function calls
+ */
+ ps->ReadWriteTest = p48xxReadWriteTest;
+ ps->SetupScannerVariables = p48xxSetupScannerVariables;
+ ps->SetupScanningCondition = p48xxSetupScanningCondition;
+ ps->PutToIdleMode = p48xxPutToIdleMode;
+ ps->Calibration = p48xxCalibration;
+
+ /*
+ * setup misc
+ */
+ ps->CtrlReadHighNibble = _CTRL_GENSIGNAL + _CTRL_AUTOLF;
+ ps->CtrlReadLowNibble = _CTRL_GENSIGNAL + _CTRL_AUTOLF + _CTRL_STROBE;
+
+ ps->MotorFreeRun = 0x80;
+ ps->bLampOn = _SCAN_LAMP_ON;
+ ps->f97003 = _FALSE;
+
+ /*
+ * initialize the other modules
+ */
+ return p48xxInitAllModules( ps );
+}
+
+/* END PLUSTEK-PP_P48xx.C ...................................................*/